Low frequency Deep Ground Penetrating Radar GPR Archives - Geotools

Low frequency deep Ground Penetrating Radar GPR 50-to-25 MHz Triton Dipole

Paul Ssali — Sun, 12 Sep 2021 02:22:39 +0000

Deep GPR investigation to 18-20m OKO-3 TRITON-M Deep Antenna

Product demonstration video https://youtu.be/SqDS_C9pUF0

For deep investigations to depths up to 18m using radar, Geotech Russia has expanded the OKO line of GPR with the new OKO-3 GPR with the Triton-M deep antenna unit ,utilizes optional low-frequency high power dipoles (frequency range 100, 50, 25MHz).

OKO-3 is the latest generation of high-performance GPR, providing 3 times faster sounding and improved radarogram quality. The OKO-3 series is used for a wide range of studies. The new radar with the unshielded unit Triton-M has a central frequency of 50/100 MHz and is intended for geophysical surveys under linear objects and engineering structures, as well as for geological work requiring an increase in depth. The main purpose is to carry out GPR surveys on rough terrain and in difficult operating conditions.

The major advantages of Triton-M are its small dimensions due to the collapsible design, as well as ease of assembly. The antenna unit consists of 2 sub-segments that fit into the convenient transport case included in the kit. These segments make it possible to change the central frequency of sounding between 50 MHz and 100 MHz.

Another advantage of the GPR is that its monoblock is equipped with a WI-FI module. This allows you to wirelessly control the OKO-3 from any Android or Windows device.

Features:

Unshielded antenna unit;
Possibility of varying the central frequency of sounding — 50/100MHz;
Maximum sounding depth up to 14/18 m;
Depth resolution from 0.5 to 1 m;
Power consumption — 3.6 W;
Collapsible 2-piece construction;
Wireless control via WI-Fi from Android / Windows devices.

Study type:

Deep studying;
Geological exploration;
Work in difficult conditions.

Application:

Geophysical surveys under linear objects and engineering structures.
Geological works requiring an increase in depth — surveying on rough terrain and in difficult operating conditions.

The «OKO-3» GPR with the Triton-M antenna unit is available for order. The kit is provided with a warranty of up to two years, as well as post-warranty service.

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4 A Road Scanning Ground Penetrating Radar GPR

Paul Ssali — Sun, 11 Apr 2021 09:40:44 +0000

The OKO-2 GPR Road Set uses special horn antennas (400-2500MHz) suspended above ground level and fixed to the vehicle by car suspension. The complex offers the users the single-channel and multi-channel solutions for high resolution survey up to 80 km per hour.

Geotech has a big experience of geophysical research on highway and collaborates with the leading Russian Road Companies.

Application

Engineering geophysical surveys for highways and overbridges construction

•Determining thickness of road pavement structural layers

•Detection of subsidence

•Detection of non solid and watered zones

•Study of engineering geological conditions of the zones liable to deformation

•Study of dangerous engineering geological processes:

•Landslides, floating earth, karstic phenomena

•Checking highway pavement structure compliance with project documentation

The Horn antennas (with central frequency from 400 to 2500 MHz) are designed for the detailed examination of pavement layer thickness.

Features:

•high speed multi-channel control unit

•number of channels: up to six (up to 6 profiles simultaneously)

•antennas frequency: from 150MHz up to 2500MHz

•maximum survey speed: up to 120 km/h

•detection depth: up to 8m

•creating 3D model

•GPS integration

•Automatic data processing

Key Characteristics

Operating time: up to 8 hours

Single-channel or two-channel control unit

Horn antenna 400MHz, 1000MHz, 1700MHz and 2000MHz

Control units are compatible with all OKO-2 GPR antennas

Survey rate up to 80 km/hour

The OKO-2 GPR Road Set combines:

•Control unit (single-channel or multi-channel)

•Notebook

•Power supply unit 9/12

•Optical transformer

•Charger ZU-9

•Motorcar odometer

•Antenna bracket

•Software GeoScan32

Software

OKO-2 GPR Technical Specification and Operating Instruction

GeoScan32 demo for Windows XP

GeoScan32

Geoscan 32 is designed for control of the ground penetration radar (GPR), as well as for further processing and visualization of the data obtained in the process of scanning.

