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Summary of Contents for Proceq GPR
- Page 1 Proceq GPR Ground Penetrating Radar User Manual...
- Page 2 Released Company: Proceq SA Ringstrasse 2 CH-8603 Schwerzenbach Switzerland Classification: Technical Manual Revision History Date Author, Comments July 4, 2024 PEGG, HELG June 01, 2024 HELG Sept 30, 2024 GP8000 Lite release 10. December 2024 © Copyright 2024, PROCEQ SA...
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Page 3: Table Of Contents
5.13 Data storage, reading, archiving, sharing & reporting ............40 Applications ......................... 44 Concrete floor with joints ....................44 Concrete slab with post-tensioned beam ................45 Hollow core concrete slab ....................46 10. December 2024 © Copyright 2024, PROCEQ SA... - Page 4 Concrete slab with corrosion ..................... 46 Post-tensioned concrete slab .................... 47 Technical Specification ....................49 10. December 2024 © Copyright 2024, PROCEQ SA...
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Page 5: Legal Notice
Serious damage resulting from the effects of foreign bodies, accidents, vandalism and force majeure. All information contained in this documentation is presented in good faith and believed to be correct. Proceq AG makes no warranties and excludes all liability as to the completeness and/or accuracy of the information. Safety Instructions The equipment is not allowed to be operated by children or anyone under the influence of alcohol, drugs or pharmaceutical preparations. - Page 6 7 days. However, the period could vary depending on the courier. Hence, it is recommended to check the exact time limit when receiving the goods. If there are any damages also inform your authorized Proceq agent or Proceq SA immediately. Shipment Should the device be transported again, it must be packaged properly.
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Page 7: Introduction
Figure 1: Proceq GPR System 1.1 Scope of this document This document is the user manual for all products of the Proceq GPR Product family. Therefore, some pictures or functional descriptions may differ from your model. 1.2 Product versions To be able to use the functionality of the GP app, a software license is required. - Page 8 Please refer to the table below for the supported features of the respective licenses: GP8000 Lite GP8000 GP8800 GP8100 Sensor radar Stepped-frequency continuous-wave (SFCW) GPR technology Antenna 1 (w. cross-polarization 6 (array) set) Modulated 200 – 4000 MHz 400 – 6000 MHz 400 –...
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Page 9: Product Applications
Multi-usage For small & congested areas For large areas Ideal for long line scene & tunnels Ideal for curved surfaces Ideal for bridge deck & parking slab Figure 2: Proceq GPR applications 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 10: Scope Of Delivery
2 Scope of Delivery Please refer to the Quick Start Guide provided in the standard delivery and available in download section of the product webpage: SET-GP8X00-QSG-200x140-240408-digital.pdf (screeningeagle.com) 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 11: Measurement Principle
GPR is the acronym for Ground Penetrating Radar, also known as Georadar, Ground Penetration Radar, or Ground Probing Radar. Proceq GPR is a compact device that scans the subsurface in a non-destructive way. It can penetrate the surface, based on concrete conditions and antenna characteristics. - Page 12 The wave is sensitive to the change of material which is characterized by B-Scans Trace ɛ the dielectric permittivity of the material. A-Scan Radargram Migrated View Figure 5 : A-scan, B-scan & migrated views principles 10. December 2024 © Copyright 2024, PROCEQ SA...
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Page 13: Sensor Overview
Turn on: long press 1 second one of the two buttons on each side (see Figure 7) Turn off: long press 4 seconds one of the two buttons on each side (see Figure 7) Button on each side Figure 7: GP8800 Buttons on each side 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 14: Start/Stop Measurement
Figure 8: GP8000 & GP8100 Action buttons on each side Start/stop: short press touchscreen following Figure 9 Touchscreen Start Stop Set marker Figure 9 : GP8000 & GP8100 Touchscreen functions 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 15: Set Marker
IF device position is at front line, short press one button on side THEN STOP IF device is in back position, short press one button on side THEN MARK When selected by the user, “forward marking mode”: 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 16: Laser Functions (Gp8000 & Gp8100)
The GP8800 single encoder wheel can be mounted for different purposes: To adapt to scanning conditions (ex: congested space). To turn the antenna at 90°in cross-polarization mode (see section 5.6) Figure 12 : GP8800 flexible wheel mounting 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 17: Multiline (Gp8100)
4.5 Multiline (GP8100) The GP8100 is a GPR array scanner. This means the device scans 6 lines (A, B, C, D, E, F) in only one scan called Superline scan (see section 5.7). It is equipped with a LED to facilitate data visualization on the iPad display when the user wishes to focus on one line scan view. -
Page 18: Software Overview
2. Press on the Data tile to do the process in multiple steps Figure 14: Creating a new measurement in the selected Screening Eagle ID account The quick new measurement creation is not available if the GP8x00 probe is not connected. 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 19: Creating A Folder For Multiple Measurements
5.3 User Interface Whether in data collection or review time, the interface presented to the user consists of four main elements: 1. Data visualization area 2. Function buttons 3. Settings menu 4. Status 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 20: Pressing Function Buttons
All function buttons are activated with a brief touch or Tap. 5.3.2 Selecting graphical items To create, select or delete graphical items, such as tags, points of interest or linework, generally a gesture of Touch & hold will apply. 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 21: Zooming In And Out
When the GP8000 is rolled, the distance measured by the encoder is applied on the radargram, moving towards the left on top of data already collected. A yellow indicator represents the current position, so that the user can determine precisely when located on top of an object. 10. December 2024 © Copyright 2024, PROCEQ SA... - Page 22 The user can move to any new location and press Start twice. A new line with an empty set of radargrams will start to be collected again. Figure 19: Measuring a line scan 10. December 2024 © Copyright 2024, PROCEQ SA...
