Low-power sensor node for the detection of methane and propane

IF 0.8 Q4 INSTRUMENTS & INSTRUMENTATION

Journal of Sensors and Sensor Systems Pub Date : 2021-07-26 DOI:10.5194/jsss-10-185-2021

B. Bierer, D. Grgic, O. Yurchenko, L. Engel, H. Pernau, M. Jägle, L. Reindl, J. Wöllenstein

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引用次数: 3

Abstract

Abstract. The detection of flammable gases is necessary to avoid explosive atmospheres. For this reason, low-cost pellistors are frequently used. However, such commercial pellistors require an operation temperature of 450 ∘C or more for the detection of methane and a correspondingly high power consumption. We present a novel wireless low-power catalytic gas sensor system based on non-precious metal catalyst for the detection of methane and propane operated at 350 ∘C. The combination of a microelectromechanical system (MEMS)-based sensor with a low-power radio system provides the opportunity to monitor complex infrastructure without using a power grid as power supply. The sensor system has been characterised extensively under the exposure to methane and propane at concentrations between 2000 and 8000 ppm, as these gases are the common test gases for pellistors in industry. Methane is the main component of natural gas; propane is an important component of liquified petroleum gas (LPG). In addition, the influence of changes in humidity on the sensor response to methane was examined in more detail. Due to the planned operation of the sensor and radio system in different application scenarios, short (3 s) and long (60 s) sampling rates were used for investigations.

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用于检测甲烷和丙烷的低功率传感器节点

摘要为了避免爆炸性环境，有必要检测易燃气体。因此，经常使用低成本的晶闸管。然而，这种商用晶闸管需要450的操作温度 ∘C或更高，用于检测甲烷和相应的高功耗。我们提出了一种基于非贵金属催化剂的新型无线低功率催化气体传感器系统，用于检测350℃下的甲烷和丙烷 ∘C.基于微机电系统（MEMS）的传感器与低功率无线电系统的结合提供了在不使用电网作为电源的情况下监测复杂基础设施的机会。传感器系统在暴露于浓度在2000至8000之间的甲烷和丙烷的情况下进行了广泛的表征 ppm，因为这些气体是工业中用于晶闸管的常见测试气体。甲烷是天然气的主要成分；丙烷是液化石油气的重要组成部分。此外，更详细地研究了湿度变化对传感器对甲烷响应的影响。由于传感器和无线电系统在不同应用场景中的计划操作，短（3 s）和长（60 s）抽样率用于调查。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sensors and Sensor Systems INSTRUMENTS & INSTRUMENTATION-

CiteScore

2.30

自引率

10.00%

发文量

审稿时长

23 weeks

期刊介绍： Journal of Sensors and Sensor Systems (JSSS) is an international open-access journal dedicated to science, application, and advancement of sensors and sensors as part of measurement systems. The emphasis is on sensor principles and phenomena, measuring systems, sensor technologies, and applications. The goal of JSSS is to provide a platform for scientists and professionals in academia – as well as for developers, engineers, and users – to discuss new developments and advancements in sensors and sensor systems.