A propane gas detector was built based on the semiconductor nickel antimonate oxide (NiSb₂O₆) by means of an analog electronic circuit. The gas detector was designed for monitoring atmospheres where the leakage of propane gas could possibly occur. The prototype’s construction methodology is presented in 5 stages: (1) synthesis of NiSb₂O₆ oxide powders, (2) characterization of the powders by XRD and TEM, (3) manufacture and electrical characterization of the chemical gas sensor, (4) design of the analog circuit based on the electrical response of the gas sensor, and (5) functionality tests. The gas detector was built at low cost and showed excellent functionality. The operating conditions were as follows: 200°C, gas concentration of 5 ppm, electronic circuit gain of 5, and sensor sensitivity of 0.41.

中文翻译：

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用作丙烷检漏仪的气体传感器

基于半导体锑酸镍氧化物（NiSb ₂ O ₆），通过模拟电子电路构建了丙烷气体检测器。气体检测器设计用于监测可能发生丙烷气体泄漏的气氛。该原型的构建方法分为五个阶段：（1）合成NiSb ₂ O ₆氧化物粉末；（2）通过XRD和TEM表征粉末；（3）化学气体传感器的制造和电气特性；（4）基于气体传感器电响应的模拟电路设计；以及（5）功能测试。气体检测仪的造价低廉，并具有出色的功能。操作条件如下：200°C，气体浓度为5 ppm，电子电路增益为5，传感器灵敏度为0.41。