Campbell Scientific ST350 Strain Transducer for Structural Testing - Manual (Page 43)

Appendix B. ST350 Accuracy Verification
Magnitude of Applied Loads:
Calibration tests should always be run up near the maximum safe linear range
of the system. This will give the required confidence that the outputs from the
transducers are indeed linear over the range of stresses of interest.
Recording Data:
It is VERY important to record the data continuously, rather than discreetly. A
qualitative review of the strain history will often be even more important than
the actual magnitude because possible electronic noise or other effects will
immediately be apparent. Furthermore, the other sensors such as load cells and
foil strain gages should all be recorded with the same equipment and at the
same sample frequency as the transducer data. This again allows for a
qualitative check to be completed.
We are confident that if the above precautions are taken, the ST350 Strain
Transducers will provide very accurate and reproducible results. If you have
any questions on the above discussion or have a lab testing "pitfall" experience
that you would like to have us investigate or think it may help other users,
please contact us.
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