Features

•GPR data acquisition with OKO-2 GPR in continuous mode, arrow mode (using odometer) and step-by-step mode

•Datavisualizationduringthesurvey

•Interactive determination of layer speeds and local objects occurrence depths

•Layer-by-layer processing

•Area survey data processing

•Terrain correction

•Trace editing

RadExplorer

RadExplorer – is designed for interactive processing and interpretation of GPR data developed by DECO Geophysical.RadExplorer is a specially designed program for GPR (ground-penetrating radar) data processing and interpretation. The options set optimized for GPR data and friendly human-engineered interface allow quick and effective processing of GPR data.

Applicable antenna options

AB-2000R

High-veloсity antenna of horn type with central frequency of 2000 MHz, depth of sounding up to 0,6 meter, resolution 0,02 meter

Price: More description
AB-1700R

Antenna of horn type with central frequency of 1700 MHz, narrowed directional diagram, opportunity to survey at a distance up to 0,02 meter above surface, opportunity of near-surface layer detailed survey, depth of sounding up to 0,8 meter, resolution 0,03…

Price: More description
AB-1000R

Antenna of horn type with central frequency of 1000 MHz, depth of sounding up to 1,5 meter, resolution 0,04 meter.

Price: More description
AB-400R

Antenna of horn type with central frequency of 400 MHz, depth of sounding up to 3 meter, resolution 0,10 meter. Processing and interpretation of GPR survey with 3-channel GPR (three antennas AB-400).

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4 Mala CX12 Concrete scanning

Paul Ssali — Sat, 03 Apr 2021 23:40:37 +0000

MALÅ CX CONCRETE SCANNER allows for the safe and simple scanning of concrete

Mala CX Concrete Scanner

Construction professionals involved in the cutting, coring or drilling of concrete structure require a safe and reliable means of inspecting work areas to locate and identify hidden features that could cause damage to machinery, or pose a danger to the operator or the structure itself during these activities.
The CX Concrete Scanning system allows you to scan concrete structure simply and safely and present data clearly for real-time and in-the-box data acquisition, display and analysis. It is a quicker, safer and more cost effective option than competing systems or traditional radiographic testing methods and is available with a range of accessories.

Key Features:

Full data retension for post-processing or on-site data review
Industry leading screen visibility, even in bright sunlight
Aircraft quality aluminum housing with IP67 rating
Superior Li-Ion battery technology for all day operation on a single charge
Flexibiliy of the choice between 5 different antenna options with 50/60Hz Electromagnetic (EM) sensor
LINUX operating system for fast and reliable job processing
Intuitive project driven user interface for enhanced work flow
Project modes for 2D, 3D Grid, and Object Mapper™
In-the-box 3D processing to clear jobs on site.
Hyperbola fitting and migration tool for velocity calibration
Screen-shot function for verification and simple reporting
GPS compatible
3D PC processing software included

Applications in Australia

In Australia the CX11 System is typically used concrete investigations. Main targets are post-tension cables and utilities. The system is also used for the mapping of steel reinforcement which under some conditions should not be cut by coring. Typically a locator using the CX11 concrete scanner would be called in to \’clear\’ an area prior to cutting or coring the concrete slab. Asphalt thickness estimation is also an common application The CX11 system is suited for individuals and organisations wanting to service the infrastructure and construction industries.

The first to combine GPR with Electro-Magnetic
The CX system was the world’s first to combine GPR with the more common Electro-Magnetic (EM) technology by way of a fully integrated 50/60 Hz sensor. This combination allows the detection of both metallic and non metallic objects and features, but also aids in the detection and location of metallic conductors energized with 50/ 60 Hz within the structure under investigation; thereby offering an additional element of safety to the system.

