642 較正の重要性

概要

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This paper describes the importance of periodic calibration of transducers for vibration measurement. The success of experimental modal analysis is highly dependent on obtaining high quality FRFs so that a transducer's sensitivity is a very important quantity, which needs to be periodically checked in order to certify that the transducer is functioning properly. However, the authors found that accelerometers and/or force transducers having changed their sensitivities are sometimes used for measuring FRFs in practice actually at some organizations without calibration. According to the fact, the authors are afraid that there will be much more organizations using transducers under such an improper condition. The authors show the examples of a concrete investigation about impact hammers, and make it clear that the calibration of transducers is very important in vibration measurements.
一般社団法人日本機械学会の論文
2002-09-13