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| # | Post Title | Result Info | Date | User | Forum |
| Channel remapping in SGOS | 7 Relevance | 3 years ago | Gretchen Schmauder | Software | |
| Channel Remapping Channel remapping allows you to change: the order of channels on each analog spread cable that connects to the Geode reorder the Geode Boxes. You would use this option if your cables were wired opposite to the default order normally used in Geometrics wiring, if you wished to turn your line around to have the low channels at the opposite end, or if your cables had a wiring error. Channel remapping is also often necessary when using more that a single network cable. Default cable wiring of Geometrics seismographs Default order is defined as the natural electrical order in which channels are oriented when the system first powers up before remapping. Refer to Section 3 under Connector Wiring that discusses standard wiring configurations. You may have requested a custom wiring configuration from Geometrics. If you are confused about your wiring, contact the factory and refer to the serial number and job number. Geode cables are typically wired in a ‘high-side configuration’, meaning that the Geode connects closest to the highest numbered channel on the analog cable. The 149 figure above shows this configuration for a single Box system, with 24 channels. Multiple Geodes The following diagram shows a default single digital line (one network card) system with 3 Geodes. Note that Geode one is always closest to the controller in a default configuration. Multiple Network Lines The next diagram below shows a default configuration with two digital lines (two network cards) with the controller positioned in the middle. Line 1 is on the left and line 2 is on the right. One might use two lines to increase data throughput to reduce time between shots. Like the configuration above, the Geodes are numbered starting closest to the controller. The seismic controller software labels all of the channels contiguously even though they are on two separate digital lines. However, if the lines are collinear, the first line will have the channels ordered backwards. This can be easily rectified with the remapping feature. There are two ways of remapping channels: automatic mode and manual mode. Automatic mode settings are listed on the top of the remapping dialog Box, and manual mode on the bottom. Automatic Channel Remapping Automatic channel remapping allows you to reverse either the order of the Geodes on the line, or reverse the order of the channels on the spread cable. The above diagram shows the result after both channels and Geodes have been reversed, renumbering the line so that low channels start on the left hand side and increase towards the right. In the dialog Box, the automatic remapping Boxes referencing line 2 remain unchecked, since the default orientation on line two was correct. Manual Channel Remapping Channels can be remapped on an individual basis using the Manual Map Mode. Select the appropriate check Box, and enter the order in which you would like the channels that differs from the default order. You can specify individual channels separated by a comma (1, 3, 4, 6 etc) or a range of channels (1-13, 24-14 etc). For example, if you wanted the channels ordered backwards on a 24-channel system, you would enter 24-1. If you wished to reverse the order of channels 1- 12 in a 24 channel system, you would type 12-1, 13-24. Other examples are shown opposite, and are available by pressing the See Examples button on the remapping Menu. | |||||
| How do you convert a Geode from 2D to 3D use? | 6 Relevance | 3 years ago | Gretchen Schmauder | Hardware | |
| 1. Hook up Geode in normal configuration to computer Ethernet Box. 2. Select Start New Survey. 3. Uncheck Line Tap. 4. Uncheck Aux. 5. Select YES to all pop up Menus. 6. Locate lower left corner Menu: Seismodule List Window. 7. Note what current loader version under LDVER column of table in Seismodule List Window. (Ex. 2.729) 8. In order to change the LDVER, you must first set up the table in column F from N/A to X by doing the following: 9. Select System pull down Menu from the upper task bar. 10. Select Test. 11. Select Update System Board Bios. 12. Select I Agree. 13. Select Browse. 14. To set up table to enable loader version update (LDVER) select the file: GEODEFOR3D-1.0.exe. 15. Select Open. 16. Select Start Burning. 17. Select Yes. 18. Cycle power or shut down controller by using the software. 19. Restart the Geode. 20. Repeat necessary steps to get to Seismodule List Window. 21. Verify value in column is now X. 22. Select System pull down Menu from the upper task bar. 23. Select Test. 24. Select Update System Board Bios. 25. Select I Agree. 26. Select Browse. 27. Select from Flash Update File Flash3_703&2_42.exe. 28. Select Start Burning. 29. Select Yes. 30. Verify Power LED light on Geode now blinks 3 seconds on 1 second off. 31. Select OK. 32. Cycle power or shut down controller by using the software. | |||||
| Sensor box SD card | 5 Relevance | 2 years ago | Andre Santos | G-864 | |
| I was doing a survey, and the tablet lost connection with the sensor, with no data being saved to the tablet. So I took the SD card of the sensor Box, hoping that the data was kept there at least as a backup before the survey ended and data was completely transferred to the tablet. But there is nothing on the SD card. It is empty instead of having a LOST.DIR folder that is also empty.So, my question is, what is the sensor Box SD card for?Second, is there a way to prevent tablet disconnection from the sensor WIFI (which happens frequently) and backup data when this happens? | |||||
