发明名称 |
ALCOHOL CONCENTRATION SENSOR TESTING APPARATUS |
摘要 |
An apparatus for testing an alcohol concentration sensor used in measuring an alcohol concentration of a fluid containing alcohol. The alcohol concentration sensor includes a capacitive probe having a capacity dependent upon the alcohol concentration of the fluid, and a circuit sensitive to the capacity of the capacitive probe for producing an output signal indicative of a sensed alcohol concentration. The apparatus comprises a plurality of capacitors having different capacities each corresponding to a predetermined alcohol concentration. A selected one of the capacitors is connected in parallel with the capacitive probe. When the selected capacitor is connected with the capacitive probe, the output signal is read.
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申请公布号 |
US5205151(A) |
申请公布日期 |
1993.04.27 |
申请号 |
US19910703091 |
申请日期 |
1991.05.22 |
申请人 |
JAPAN ELECTRONIC CONTROL SYSTEMS CO., LTD. |
发明人 |
SHIMAMURA, MASAHIKO;KOBOYASHI, KAZUMITSU;KAMIOKA, HIDEKI |
分类号 |
G01N27/22;G01N33/28;G01R27/26 |
主分类号 |
G01N27/22 |
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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