Campbell Scientific CDM-VW300 Series Dynamic Vibrating-Wire Analyzer System User Manual
Page 87
Appendix E. Calculating Measurement Error
or
∆s = GfN / 500
E.5 Example Error Calculation: DGSI Piezometer
52611099
For Durham Geo Slope Indicator piezometer 52611099, when using gage
factors A, B, and C, the formula for pressure, P, derived from frequency is
given as:
P = Af
2
+ Bf + C
The resulting noise (effective resolution) formula is then:
∆P = (2Af + B)N
or
∆P = 2AfN + BN
E-3
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