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Page 23: Review Mode
Manual gain adjustment Figure 20: GP app software line scan raw data view Single finger swipe left-right to display or not the A-scan Figure 21 : GP app software line scan migrated view 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 24: Cross Polarized Line Scan (Gp8800)
(90° rotation as per Figure 23) and the encoder wheel mounting (see Figure 12). The cross-polarized line scan may unveil the presence of deeper/hidden objects. Scanning direction Normal way of using GPR: Helps to detect objects/cables below a rebar net ... -
Page 25: Superline Scan (Gp8100)
Figure 24: GP8100 Superline scan 5.8 Area scan An area scan, also called C-scan, can be generated from the combination of different line scans in each direction (X & Y) as described in Figure 25. 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 26: Starting A Measurement
Maintain the grid paper dimensions by 1. setting the resolution corresponding to match the grid paper. Use the flexible grid by 2. adjusting the dimensions with your finger or by tapping then 1. setting the resolution to match the grid paper. 10. December 2024 © Copyright 2024, PROCEQ SA... - Page 27 Once the area scan dimensions are set, proceed to scan line by line in sequence until the measurement is complete. Figure 27: Area scan measurement grid Figure 28: Scanning with grid paper 10. December 2024 © Copyright 2024, PROCEQ SA...
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Page 28: Time Slice View
The GP app software provides a 3D view that enhances target location comprehension. Users can easily adjust the colors of each depth interval to distinguish objects by moving the left slider. Figure 30: GP app software 3D view 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 29: Augmented Reality (Ar)
GP8000/GP8800 sensor kits. This marker serves as the reference point (center = 0,0) that is placed on the surface to project the image onto the iPad. Figure 31: Augmented Reality marker 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 30: Tags & Live Wire Detection
It is recommended to use the A-scan (peak of the red envelope) to place tags on detected objects. The live wire intensity can be adjusted using the threshold slider in the Display settings. 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 31: Image Processing
5.10.1 Gain Due to GPR energy attenuation in concrete, some objects may appear weak or invisible. By increasing energy through gain, the image can be improved with targets being more visible. -
Page 32: Noise Cancellation
Interfering noise from close electronics devices, Wi-Fi routers or smartphones may affect the data quality with “typical scare pattern” appearing on measurement views. Figure 36: Noise affecting GPR object detection GP app software provides in image processing dropdown menu: the “Noise Cancellation”... -
Page 33: Background Removal
Figure 37: GP app software image processing noise cancellation 5.10.3 Background removal In some circumstances, GPR waves from the transmitter are received by the receiver without penetrating the concrete. This creates a disturbance called “background” (visual longitudinal strip) which affects the data quality and may hide shallow targets. -
Page 34: Dielectric Constant
Figure 39: GP app software image processing background removal Use with caution, background removal may remove desired targets. When first viewing a GPR radargram (B Scan), it is advisable to set background removal to zero so as not to remove legitimate linear features from the data. - Page 35 (B-scan) as shown in Figure 42. Make sure the yellow hyperbola precisely covers-up the object’s hyperbola. Try with different clean hyperbolas to confirm the concrete dielectric estimation. 10. December 2024 © Copyright 2024, PROCEQ SA...