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4a Pile Integrity Testing

Paul Ssali — Sun, 28 Feb 2021 06:53:39 +0000

pile integrity testing
Pile integrity Testing brochure WATCH VIDEO- Assessment of Piles and Concrete slabs

Pile integrity Testing IDS-1 Manual

APPLICATIONS

• Determining the length, integrity, average strength, and defects of piles

• Surveying structures foundation

• Examining concrete hydraulic structures

• Inspecting tunnels, sewers, underground storage tanks

• Measuring thickness of foundation slab and detecting cavities under them

• Examining condition and strength of concrete structure.

IDS-1, IDS-2 Pile Integrity Testing

This instrument ” IDS-1″ and IDS-2 can determine the length of reinforced concrete piles, Steel and Wooden piles up to sixty meters in length, such piles applicable to deep pile foundation buildings, Dams, Piers, Telecom Communication towers and Marine structures including jetty.

Engineers can also use IDS -1 and IDS-2 for surveying a structures’ foundation and examining concrete hydraulic structures, as well as inspecting underground tunnels, sewers, underground storage tanks.

The High frequency two‐channel seismic station IDS-1 and IDS-2 is designed for the inspection of metal and reinforced concrete piles to 60 m in length, foundation walls, foundations of road and airport runways, in‐ground walls, bridge piles, and other concrete and stone‐made utilities.

Watch VIDEO

FEATURES

• Measuring acoustic wave velocity

• Working with different modes of vibration

• Can be used in a downhole version

• Easy and user-friendly interface

• Automatic data processing

• Several languages option (Russian, English)

• Specially designed for a variety of weather conditions

• Free training

• After-sales service

• Consulting webinars.

Pile length measuring method

The method is based on measuring the response time for the signal reflected from the other end of pile or from obstacles inside the pile that emerge due to its inhomogeneity. The lenght is calculated based on the known speed of primary wave for various types of piles and measured response time. The source of primary waves is a special hammer; the seismic pick up serves as a pick up of elastic vibration.

Software IMPACT (Better analysis than ordinary Pile software)

The software is used for automotive basic plates thickness, possible defects detection, survey the plate and soil engagement condition.

PILEMETER Software

Specialized PILEMETER software provides automated detection of the length of a pile or rate of the acoustic wave in the pile, and, more importantly, allows one to collect this necessary data easily and clearly. This Specialized software also helps to determine the thickness and defects of piles using the Impact Echo Principle.

It also..

Once the longitudinal wave velocity in the pile is defined, this software determines the length, integrity and localizing defects of piles.

The IDS-1 set includes:

•Electronic module

•Seismic pick-ups

•Charging unit

•Set of cables

•Set of documentation

•Transportation bag

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Low frequency deep Ground Penetrating Radar GPR 100MHz

Paul Ssali — Mon, 21 Dec 2020 03:21:46 +0000

http://geotechru.com/oko-3-gpr-with-control-processing-unit-8/
http://geotechru.com/ab-100m/

Geotech AB-100 MHz low frequency deep antennas

Geotech AB-150 MHz low frequency deep antennas

Antenna with central frequency of 100 MHz, depth of sounding up to 14 meter, resolution 0,45 meter

Screened demountable antenna
Main frequency	100 МHz
Depth of scanning	14,0m
Resolution capability	0,45m
Dimensions (assembled)	930x800x280mm
Weight (assembled)	16kg
Power consumption	6 Watt
Movement by wheels or by monoski

GeoScan32

Geoscan 32 is designed for control of the ground penetration radar (GPR), as well as for further processing and visualization of the data obtained in the process of scanning.

Features

•GPR data acquisition with OKO-2 GPR in continuous mode, arrow mode (using odometer) and step-by-step mode

•Datavisualizationduringthesurvey

•Interactive determination of layer speeds and local objects occurrence depths

•Layer-by-layer processing

•Area survey data processing

•Terrain correction

•Trace editing

RadExplorer

RadExplorer – is designed for interactive processing and interpretation of GPR data developed by DECO Geophysical.RadExplorer is a specially designed program for GPR (ground-penetrating radar) data processing and interpretation. The options set optimized for GPR data and friendly human-engineeredinterfaceallow quick and effective processing of GPR data.

