Skip to end of metadata
Go to start of metadata

You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 15 Next »

Table of Contents



IMS graphic user interface for WRMSL.

Welcome

This guide is designed to help the scientists and technicians use the Whole Round Multisensor Logger (WRMSL) and upload the data to LIMS. For detailed information on the WRMSL please refer to the Whole Round Multisensor Logger User Guide.

Processing Samples

Running Cores on the WRMSL

  1. Open IMS Main from the WRMSL computer desktop (Figure 1).
  2. The program will initialize all of the instruments and then display the main user interface (Figure 2).
  3. To set the measurement parameters for each of the instruments select DAQ: Measurement Editor. Pro Tip! Always set measurement intervals as whole number divisors of the distance between the sensors (30 cm), or the movement routine will be highly inefficient!
  4. In the Measurement Editor window, select the instrument you wish to configure and then click in the Instrument Parameters window (Figure 3).
  5. In the DAQ Parameters window the user may alter the settings for each instrument and may set the instrument to online or offline mode. Select OK. The changes will be written to the configuration file. (Note: If you hit return it selects the CANCEL CHANGES button. You must click on the OK ACCEPT CHANGES button to apply changes.)
    1. GRA Settings include: Measurement Interval, Edge, Acquire Time, and Setting the Instrument Online or Offline and Setting the Control of the measurements On or OFF.
    2. MS Settings include: Measurement Interval, Edge, Number of Points to Average, and Setting the Instrument Online or Offline and Control and Drift Correct.
    3. PWL Settings include: Measurement Interval, Edge, Number of Waveforms to Stack, Voltage Target, and Setting the Instrument Online or Offline 
  6. Select Finished in the Measurement Editor window. Check that the System Status and DAQ Parameters displayed on the main interface window (left side of page) have updated to the values specified.
  7. Set the water core pusher ID by selecting DAQ: Pusher Setup. In the window, scan the water core label. When the user selects Accept the ID of the water core will be written to the configuration file.
  8. To begin measuring a core, place a section on the track. Top should be placed nearest the sensors and bottom should be nearest the pusher.
  9. Select Start from the Main Interface window.
  10. Enter the section label identification in the Whole Round MSL Section Information window (Figure 4). This is typically done using the bar code scanner, but may be done manually or by searching the LIMS database. If scanning the label, make sure the cursor is in the SCAN box before scanning the label.
  11. Select Measure. The pusher will move the core through the instruments and return to its home position once it reaches its furthest limits.
    1. During a measurement the user may adjust the threshold, number of stacked measurements, and the extent to which the Exlar opens and closes for the P-wave measurements.
  12. When the first section is finished the Whole Round MSL Section Information window will appear again.
    1. If there are more sections to be measure place the next section on the track, scan the label, and press measure. Repeat for all sections of the core.
    2. For best results it is recommended that sections be measured IN ORDER. If it is not possible to measure the sections in order it is recommended that a pusher core is used after each section.
  13. Once all of the sections from a core have been measured, place the water core standard on the track and press Pusher End Sequence. The standard will push the final section through the sensors and a standard measurement will be made on each sensor.
  14. The files will be written to: C:\data\IN.



Figure 1. WRMSL Desktop Icon


Figure 2. Main WRMSL User Interface Window with GRA, MS, and PWL displays.



Figure 3.  Measurement Editor Window 



Figure 4.  Whole Round MSL Section Information window





Calibration Procedures

Calibrations should regularly be performed for each of the sensors. Calibration utilities are available under Instruments.

GRA Calibration

  1. Select Instruments: GRA Calibrate and the GRA Calibration window will open (Figure 5).
  2. Place the GRA standard (standard with the telescoped aluminum in Figure 6) on the track with the top (end with black tape) nearest the sensors.The aluminum must be level. A level line is drawn on the bottom of the core. Make sure it is aligned with the pusher as the core begins moving.
  3. Press OK. The pusher will move the core into the GRA sensor range.
  4. The data points will be visible on the GRA Calibration graph. When the calibration measurements have completed, the window will display a density check. You may choose to apply or cancel the values at this time (Figure 7).
  5. After you select apply the data will be written to the configuration file.
  6. GRA Calibration is complete.


Figure 5. GRA Calibration window.


Figure 6. GRA Standard with telescoped aluminum at the top of the standard



Figure 7. GRA Calibration after data acquisition

PWL Calibration

  1. In the Instrument menu, select PWL: Calibration and the PWL Calibration Utility window will open (Figure 8).

  2. Follow the steps on the right side of the PWL Calibration Utility window. Note: Liner Delay correction is excluded when using the Aluminum standard.

  3. Place the aluminum standard between the transducers. Close the transducers. Aluminum standard width is 76.2mm. Select Laser Offset Correction. Confirm that the Distance matches the standard's width.

  4.  Enter the Aluminum Standard velocity. 6295.00 m/s. Select Determine System Delay. Verify that the Velocity matches the Aluminum Standard's velocity.

  5. Open transducers. Remove Aluminum Standard.

  6. Position the Water Standard between transducers. Close transducers. Turn on Liner Delay. Enter the water's temperature (room temperature) under Temperature. Liner Thickness is 0.275 cm. Click Determine Liner Velocity. Verify that the water velocity is correct. Use the calculated H2O velocity based on water temperature (1481 m/s at 20 oC).

  7. Accept Changes.
  8. Open transducers and remove the water standard.


Figure 8. PWave Calibration Utility.




Adjusting Measurement Parameters for the Waveform

You can use the controls Requested Stack and Threshold in PWL Calibration Utility window to adjust the measurement parameters to obtain a better waveform (Figure 8). These parameters may need to be adjusted if the section material has changed.

Requested Stack: Sets the number of waveforms to average to increase the signal-to-noise ratio. Note: stack should not be any lower than 50.
Threshold: A millivolt value is used to find the first arrival peak. For more information on the first arrival determination, see Appendix 1 in WRMSL User Guide. Note: Threshold bar should be above 10m.


Uploading data To Lims

To up load the data into LIMS, MegaUploadaTron (MUT) must be running. If not already started do the following:

  1. On the desktop click the MUT icon on the task bar (Figure 9).
  2. The LIMS Uploader window will open (Figure 10).
  3. Check Automatic Upload in the lower right hand corner and click minimize. MUT will run in background.

Figure 9. MUT Icon.

Figure 10. LIMS Uploader Window


Credits

This document originated from Word document Whole Round Multi Sensor Logger (WRMSL) by B. Novak, edited by T. Cobb and S. Frazier. Credits for subsequent changes to this document are given in the page history.

Archived Versions

  • WRMSL Quick Start Guide (2013 vintage): Physical Properties Whole Round Multi Sensor Logger (WRMSL) Quick Start Guide 



  • No labels