| Integrating log data in SeisImager (SPT, DCP, N-Value, Soil Logs) | 5 Relevance | 1 year ago | Kolby Pedrie | SeisImager Software | |
| The Drawing Tool Menu provides functionality for integrating log file datasets—such as N-value, boring, soil, and DCP logs—with velocity profiles. Below is an example of a boring data log .txt file that includes a soil column: 0.45 8 1.45 8 2.45 1 3.45 5 4.45 5 5.45 31 6.45 21 7.45 23 8.45 31 9.45 22 10.45 8 11.45 11 12.45 12 13.45 8 14.45 3 15.45 32 16.45 33 17.45 42 4.9 C Clay 17.45 G Gravel Log files can be loaded with or without headers. To load a log file, navigate to the Drawing Tool Menu. After loading, use the Select Tool (represented by the arrow icon in the top toolbar) to interact with the objects in the plot. Attachment : image018.png The Select Tool allows you to select and edit objects such as logs. To modify a log, double-click near the base of the comment line associated with the log. A configuration Menu will appear, where you can specify the data type—N-value, Line, or Soil Column—and adjust axis settings and labels as needed. | |||||
| Internal QA/QC Performance Testing for the Geode Seismograph | 4 Relevance | 3 years ago | Gretchen Schmauder | Hardware | |
| Geodes do have an option to have a factory installed oscillator board at extra cost that is used to test the electronics in the Geode. These are not normally installed for most of our users. Users do have the option to run geophone tests using the standard equipped Geode Seismograph that can run line continuity and geophone tests. This can be accessed from the system->tests->Run Geophone/Line tests. Oscillator boards are typically installed during purchase. Fewer than 5% of the customers purchase that option, that level of QC is typically not necessary. For more information please read the test Box manual. We no longer supply the Test Box to external customers. A description of how to run the tests if you use the test Box or if you use the internal oscillators is described in Section 2.11.3.1 RUN INSTRUMENT TESTS (OPTIONAL ADD-ON FEATURE) of the manual. The latest standard Geode Operations Manual has more information. You can run the tests outlined in the Geode Operations Manual to detect the bad geophones and spread cables. If you require a calibration certificate for your Geode please consult our Support Note. All Geophysical surveys require interpretation given limited understanding of the site, data from equipment, and ground truthing. Any interpretation provided is the best that can be provided according to the geophysical expertise and experience of the geophysicist. | |||||
| RE: Sensor box SD card | 4 Relevance | 2 years ago | Andre Santos | G-864 | |
| Thank you. No, I am asking about the micro SD card on the Box board. | |||||
| How to switch the operating mode for SuperMag (LCS100S) MFAM? | 3 Relevance | 3 years ago | Gretchen Schmauder | Hardware | |
| Detailed instructions for changing the operating mode of the SuperMag(LCS100S) MFAM through the SPI can be found in the Module User Guide, located in the USB drive shipped with the product. The operating mode can be changed through the MagViewMFAM software (software installation is also in the USB drive). Use the MagViewMFAM to connect to the MFAM. After startup, the "Run Mode" indicates the current operating modes. To change the operating modes, choose "Run Mode" in the "Command Menu" and then select a different mode in the drop-down Menu. Click "Send Command" button to change to the selected mode. To set the current modes as the default startup operating modes, select "Save Settings" and click "Send Command". Power cycle and make sure that the default startup operating modes have been saved. | |||||
| Calculate the "True Amplitude" for waves/vibrations measured on a Geode Seismograph | 3 Relevance | 3 years ago | Gretchen Schmauder | Application | |
| You can use the tape.exe application that was installed on your computer when you installed the Seismodule program. Read in the SEG-file, convert it to ASCII by selecting the File Menu and Convert to ASCII. Check the Box to convert to mV. Once you have converted the waveform to ASCII voltages, you can multiply by the sensitivity of the geophone to recover true ground amplitudes. Download Tape Reader. IMPORTANT - Be sure to back up your data files before running this program. | |||||
| Is it possible to extend the cables between the MFAM sensors and module? | 3 Relevance | 2 years ago | Gretchen Schmauder | Hardware | |