- Page 36 Eddy current Rebar depth: +/- 5mm error margin after adjustment +/- 1mm error margin (independent of concrete characteristics ε) Figure 43: GP app software tag object set depth for calibration of concrete dielectric ( 10. December 2024 © Copyright 2024, PROCEQ SA...
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Page 37: Adjustable Time Window (Gp8000)
5.10.5 Adjustable Time window (GP8000) The time window is the time that the antenna’s receiver spends for listening the GPR signals reflected from objects (reflectors) embedded in concrete (see Figure 44). Most handheld antennas have a fixed time window. Therefore they are no suited to receive reflected signals from deeper objects (provided an adequate range of low frequencies) and only focus on shallow layers. -
Page 38: Display & Preferences
A-scan with negative amplitude A-scan with positive amplitude Color display From Concrete to Metal or water From Concrete to Plastic or air setting Black-white (by default) white-BLACK-white hyperbola black-WHITE-black hyperbola White-black black-WHITE-black hyperbola white-BLACK-white hyperbola 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 39: Marking Preference
Geolocation Measurement setting changes Additional information can be stored in the logbook by the user: Pictures of the site Relevant snap shot Text & voice notes 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 40: Data Storage, Reading, Archiving, Sharing & Reporting
The tabs provide all the screenshot views & logbook information. Sharing from workspace is possible with different formats such as SEGY or JPG. Figure 49: Screening Eagle Workspace 10. December 2024 © Copyright 2024, PROCEQ SA... - Page 41 When accessing Workspace, it is possible to archive one or multiple measurements. To do so: 1. Select the measurement to be archived 2. Press the button Archive 3. The file will be automatically moved from the “All Measurements” to “Archive” folder 10. December 2024 © Copyright 2024, PROCEQ SA...
- Page 42 When the app is accessed next time (if app already running, please force a refresh by sliding up the list on the “All Measurements” screen), the archived measurement will simply not be listed and will not sync anymore to the iPad: 10. December 2024 © Copyright 2024, PROCEQ SA...
- Page 43 The measurement will move to the “All Measurements” folder again, and the app will recognize it in the next login or refresh, by synchronizing it again, provided there is local space in the iPad. 10. December 2024 © Copyright 2024, PROCEQ SA...
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Page 44: Applications
The raw data and migrated views can locate and verify the irregular depth of top rebar and the position of different construction joints. Figure 50: GP app software migrated view concrete floor with joints application 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 45: Concrete Slab With Post-Tensioned Beam
Measurement Mode: Line scan with tags, perpendicular to beams The raw data view shows top rebar and the PT beam bearing the slab. Figure 52: GP app software raw data view concrete slab with PT beam application 10. December 2024 © Copyright 2024, PROCEQ SA... -
Page 46: Hollow Core Concrete Slab
Corroded rebar dissipates GPR waves and returns less energy than healthy steel rebar. Proceq GPR helps to find out the potential presence of corroded rebar, however it is strongly recommended to use other tools & sensors such as GPR Insights post processing software or half-cell potential technology (Profometer PM8500) to strengthen the analysis. - Page 47 The time slice view reveals at a certain depth all the PT duct layout and few rebar. The B-scan and superline scan in split view confirm the presence of the PT ducts underneath the rebar. 10. December 2024 © Copyright 2024, PROCEQ SA...
- Page 48 Figure 55: GP app software area scan PT concrete slab application Figure 56: GP app software raw data view PT concrete slab application 10. December 2024 © Copyright 2024, PROCEQ SA...
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Page 49: Technical Specification
7 Technical Specification Measurement Principle Stepped-frequency continuous-wave (SFCW) GPR Regulatory compliance CE, IC, FCC, UKCA and RoHS Connectivity Wi-Fi (802.11n) to display unit (iPad) USB-C to iPad for Wi-Fi restricted areas (GP8100 & GP8800 only) Warranty 2 years Operating Temperature 5°C to 40°C / 40°F to 105°F... - Page 50 The English version of the content remains the official version. All translated content should bear an appropriate notice to this effect. For safety and liability information, please download at www.screeningeagle.com/safety-and-liability Subject to change. Copyright © 2023 by Proceq SA, Schwerzenbach. All rights reserved. 10. December 2024 © Copyright 2024, PROCEQ SA...
- Page 51 OUTH MERICA HQ - S WITZERLAND Proceq SAO Equipamentos de Mediçao Ltda. Ringstrasse 2 Rua Paes Leme 136 CH-8603 Schwerzenbach Pinheiros, Switzerland Sao Paulo SP 05424-010 Brasil +41 43 355 38 00 T +55 11 3083 3889 UROPE IDDLE Screening Eagle UK Limited...
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