New strategy for the development of a gas sensor based on the dynamic characteristics : principle and preliminary experiment
New strategy for the development of a gas sensor based on the dynamic characteristics : principle and preliminary experiment
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基于动态特性的气体传感器开发新策略：原理与初步实验
DOI：
10.1016/0925-4005(92)80179-2
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发表时间：
1992
影响因子：
8.4
通讯作者：
K. Yoshikawa
中科院分区：
文献类型：
--
作者：
S. Nakata;Hiroko Nakamura;K. Yoshikawa
提出了一种利用陶瓷气体传感器非线性动态特性信息进行气体传感的新方法。一个正弦电压施加到一个加热器配备了SnO2气体传感器和由此产生的输出电阻进行了分析，通过快速傅立叶变换（FFT）。结果发现，高次谐波的强度表现出特征的变化，在存在不同种类的气体。
A novel method of gas sensing is proposed based on information from the non-linear dynamic property of a ceramic gas sensor. A sinusoidal voltage is applied to a heater equipped with an SnO2gas sensor and the resulting output resistance is analysed by fast Fourier transformation (FFT). It is found that the intensities of the higher harmonics exhibit characteristic changes in the presence of different kinds of gas.