Title: Fire alarm method and device using gas sensor
Application Number: 98101328 Application Date: 1998.04.06
Publication Number: 1194421 Publication Date: 1998.09.30
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G08B17/10,G08B17/117
Applicant(s) Name: Ma Jun Address: 100021
Inventor(s) Name:
Attorney & Agent: zhu liguang
Abstract:
     The present invention relates to the method of utilizing gas sensor in detecting fire and the fire detecting device utilizing gas sensor. The said method features that the gas sensor in fire alarm changes its resistance when detecting combustion product gas and produces electric signal driving the alarm. The said fire detecting device consists of voltage stabilizer, gas sensor, comparator circuit and driver and alarm circuit, and it has simple structure and high reliability.
Time: 10
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