著者

大田 明博 臼田 孝 中野 英俊

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.123, no.6, pp.203-208, 2003 (Released:2003-09-01)

参考文献数

8

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The calibration procedures of charge amplifier (CA) on vibration acceleration standard are described. The calibration principle and fundamental calibration procedures are explained in detail. Typical commercial CAs (3 types, 4 CAs) are evaluated in terms of the frequency sensitivity gain, the long-term stability, the linearity for input charge, the linearity for gain setting and the effects of environmental conditions (temperature and humidity). The maximum discrepancy in the sensitivity gain is approximately 4 % among the tested CAs. A relative sensitivity gain difference of 1.5 % still remains when CAs of the same type are compared. It should be mentioned that a difference of 1.5 % is not negligible. Such a large difference has not been commonly observed up to the present time. Based on these experimental results, the technical guides for charge amplifier calibration are summarized.