发明名称 |
Sensor control circuit and sensor |
摘要 |
A sensor control circuit for controlling a sensor unit for measuring a physical value includes a timing controller which selects periodically one or more sensor units among multiple sensor units and converts an output signal from the sensor unit to a continuous serial input signal, an oscillator which receives the serial input signal input by the controller and outputs a frequency signal corresponding to the output signal detected by the sensor unit, a counter which counts for a predetermined duration a number of pulses of the frequency signal output from the oscillator, a data converter which converts the number of pulses to voltage data and outputs the data, and an RLC selector which inputs to the converter information indicating a characteristic value on which the number of pulses is based. The characteristic value is resistance, inductance or electrostatic capacitance. The sensor units measure physical values, respectively.
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申请公布号 |
US8573842(B2) |
申请公布日期 |
2013.11.05 |
申请号 |
US201113012322 |
申请日期 |
2011.01.24 |
申请人 |
SHAO ZHENHUA;KELLER CHRISTOPHER LEE;ITO MASATAKA;WANG DONGDONG;IBIDEN CO., LTD. |
发明人 |
SHAO ZHENHUA;KELLER CHRISTOPHER LEE;ITO MASATAKA;WANG DONGDONG |
分类号 |
G01K7/16;G01K7/34;G01N25/12 |
主分类号 |
G01K7/16 |
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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