| The cables between the sensors and the MFAM module are flexible circuit boards, and the length is limited to 20 inches. It is possible to remove the MFAM module from the Development kit Box and then reconnect it using a ribbon cable. That would allow you to extend the MFAM module and sensors away from the Dev Kit Box. Our engineers have tested it to 4 meters. Below are some details about the ribbon cable. The connector on the MFAM unit is Samtec FSH-110-04-F-DH. Its mating connector is Samtec SFMH-110-02-L-D-WT. The easiest option for an extender cable between the MFAM and the Dev Kit is a pair of cable assemblies from Samtec www.samtec.com which has male/female mass terminate connectors put onto a ribbon cable. These connectors plug directly into the MFAM I/O connector and also into the Development Kit. We are comfortable with lengths to 10 feet total. The samtec P/N for this cable is: FFMD-10-T-60.00-01-F-N The ‘60.00’ number specifies the cable length in inches (which equals 5 feet). We have found that there is generally a 2-4 week lead, time since they are made to order and not an off-the-shelf part. (There is another solution as well if you want to make adapter boards at each end (Dev Kit and MFAM). The exact Samtec mates for the MFAM / Dev Kit connectors are made in PCB mount connectors only, so if you make simple small adapter board to adapt the samtec connector to another connector of your choice. We've done this with ExpressPCB which is fast and inexpensive. A board set from ExpressPCB is about $70 including shipping. Our Engineering Team has a design and parts list they can send you if you're interested in going this route.) | |||||
| Intermittent Issue Diagnosis | 3 Relevance | 3 years ago | Rui Zhang | Hardware | |
| General information The most common symptoms of intermittent connection issues are shown below: D_CY shows a background decay signal is either much higher than normal, and/or C_CY is a flat line (doesn’t decay). Figure 1 Intermittent connection issue. Where is the failure occurring? The two most common places where intermittent issues occur are at the two ends of the Rx cable: the joint between the Rx cable and the Cart and the joint between the Rx cable and the EDA Box (orange Box). Now we need to identify which joint has the intermittent issue. Set up the MM2x2 in DAM mode. Collect DAM data while keeping the Cart stationary but tapping one joint. Collect another DAM data while tapping the other joint. Analyze the DAM data by plotting the “Monostatic_5” for all 12 Rx channels in Geosoft. The channels having intermittent issues will appear much noisier. If you have MatLab software, you can download the MatLab code to analyze the DAM data. Example plots are shown below. It is obvious that “ZA” channel has the intermittent issue in Figure 2 and “XB” channel is open in Figure 3 (very flat line, no noise at all). Click here to download the code: Attachment : Intermittent_noise_full.zip . If both DAM and IVS data have the same problematic channel(s), we are confident that the intermittent issues observed in IVS data are repeated in DAM data, and by tapping at that location, we are able to identify the intermittent joint. Figure 2 Intermittent "ZA" channel. Figure 3 Open "XB" channel. What to do next? Disconnect the problematic joint and clean the connectors on both sides thoroughly (using an acid brush and a can of compressed air). Reconnect and try the tapping method again. If the problem goes away (no more noisy channels), the intermittent issue is likely caused by dust. If cleaning doesn’t fix the problem, swap out the Rx cable and repeat the tapping method. If the problem goes away, it is likely caused by a bad Rx cable. If there is another set of EDA and Cart available, swap out the EDA and the Cart to identify the problematic part. If not, use the tapping location to identify the problematic part. Fill out the RMA form at . If it is the Cart, send in the whole system for inspection/repair. You can contact Geometrics for MM2x2 rental if you need to continue your work during the down time. If it is the EDA, we recommend sending in the EDA only. It will save your repair time since it is much faster to unpack/pack/ship the EDA than the whole system. You can contact Geometrics for EDA rental if you need to continue your work during the down time. Warning Please note that this tapping method should ONLY be tried when intermittent issues have been observed in IVS tests. It is NOT recommended to use it as a daily QC test because it does put extra stress on connectors and likely leads to a shortened connector lifetime if applied too often. | |||||
| RE: Sensor box SD card | 3 Relevance | 2 years ago | Rui Zhang | G-864 | |
| @aldsantos I see. Please try it anyway next time in the field. Let us know if loss of connection still occurs after you have selected to stay connected to the G-864 WIFI. Thanks! | |||||
| RE: Sensor box SD card | 3 Relevance | 2 years ago | Rui Zhang | G-864 | |
| @aldsantos For the current version of the embedded software, some raw data was first stored in the microSD and then transferred to the tablet. Data logging stops once the WIFI connection is lost. In the future, if we have an easier way to access the microSD, we may use it as a backup. | |||||
| RE: Sensor box SD card | 3 Relevance | 2 years ago | Andre Santos | G-864 | |
| Regarding the loss of connection, I was in the middle of the field, far away from internet/WIFI connection. Indeed, it stopped collecting data. | |||||
| RE: Sensor box SD card | 3 Relevance | 2 years ago | Rui Zhang | G-864 | |
| Regarding your SD card question, you must mean the USB drive, right? The drive is not for storing mag data but for running the embedded software. | |||||
| RE: Sensor box SD card | 3 Relevance | 2 years ago | Rui Zhang | G-864 | |
| The reason why the tablet lost connection with the sensor is because the G-864 WIFI has no internet access. The tablet will try to switch to another WIFI with internet access and disconnect from the G-864. To prevent this from happening, in the warning window of the tablet, select "don't ask again for this network" and click "Yes". Please remember to do this after you have used the tablet to access the internet. | |||||
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