| 摘要 |
<p>A gas measurement device is provided to compensate the resistance value within a measure system using a temperature sensor in order to check the gas sensor malfunction. A gas measurement device comprises an analog detection circuit(100), a temperature sensor(200), a MCU(300) and an output unit(400). The analog detection circuit amplifies the output of the Wheatstone bridge including a nano element gas sensor. The analog detection circuit outputs the output value excepting the noise. The temperature sensor measures the ambient temperature of the gas measurement device. The temperature sensor compensates for the resistance value and amplification constant of the analog detection circuit. The MCU compares the temperature value and the reference temperature measured by the temperature sensor.</p> |
