Aiming at problems of slow-response time and low-measurement precision in traditional thermocouple

a high sensitivity UV detector is designed which can detect the released UV from flame. Through GD—708 UV sensitive tube

UV will be converted into pulse train and sent to STM32 processor by optoelectronic isolation

and output 4

20 m A current signal to control steam valve opening. The UV flame detector detects ignition and process from combustion to extinguish promptly which not only extend the life of ignition but also reduce number of false positives. The experimental results show that the device is widely used in the engineering site because of the responsive

strong anti-jamming ability and stable output

etc.