Features:

•Automatic selection of optimum data processing parameters by default depending on the parameters of the data

•Interactive constructionof data processing flows with ability to save them on hard disk and re-use with other files

•Unlimited undo of the processing routines

•Interactive detemination of dielectric constant/velocity in the media and depth of target objects

•Reflection picking with saving the obtained picks into tabular text file

Flexible model editor and time-to-depth conversion

RadExProPlus

RadExProPlus is designed for comprehensive processing and interpretation of near-surface on-shore and off-shore seismic, VSP and GPR data under Windows 9x/Me/2000/XP/Vista.

Scope:

•Reflection data processing and interpretation

•Field quality control (QC) of 2D/3D seismic data

•Refraction seismic data processing and interpretation

•VSP data processing

•GPR data processing and interpretation

RadExPro Plus™ is operating on inexpensive Windows-driven PC’s and workstations. Install it onto a notebook and take afield or aboard a research vessel and enjoy all the potential of the full-blown system for seismic processing, interpretation and quality control!

Advantages:

•Convenient and easy data input/output allows loading of seismic and GPR data recorded almost in any format either from disk or tape

•User-friendly graphical interface enables construction of sophysticated processing flows for batch processing of seismic and GPR data

•Exhaustive set of efficient processing and QC procedures

•Set of fast interactive tools for seismic and GPR data visualization and analysis

•Handy interpreation facilities: horizon picking, seismic sequence attribute analysis, interactive map, well-log data visualization

•Flexible trace header management, including mathematical operations with header fields and much more

•Special means for visualization and analysis of header field values

•Powerful and effective data base which allows storing of seismic data, processing flows, well data, picks, velocity data, grids, etc

Open scalable architecture – if you miss a specific module, you can build it yourself and integrate into the package! (Programmers working in MS Visual C++ will be provided with special User Application Wizard).

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Low frequency deep Ground Penetrating Radar GPR 150MHz

Paul Ssali — Mon, 21 Dec 2020 02:52:51 +0000

http://geotechru.com/oko-3-gpr-with-control-processing-unit-8/
http://geotechru.com/ab-150m/

Geotech AB-150 MHz low frequency deep antennas

Antenna with central frequency of 150 MHz, depth of sounding up to 12 meter, resolution 0.35 meter

Screened demountable antenna
Main frequency	150 МHz
Depth of scanning	12.0m
Resolution capability	0.35m
Overall dimensions (assembled)	2270x1075x350(mm)
Weight (assembled)	14kg
Power consumption	7.5 Watt
Movement by wheels or by monoski

GeoScan32

Geoscan 32 is designed for control of the ground penetration radar (GPR), as well as for further processing and visualization of the data obtained in the process of scanning.

Features

•GPR data acquisition with OKO-2 GPR in continuous mode, arrow mode (using odometer) and step-by-step mode

•Datavisualizationduringthesurvey

•Interactive determination of layer speeds and local objects occurrence depths

•Layer-by-layer processing

•Area survey data processing

•Terrain correction

•Trace editing

RadExplorer

RadExplorer – is designed for interactive processing and interpretation of GPR data developed by DECO Geophysical.RadExplorer is a specially designed program for GPR (ground-penetrating radar) data processing and interpretation. The options set optimized for GPR data and friendly human-engineeredinterfaceallow quick and effective processing of GPR data.

Features:

•Automatic selection of optimum data processing parameters by default depending on the parameters of the data

•Interactive constructionof data processing flows with ability to save them on hard disk and re-use with other files

•Unlimited undo of the processing routines

•Interactive detemination of dielectric constant/velocity in the media and depth of target objects

•Reflection picking with saving the obtained picks into tabular text file

Flexible model editor and time-to-depth conversion

RadExProPlus

RadExProPlus is designed for comprehensive processing and interpretation of near-surface on-shore and off-shore seismic, VSP and GPR data under Windows 9x/Me/2000/XP/Vista.

