DING En-jie, LI Xin, CHEN Chun-xu, et al. Study on operating characteristic of catalytic sensor using pulse power supply[J]. 2014, 33(12): 31-33+41. DOI: 10.13873/J.1000-9787(2014)12-0031-03.
Aiming at problem of high power consumption of catalytic sensor in coalmine gas monitoring system
a way using pulse power supply methods to improve traditional mode of power supply is proposed;operating characteristic of catalytic elements of carrier and principle of pulse power supply are analyzed;through experiment
different concentrations of CH
4
gas samples under standard
relationship of pulse frequency
pulse width and sensor sensitivity are studied.Experimental results show that compared with ordinary catalytic sensors
using pulse power supply will largely reduce power consumption and prolong life cycle of portable devices;feasibility and optimal frequency using pulsed power supply are obtained.