Open AccessDesign of an anti-interference multi parameter sensor
Author(s) -
John A. Stankovic,
Ziliang Zhang,
Qiwei Li
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1920/1/012057
Subject(s) - interference (communication) , reliability (semiconductor) , electromagnetic interference , filter (signal processing) , interference filter , electronic engineering , computer science , materials science , engineering , electrical engineering , optoelectronics , physics , telecommunications , wavelength , channel (broadcasting) , power (physics) , quantum mechanics
Aiming at the shortcomings of single function, easy to be affected by underground background gas and weak anti-interference of current mining environment parameter sensor, an environment multi parameter sensor is designed, which can simultaneously detect three parameters of methane, carbon monoxide and temperature in the environment. The interference of background gas is eliminated by optical identification method, and the reliability of temperature detection is realized by thermal resistance isolation module. At the same time, the filter circuit of the sensor is optimized, the interference suppression frequency band of the filter is expanded, the anti electromagnetic interference ability of the sensor is improved, and the problem of false alarm caused by the interference of large-scale frequency conversion equipment on the sensor is solved. The experimental results show that the sensor has strong anti-interference and high reliability.