Scope:

•Reflection data processing and interpretation

•Field quality control (QC) of 2D/3D seismic data

•Refraction seismic data processing and interpretation

•VSP data processing

•GPR data processing and interpretation

Advantages:

•Convenient and easy data input/output allows loading of seismic and GPR data recorded almost in any format either from disk or tape

•User-friendly graphical interface enables construction of sophysticated processing flows for batch processing of seismic and GPR data

•Exhaustive set of efficient processing and QC procedures

•Set of fast interactive tools for seismic and GPR data visualization and analysis

•Handy interpreation facilities: horizon picking, seismic sequence attribute analysis, interactive map, well-log data visualization

•Flexible trace header management, including mathematical operations with header fields and much more

•Special means for visualization and analysis of header field values

•Powerful and effective data base which allows storing of seismic data, processing flows, well data, picks, velocity data, grids, etc

The post Low frequency deep Ground Penetrating Radar GPR 150MHz appeared first on Geotools.

4- 250 / 700 MHz Dual frequency Ground Penetrating Radar GPR

Paul Ssali — Mon, 21 Dec 2020 02:07:15 +0000

http://geotechru.com/oko-3-gpr-with-control-processing-unit-8/
http://geotechru.com/ab-250700/

Central frequency	250 and 700 MHz
Depth of scanning	8 and 3 m
Resolution	0,25 and 0,1 m
250 MHz	0,25
700 MHz	0,1
Power consumption	7,8 W
Weight	11 kg
Size	740x450x190 mm
Temperature	-30 +50°C

DUAL‐FREQUENCY ANTENNA

The integrated multi‐frequency GPR OKO‐2 is designed for automated location of objects at different depths, simultaneously and in real time. This GPR combines a control unit and two antennas with the different frequencies. An antenna with dual frequencies of 250 and 700 MHz provides GPR data at depths of 8 and 3 meters simultaneously.The resolution 0,25 and 0,1 meter.

We will contact you within 24 hours

GeoScan32

Geoscan 32 is designed for control of the ground penetration radar (GPR), as well as for further processing and visualization of the data obtained in the process of scanning.

Features

•GPR data acquisition with OKO-2 GPR in continuous mode, arrow mode (using odometer) and step-by-step mode

•Datavisualizationduringthesurvey

•Interactive determination of layer speeds and local objects occurrence depths

•Layer-by-layer processing

•Area survey data processing

•Terrain correction

•Trace editing

RadExplorer

RadExplorer – is designed for interactive processing and interpretation of GPR data developed by DECO Geophysical.RadExplorer is a specially designed program for GPR (ground-penetrating radar) data processing and interpretation. The options set optimized for GPR data and friendly human-engineeredinterfaceallow quick and effective processing of GPR data.

Features:

•Automatic selection of optimum data processing parameters by default depending on the parameters of the data

•Interactive constructionof data processing flows with ability to save them on hard disk and re-use with other files

•Unlimited undo of the processing routines

•Interactive detemination of dielectric constant/velocity in the media and depth of target objects

•Reflection picking with saving the obtained picks into tabular text file

Flexible model editor and time-to-depth conversion

RadExProPlus

RadExProPlus is designed for comprehensive processing and interpretation of near-surface on-shore and off-shore seismic, VSP and GPR data under Windows 9x/Me/2000/XP/Vista.

Scope:

•Reflection data processing and interpretation

•Field quality control (QC) of 2D/3D seismic data

•Refraction seismic data processing and interpretation

•VSP data processing

•GPR data processing and interpretation

Advantages:

•Convenient and easy data input/output allows loading of seismic and GPR data recorded almost in any format either from disk or tape

•User-friendly graphical interface enables construction of sophysticated processing flows for batch processing of seismic and GPR data

•Exhaustive set of efficient processing and QC procedures

•Set of fast interactive tools for seismic and GPR data visualization and analysis

•Handy interpreation facilities: horizon picking, seismic sequence attribute analysis, interactive map, well-log data visualization

•Flexible trace header management, including mathematical operations with header fields and much more

•Special means for visualization and analysis of header field values

•Powerful and effective data base which allows storing of seismic data, processing flows, well data, picks, velocity data, grids, etc

The post 4- 250 / 700 MHz Dual frequency Ground Penetrating Radar GPR appeared first on Geotools.

