Miniaturized thermal acoustic gas sensor based on a CMOS microhotplate and MEMS microphone.
Miniaturized thermal acoustic gas sensor based on a CMOS microhotplate and MEMS microphone.
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DOI:
10.1038/s41598-022-05613-0
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发表时间:
2022-02-01
影响因子:
4.6
通讯作者:
Stanley-Marbell P
中科院分区:
文献类型:
--
作者:
Hopper R;Popa D;Udrea F;Ali SZ;Stanley-Marbell P
We present a miniaturised thermal acoustic gas sensor, fabricated using a CMOS microhotplate and MEMS microphone. The sensing mechanism is based on the detection of changes in the thermal acoustic conversion efficiency which is dependent on the physical properties of the gas. An active sensing element, consisting of a MEMS microphone, is used to detect the target gas while a reference element is used for acoustic noise compensation. Compared to current photoacoustic gas sensors, our sensor requires neither the use of gas-encapsulated microphones, nor that of optical filters. In addition, it has all the benefits of CMOS technology, including production scalability, low cost and miniaturization. Here we demonstrate its application for CO gas detection. The sensor could be used for gas leak detection, for example, in an industrial plant.
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DOI:
10.3390/s18020339
发表时间:
2018-01-25
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Burgués J;Marco S
通讯作者:
Marco S
影响因子:
3.2
作者:
Xiao, Lin;Liu, Peng;Jiang, Kaili
通讯作者:
Jiang, Kaili
影响因子:
4.3
作者:
Ali, Syed Zeeshan;De Luca, Andrea;Udrea, Florin
通讯作者:
Udrea, Florin
DOI:
10.3390/s17071520
发表时间:
2017-06-28
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Spinelle L;Gerboles M;Kok G;Persijn S;Sauerwald T
通讯作者:
Sauerwald T
影响因子:
3.4
作者:
Hu, Hanping;Wang, Yandong;Wang, Zedong
通讯作者:
Wang, Zedong