发明名称 |
Capacitive sensor apparatus |
摘要 |
In a capacitive sensor apparatus, a capacitive sensor includes a plurality of physical-quantity-detection capacitors each having a movable electrode and a fixed electrode. A conversion device operates for converting an output signal of the capacitive sensor into an apparatus output signal. Each of the physical-quantity-detection capacitors is selectively connected and disconnected to and from the conversion device. A determination is made as to whether or not each of the physical-quantity-detection capacitors fails in response to the sensor output signal. When it is determined that a first one of the physical-quantity-detection capacitors fails, the first one is disconnected from the conversion device and a second one of the physical-quantity-detection capacitors is connected to the conversion device.
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申请公布号 |
US6744258(B2) |
申请公布日期 |
2004.06.01 |
申请号 |
US20020189565 |
申请日期 |
2002.07.08 |
申请人 |
DENSO CORPORATION |
发明人 |
ISHIO SEIICHIRO;SUZUKI YASUTOSHI;ITO HAJIME;MAKINO YASUAKI;OHTA NORIKAZU;SHIMAOKA KEIICHI;FUNABASHI HIROFUMI |
分类号 |
G01P15/125;G01D3/08;G01L13/06;G01R27/26;(IPC1-7):G01R31/12 |
主分类号 |
G01P15/125 |
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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