Naoko Kasai

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In this study, a measurement reliability of commercial laser vibrometer with analogue demodulator is investigated for establishment of traceability system for laser vibrometer in vibration acceleration standard. As a result, a large amount of measurement deviation due to characteristics of analogue demodulator is confirmed, and in order to reduce such(More)
High-frequency characteristic of a TVC-input circuit becomes dominant factor in the AC-DC transfer difference at frequencies higher than 100 kHz. In order to evaluate the high-frequency characteristics of TC modules up to 1 MHz, a High-Frequency-standard TVC (HF-TVC) has been developed at AIST, in collaboration with Nikkohm Co. Ltd. The HF-TVC is designed(More)
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