4- OKO-3 Ground Penetrating Radar GPR

Paul Ssali — Sun, 20 Dec 2020 05:46:13 +0000

http://geotechru.com/oko-3-gpr-with-control-unit-2/

The OKO-3 GPR is a portable lightweight low-prices system designed for non-destructive environmental monitoring. The OKO-3 GPR includes the control unit and antennas. All antennas are interchangeable and meet the needs of a broad range of applications.

The control unit is designed for control of all GPR operating modes. CU are manufactured in two types – one channel (one antenna unit can be connected) and two channel (possible to connect two antenna units)..

The control unit receives notebooks’ orders via Ethernet interface or Wi-Fi channel, processes antenna units’ current set-up and send it via RS-422 interface to antenna unit, sends to antenna commands for operational mode, receives data from the antenna unit, arrange secondary data processing, transfers the data after processing to via Ethernet interface to notebook.

GPR ANTENNAS

Antennas covers frequencies from 50 MHz for deep geological surveying to up to 2500 MHz for high‐resolution investigations. Using low‐frequency antennas, one can increase the depth of sounding.If high resolution scanning of the near surface section is required, though, it is advisable to use high‐frequency antennas. A combination of antennas with different frequencies yields best results.

Type	Antenna (АB)	Сentral Frequency АB, МHz	Maximum depth of penetration, m	Resolution, сm	Power consumption, Watt	Dimensions, mm	Weight, kg
Shielded	АB-2500M	2500	0,6	1,5	3	220x172x120	0,9
	АB-1700M	1700	1	3	3	220x172x120	0,9
	АB-1200M	1200	1,5	3	3	220x172x120	0,9
	АB-900M	900	1,5	3	3	290x185x140	2,3
	АB-700M	700	3	10	3,6	230x170x110	2,2
	AB-400M	400	5	5	5	520x290x170	4,5
	AB-250M	250	8	25	6	740x460x150	10
	АB-150M	150	12	35	6	930x800x280	16
	АB-100M	100	14	45	7,3	930x800x280	16
	АB-90	90	16	50	5	2270x1075x350	39
Horn	АB-2500R	2500	0,4	1,5	3	320x300x160	1,7
	АB-2000R	2000	0,6	2	3	320x300x160	1,7
	АB-1700R	1700	0,8	3	3	200x188x165	1,2
	AB-1000R	1000	1,5	4	3	630x200x525	7,3
	АB-400R	400	3	10	5,5	725x570x370	9,5
Dual-frequency	AB-300/900	300/900	7 and 2,5	20 and 8	7,8	740x460x150	11
	АB-250/700	250/700	8 and 3	25 and 10	7,8	740x460x150	11
	АB-150/400	150/ 400	12 and 5	35 and 15	8	930x800x280	16,5

SHIELDED ANTENNAS

For efficient work in conditions of existing air jamming (i.e. buildings, construction, power transmission lines, etc.), a set of antennas with shielded screen receivers and transmitters, protecting against the potentially harmful effect from the top semi‐sphere, are available.

DUAL‐FREQUENCY ANTENNAS

HORN ANTENNAS

Horn antennas are ideal for tasks associated with the high‐speed GPR surveying of elongated objects such as motorways and railways, which require ground lift‐off GPR location.

MULTIPLE LOW FREQUENCY ANTENNA: 15 MHZ, 25 MHZ, 35MHZ, 50MHZ, 100 MHZ

We can customize our low frequency antennas by customer’s demand.
High frequency antennas (such as 1600MHz, 2600MHz, 2800MHz, 3000MHz) can be customized by customer’s demand.

VIDEO

The OKO-3 GPR includes control unit or control processing unit and antennas. All antennas are interchangeable and meet the needs of a broad range of applications.

