发明名称 |
Gas sensing apparatus and method |
摘要 |
A gas sensing apparatus is disclosed including a gas sensing device that is self-heated due to an applied voltage, whose resistance variation amount is varied to thereby sense gas; a voltage supply for variably supplying a voltage to the gas sensing device; a current detector for detecting the current flowing through the gas sensing device thereby generating a current-voltage characteristic for the gas sensing apparatus under the effect of a given gas exposure; and a control and judgement portion for controlling the voltage supply to control a variation value of a voltage supplied to the gas sensing device and to determine the kind and density of a gas in an ambient atmosphere, using current-voltage characteristic reference data.
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申请公布号 |
US5627305(A) |
申请公布日期 |
1997.05.06 |
申请号 |
US19960605889 |
申请日期 |
1996.02.23 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
YUN, DONG H.;KWON, CHUL H.;LEE, KYUCHUNG;HONG, HYUNG K.;PARK, HYEON S.;SHIN, HYUN W.;KIM, SUNG T. |
分类号 |
G01N27/00;G01N27/12;G01N33/00;(IPC1-7):G01N27/04;G01N31/12;G01R3/00 |
主分类号 |
G01N27/00 |
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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