发明名称 |
TUNING FORK VIBRATOR FOR ANGULAR VELOCITY SENSOR, ANGULAR VELOCITY SENSOR USING THE VIBRATOR, AND VEHICLE USING THE ANGULAR VELOCITY SENSOR |
摘要 |
The invention provides a tuning-fork type transducer for an angular-speed sensor which realizes a stable fork-driving, realizes downsizing of the angular-speed sensor, and is capable of executing control of a vehicle body with high degree of accuracy when being used under a high-temperature environment, an angular-speed sensor using this transducer, and an automotive vehicle using this angular-speed sensor. Electric charges obtained from upper electrodes (13a), (14a) provided on an arm (10b) are amplified respectively by current amplifiers (40a), (40b). The amplified signal is differentially amplified by a first differential amplifier (41), and the amplified signal is used as a monitor signal for fork-driving. An added signal obtained by adding output signals from the current amplifiers (40a), (40b) by an adder (60) is used as a signal for detecting the angular speed.
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申请公布号 |
EP1696205(A1) |
申请公布日期 |
2006.08.30 |
申请号 |
EP20050719676 |
申请日期 |
2005.03.01 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
OHUCHI, S.;YAMAMOTO, T.;AIZAWA, H. |
分类号 |
G01C19/56;G01P9/04 |
主分类号 |
G01C19/56 |
代理机构 |
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