•Control unit

•Power supply unit BP 9/12

•Charger ZU-9

•Changer for a notebook

•Handle-rod (transportation handle or telescopic handle rod – it depends on antenna unit)

•Software (GeoScan32)

It was designed to operate with a notebook or a processing unit

USER MANUAL

The post 4- OKO-3 Ground Penetrating Radar GPR appeared first on Geotools.

3 Magnetotelluric MT, AMT, CSAMT

Paul Ssali — Sun, 13 Dec 2020 09:46:07 +0000

https://geodevice.co/main/electric/armt-5/

ARMT-5 — 5-channel 16/24-bit broadband EM system

Main features:

Large set of methods
Frequency bandwidth 0.1 Hz–1 MHz
5 channels of registration
Programmable external amplifiers
Built-in data processing and visualization
Automatic calibration

ARMT-5 complex is designed for implementation of a variety of electric survey methods: AMT, CSAMT, CSEM, RMT, CSRMT. Its wide frequency range (0.1 Hz–1 MHz) makes it possible to apply this tool to explore depths fr om first meters up to several kilometers for wide range of targets.

ARMT-5 recorder allows one to visualize data in real time in both time and frequency domains. To quality control, a robust estimator of tensor and scalar transfer functions (impedance and tipper) is built-in. The receiver has several useful features for a controlled source EM exploration. The receiver is equipped with a built-in sine signal generator for automatic calibration (including calibration of magnetic sensors) and programmable external amplifiers for magnetic and electrical sensors (gain: 1–256). Sophisticated functionality, application of the most up-to-date element base, good-quality connectors and case, large color screen, fast interfaces for downloading data from SSD drive, and other technical solutions make ARMT-5 modern, convenient and versatile broadband electromagnetic tool.

For ARMT-5 it is available a number of induction magnetic sensors:

ARMT-HF with operating frequency range 1–1 000 kHz
ARMT-MF with operating frequency range 20–20 000 Hz
ARMT-LF with operating frequency range 0.1–20 000 Hz

Magnetic MF and HF sensors are placed in a single plastic container with a bubble level and display for digital compass in its upper part. Antennas ARMT-LF can be additionally equipped with portable precision tripods, allowing, fast and accurate installation of sensors on any surface.

The estimated penetration depth of the ARMT-5 complex is presented in the table below. It depends on the frequency of the signal and the average electrical resistivity of investigated section:

An important feature of the complex is a high execution speed of observations when performing shallow studies due to implementation of automated and remote control of a controlled source (generator) over a radio channel. For example, in order to perform measurements with frequencies from 100 Hz and higher taking into account the time for spreading and assembly of measuring equipment at a point, it takes only about two minutes. Such speed of data acquisition is unattainable for other complexes and methods. For example, to perform VES at depths of about 300–500 m, it takes about half an hour, what is 10–20 times longer than working with ARMT-5. It is also important to understand that the inversion of ARMT-5 data can be performed both in 1D and 2D variants, and interpretation of VES data is carried out only for 1D model, what leads to an increase in the error of constructing the geoelectric section in a complex medium.

The high-impedance input of the preamplifier of electric channels realized in ARMT-5 allows to work with short (20 m) ungrounded lines at frequencies from 100 Hz and higher. This is especially useful when working in winter conditions or in arid areas, wh ere it is difficult to achieve acceptable grounding with conventional electrodes. When operating at frequencies from 0.1 Hz it becomes necessary to use longer (50–100 m) electric lines that are grounded by non-polarized or brass electrodes.

Problems that can be solved with ARMT-5:

Study of geological structure
Structural geographic mapping
Determination of rock depth
Mapping of karst structures, fracturing zones and zones of high humidity
Search for underground water
Monitoring of dangerous processes
Search, exploration and monitoring of hydro-therms
Permafrost studies
Environmental studies
Search and exploration of deposits of solid minerals
Search for oil and gas

Package contents:

Recorder ARMT-5
Battery charger
External GNSS antenna
Power cable
Сomm cable
USB with software
Documentation.

