An Acoustothermic Hydrogen Sensor
- 作者: Anisimkin V.1, Kuznetsova A.1
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隶属关系:
- Kotel’nikov Institute of Radio Engineering and Electronics
- 期: 卷 62, 编号 12 (2017)
- 页面: 1431-1433
- 栏目: Novel Radio Systems and Elements
- URL: https://journals.rcsi.science/1064-2269/article/view/199078
- DOI: https://doi.org/10.1134/S1064226917120026
- ID: 199078
如何引用文章
详细
It has been revealed in experiments that, based on the thermal influence of gases on the surface acoustic wave propagating in a hot acoustic transmission line, it is possible to efficiently detection hydrogen without using gas-sensible coatings. It order to increase the sensitivity, the acoustic transmission line of the sensor is made of a piezoelectric crystal of В12SiO20 with large temperature coefficient of delay and the total phase shift and delay of the wave between radiating and receiving transducers are increased owing to propagation of this wave through two cylindrical roundings. When concentrations are in a range of 0.1–3.2%, the acoustothermic response to hydrogen by an order of magnitude exceeds responses to O2, CH4, NO, and water vapor of the same concentrations. Owing to the absence of a gas-sensible coating, the long-term stability of detection is high and is less than ±2% during six months.
作者简介
V. Anisimkin
Kotel’nikov Institute of Radio Engineering and Electronics
编辑信件的主要联系方式.
Email: anis@cplire.ru
俄罗斯联邦, Moscow, 125009
A. Kuznetsova
Kotel’nikov Institute of Radio Engineering and Electronics
Email: anis@cplire.ru
俄罗斯联邦, Moscow, 125009