Reaction mechanism of electrochemistry H2S sensitive element is analyzed

a design scheme of mine-used H2S sensor is proposed.The sensor uses C8051F021 single chip microcomputer as core

it can collect and compensate output signals transmitted by H2S sensitive element to LED nixie tube for displaying

and real-time transmit to underground monitoring substation through RS-485 or frequency mode.The sensor is widely used in safety monitoring system for mine.The field application shows that the sensor has high measurerment precision

good stability and reliability

and strong anti-interference ability.