发明名称 |
RESONANCE CIRCUIT USED FOR MEASUREMENT DEVICE AND MEASUREMENT DEVICE |
摘要 |
A resonance circuit is configured to receive a pulse density signal obtained by ӣ-modulating an analog displacement signal by a ӣ modulator and a multi-bit signal obtained from the pulse density signal and to generate an excitation signal based on the pulse density signal and the multi-bit signal. The resonance circuit includes an amplification factor controller configured to set an amplification factor depending on a vibration signal obtained from the multi-bit signal, a multiplier configured to amplify a level of the pulse density signal by the amplification factor, and a circuit group configured to generate the excitation signal based on a pulse density signal obtained by further ӣ-modulating an output of the multiplier. The amplification factor controller is configured to set the amplification factor using a proportional control and an integral control based a difference between an amplitude signal obtained from the vibration signal and a target amplitude value. |
申请公布号 |
EP3054270(A1) |
申请公布日期 |
2016.08.10 |
申请号 |
EP20160154304 |
申请日期 |
2016.02.04 |
申请人 |
YOKOGAWA ELECTRIC CORPORATION |
发明人 |
IKADAI, YUKI;WADA, MASAMI |
分类号 |
G01F1/84;G01N9/00;G01N9/32 |
主分类号 |
G01F1/84 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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