Bulletin of Shimane Medical University

Shimane Medical University

ISSN:0387-9097

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Use this link to cite this item : https://ir.lib.shimane-u.ac.jp/32198

Bulletin of Shimane Medical University 18

1995-12-01 発行

Grimblebyのフィルター回路を利用した2相ロックイン・アンプ

Two-Phase Lock-In Amplifier Using Grimbleby's Averaging Filter Circuits

Mishima, Mitsuo

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m0020018007.pdf 474 KB

Description

A two-phase lock-in amplifier has been constructed, using Grimbleby's averaging filter switched capacitor and a PLL circuit. The band pass frequency is locked to an external frequency reference. The unit has a frequency response from 5 Hz to 1 KHz and surpasses the performance of commercial products in regard to the response to a modulated signal and the measurement rate.

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m0020018007.pdf 474 KB

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