发明名称 |
PORTABLE GAS SENSOR AND METHOD FOR CALIBRATING THE SAME |
摘要 |
The present invention provides a portable gas sensor having a sensing material reacted with a target gas. The portable gas sensor includes a mode input unit for selecting an operation mode; a gas inhaling unit for accepting an external gas; a sensing unit for outputting a voltage value corresponding a varied resistance value of the sensing material reacted with the external gas; a first memory for storing a reference voltage value corresponding a resistance value of the sensing material reacted with a reference gas; a calibration control unit for storing a first voltage value corresponding to a resistance value of the sensing material reacted with a substitute reference gas in the first memory by substituting the reference voltage value; a target gas sensing control unit for storing a second voltage correspond to a resistance value of the sensing material reacted with the target gas into the second memory; a comparison and calculation unit for comparing and calculating the first voltage value and the second voltage value; and a display unit for displaying a concentration of the target gas calculated in the comparison and calculation unit. |
申请公布号 |
WO2004011924(A1) |
申请公布日期 |
2004.02.05 |
申请号 |
WO2003KR01518 |
申请日期 |
2003.07.29 |
申请人 |
SEJU ENGINEERING CO., LTD.;LEE, WON BAE |
发明人 |
LEE, WON BAE |
分类号 |
G01N27/407;G01N33/00;G01N33/497 |
主分类号 |
G01N27/407 |
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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