! "# Radar Ballast Inspection Tool (RABIT1) User Manual $ % " & "
! "# Table of Contents 1 2 3 4 FCC Class A Compliance and Usage Limitations.................................................................3 IC Compliance and Usage Limitations .................................................................................5 FCC/IC Radiation Exposure Statement ................................................................................6 Introduction .....................................................................................................................
! "# 1 FCC Class A Compliance and Usage Limitations This device complies with Part 15 Subpart B and Subpart F of the FCC Rules. Operation is subject to the following two conditions: (1) the device may not cause harmful interference, and (2) this device must accept any interference received including interference that may cause undesired operation. FCC ID: 2AP78-RABIT1 and contains RF Module FCC ID: Z64-WL18DBMOD.
! "# pertinent contact information of the user, the desired geographical area(s) of operation, and the FCC ID number and other nomenclature of the UWB device. If the imaging device is intended to be used for mobile applications, the geographical area(s) of operation may be the state(s) or county(ies) in which the equipment will be operated. The operator of an imaging system used for fixed operation shall supply a specific geographical location or the address at which the equipment will be operated.
! "# 2 IC Compliance and Usage Limitations This device complies with Canadian RSS-220, RSS-GEN and ICES-003. Operation is subject to the following two conditions: (1) the device may not cause harmful interference, and (2) this device must accept any interference received including interference that may cause undesired operation. IC: 2AP78-RABIT1 and contains RF Module IC:451I-WL18DBMOD. According to the RSS-220, Issue 1, Section 6.2, this device has several requirements and limitations for use.
! "# 3 FCC/IC Radiation Exposure Statement This equipment complies with the IC/FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and any part of your body. Cet équipement est conforme aux limites d'exposition aux rayonnements énoncées pour un environnement non contrôlé.
! "# 4 Introduction 4.1 Overview This document provides the operating and configuration instructions for the Radar Ballast Inspection Tool (RABIT). The RABIT provides non-destructive measurements of ballast fouling and moisture over a 10 crib area of investigation. The scanner utilizes cutting-edge radar technology to measure ballast condition in the field without invasive digging or physical sampling.
! "# thicknesses, and different types of gradation at the layer boundaries. All of these properties affect the characteristics of the reflected radar waves and a change in any property can change the reflected radar waves. A traditional approach to analyzing radar data is to use a physicsbased approach that specifically accounts for each of the properties listed above; but this is difficult for such a complex problem.
! "# Figure 3. RABIT shown disassembled (left) and fully assembled (right). 6 Operation This section provides operating instructions for conducting surveys, generating reports, and recharging the batteries. 6.1 Conduct a Survey To conduct a survey, proceed as follows. 1. Turn on the power to the sensor unit. The power switch should glow with a green light. 2. Boot up the tablet computer and log in. Enable the mouse pointer using the mouse icon on the task bar if desired. 3.
! "# Figure 4. The EssGpr4LoggingApp. Use the circled icon to hide/show the status panel which shows detailed information that most users can ignore. 6. Before beginning a survey, it is important to capture information about the jobsite. Press the Jobsite information button to bring up the dialog shown in Figure 5. The information entered into this dialog will be listed in any reports that will be generated by the software.
! "# Figure 5. Jobsite information dialog. 8. Select File, New, and then choose a location and name for the database file. When ready to begin the survey, press the Record data button . The button should appear activated to indicate that data are being recorded. Move the cart along the survey line to conduct the survey. 9. Move the RABIT to the first tie so that the tie is midway between the two white antennas. Press the press the marker icon.
! "# report that contains the job information and the scan results. The report will be stored as a PDF file. 11. If a scan is desired for the other side of the track, place the RABIT on the other rail and repeat steps 8-10. 12. After finishing a scan in a local area, the RABIT and tablet should be powered down.
! "# 7 Appendix 7.1 Software Installation If the tablet computer has not yet been setup for use with the RABIT II Scanner, proceed as follows. The thumb drive that was distributed with the system will be needed. 1. The tablet computer must use the Windows 10 operating system. The following tablet computers are approved. a. Dell Latitude 7212 b. Microsoft Surface Pro 6 c. Panasonic Toughpad FZ-G1 2. Turn on the tablet, wait for it to boot up, and then log in. 3.
! "# a. Use automatic range gain When this is selected the program automatically increases gain with increasing range to compensate for signal attenuation with range. The gain profile is automatically readjusted at the start of each line. b. Automatic zero time Use this setting to move the first arrival to the beginning of the plot. c. Antenna combination For the Pavement Scanner, this should always be set to TxA RxA. d. Depth/Time units Select the units for the vertical scale on the B-scan.
! "# Figure A1. The plot configuration dock. The GPR4 Record tab also has buttons for saving the B-scan image and generating a short report . The image can be saved as a PNG, BMP, or JPG file. The report will be saved as a PDF file, and will contain the survey metadata and the B-scan image. 7.2.2 Digitizer Settings The default settings for the digitizer are sufficient for nearly all surveys. Advanced users may choose to change these settings (see Figure A2).
! "# 3. Num Samples Select the number of samples for each A-scan. A value of 512 samples will work for most situations. Note that using a large number of samples (1024 or more) may limit the Trace Sample Rate. Use 512 samples for the RABIT. 4. Channel A/B Holdoff The GPR digitizer has two channels: A and B. The holdoff time can be adjusted independently for each channel. The B channel can only be adjusted in 4 ns increments relative to the A channel. Normally, users will not need to change these values.
! "# 7.5 Limited Warranty Earth Science Systems, LLC (ESS) warrants the Pavement Scanner hardware unit (PRODUCT) to be free from defect in material and workmanship under normal use for a period of one year from the date of shipment. Any computer systems purchased with the product are subject to the manufacturer's warranty and not the responsibility of ESS.
! "# -'(+" . 800-537-4183 Figure A3. Shipping label for container with batteries. 7.7 Technical Support Technical support is provided by Earth Science Systems, LLC between the hours of 9:00 AM and 5:00 PM EST at 303-800-2000.
! "# 7.8 Specifications • • • • • • • • • • • 500 MHz bi-static radar antenna Designed to be used with the Microsoft Surface Pro 4 tablet (or Panasonic Tough Pad). Dimensions: 30.5 x 11 x 49.5 inches (77.5 x 27.9 x 125.7 cm). Weight: 26.6 lbs. (12.1 kg). Shipping container dimensions: 33.4 x 22.0 x 12.9 inches (84.8 x 55.9 x 32.8 cm). Shipping weight: 69 lbs (31.3 kg). WiFi connection between sensor and tablet. Durable construction with IP65 ingress protection.
! "# Figure 12. Screenshot from HDFView showing the contents of an H5 file recorded by the sonic logging system. 7.10 License Agreement End User License Agreement (EULA) for EssGPR4LoggingApp This is a legal agreement between Earth Science Systems, LLC and you, the Customer. By installing this software, you accept all the terms and conditions of this agreement.
! "# balance of the Agreement, which shall remain valid and enforceable according to its terms. Earth Science Systems, LLC 11485 W. I-70 Frontage Rd.; Unit B Wheat Ridge, CO 80033 USA Copyright Earth Science Systems, LLC. 2018-2020 all rights reserved. EssGPR4LoggingApp is a registered trademark of Earth Science Systems, LLC. EssGpr4LoggingApp has been bundled with open source software as listed below. Notable bundled projects include: Python, Qt, VTK [BSD], and HDF5.