In addition to ARMT-5 the following may be purchased:

Low-Frequency magnetic coil sensor
Electric lines
Non-polarizing electrodes
Portable Precision Tripods
Controlled source with radio modem.

ARMT-5 recorder:

Frequency bandwidth	0.1 – 1 000 000 Hz
A/D converter	24-bit SAR and 16-bit Σ-Δ
Dynamic range	110 dB (0.1 Hz – 10 000 Hz) and 90 dB (10 – 1 000 kHz)
Sampling frequency	4, 32, 400, 4 000 kHz
Number of channels	5 (2 electric and 3 magnetic)
Display	color high-contrast 7” (1024×600)
Keyboard	membrane (22 buttons)
Drive	SSD (128 GB)
OS	Linux
Communication interfaces	1000BASE-T Ethernet, 802.11b / g Wi-Fi, the ability to connect an external radio modem for remote control of the generator
GNSS	built-in and external antennas for time synchronization and position evaluation
Calibration	automatic with built-in sine wave generator
Amplifiers	external programmable for magnetic and electrical sensors (gain: 1-1 000)
Operating temperature range	-30 ÷ +40°C
Power	from built-in battery or 12 V
Weight	4 kg

Inductive magnetic antennas ARMT:

	ARMT-LF	ARMT-MF	ARMT-HF
Frequency bandwidth	0.1-20 000 Hz	20-20 000 Hz	1-1 000 kHz
Length	1 110 mm	300 mm	200 mm
Diameter	70 mm	25 mm	25 mm
Weight	4.8 kg	360 g	200 g
Transformation coefficient	F≤0.5 Hz: 160 mV/nT·Hz F≥0.5 Hz: 80 mV/nT	40 mV/nT	30 mV/nT
Noise level (spectral density)	F=10 Hz: 8 fТ/Hz^½ F=1 000Hz: 2 fТ/Hz^½	F=10Hz: 1 800 fТ/Гц^½ F=100 Hz: 100 fТ/Hz^½ F≥1 kHz: ≤25 fТ/Hz^½	F=1 kHz: 100 fТ/Hz^½ F≥10 kHz: ≤8 fТ/Hz^½
Consumption current	18 mA	3-5 mA	6 mA
Supply voltage	±(7-10) V	5 V	5 V

https://geodevice.co/software/electric-software/zondmt1d/https://geodevice.co/software/electric-software/zondmt1d/https://geodevice.co/software/electric-software/zondmt1d/

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GSSI Concrete scanner

admin — Fri, 12 Jun 2020 03:14:51 +0000

GSSI StructuralMini concrete scanner

StructureScan Mini LT

Entry Level GPR System for Concrete Inspection

The StructureScan™ Mini is GSSI’s all-in-one GPR system for concrete inspection. This handheld system locates rebar, conduits, post-tension cables, voids and can be used to determine concrete slab thickness in real-time.

Max Depth: 50cm (20 in)
Antenna Frequency 1600 MHz
Weight 1.6Kg (3.6lbs)
Storage Capacity 2G
Optional Software Radan 7 Structurescan mini

RADAN 7 for StructureScan Mini
Accessories Extension Pole

Typical Uses

System Includes

The contractor’s choice to safely locate metallic and non-metallic targets within concrete

The StructureScan Mini LT is an all-in-one concrete inspection tool – antenna, positioning system and control unit combo.

Concrete Scanning Made Easy

The StructureScan Mini LT is compact and lightweight – weighing only 1.6 kg (3.6 lbs.), making it easy to use on the ground or for above-the-head survey locations.
Enhanced Data Visualization

The StructureScan Mini includes two modes of operation; 2D mode for real-time locating, and 3D mode for x-ray like images of the concrete. This system also incorporates two types of automatic target detection to aid users in interpreting data.

First-in-Class Capabilities

Incorporated into the design is an integrated laser positioning system, located on the front and sides of the unit to help users accurately mark targets. It also provides four-wheel drive to ensure efficient and accurate data collection.

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