Abstract
After installation of the instrument, it is necessary that collected monitoring data are verified to ensure that the instruments and data acquisition systems are operating properly. In many cases, verifications can be carried out based on initially collected zero reading after stabilization. However, some instruments required significant poll of data to verify the accuracy and precision of monitored data. These details together with monitoring frequency, monitoring process, data processing, data verification and presentation of monitored data are presented in this chapter. Automatic real-time monitoring system and recent development of data acquisition systems and visualization software are also discussed in this chapter.
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Abbreviations
- P :
-
Pressure
- R 1 :
-
Current reading
- R 0 :
-
Initial zero reading obtained from manufacturer’s calibration sheet
- G :
-
Linear calibration factor obtained from manufacturer’s calibration sheet
- P T :
-
Temperature correction
- T 1 :
-
Current temperature
- T 0 :
-
Initial zero temperature
- K :
-
Thermal factor
- P B :
-
Barometric correction
- S 1 :
-
Current barometer
- S 0 :
-
Initial zero barometer
- F :
-
Conversion factor
- CRA:
-
Correction applied by user to account for errors along A axis
- A1:
-
1st guide reading in A axis
- A2:
-
2nd guide reading in A axis (opposite to 1st guide)
- CRB:
-
Correction applied by user to account for errors along B axis
- B1:
-
1st guide reading in B axis
- B2:
-
2nd guide reading in B axis (opposite to B1 guide)
- Dxmax:
-
Vector displacement
- a New :
-
Corrected reading in basic alpha axis
- a 1 :
-
Initial reading in alpha axis
- DELTA_A:
-
Alpha angle spiral – alpha inclinometer
- b New :
-
Corrected reading in basic beta axis (alpha +90deg)
- b 1 :
-
Initial reading in beta axis
- DELTA_B:
-
Beta angle spiral – Beta inclinometer
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Bo, M.W., Barrett, J. (2023). Monitoring, Data Processing, Data Verification and Presentation. In: Geotechnical Instrumentation and Applications. Springer, Cham. https://doi.org/10.1007/978-3-031-34275-2_6
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DOI: https://doi.org/10.1007/978-3-031-34275-2_6
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