Design of Light Trigger Electronic Manometer
Wen Xingx · Chuangan jishu xuebao · 2014
For current shell capacitive electronic manometer,the shell capacitance is easily disturbed during assembling in internal trigger mode. This issue may cause error trigger during measuring. In order to analyze the cannon breech pressure,there is a need for multi-point pressure test.However,the time is difficult to unity in internal trigger mode.We designed a reliable external trigger manometer which is based on the explosion field optical signals.In this design,We transform the end cover of manometer,design a reliable light trigger circuit.We use the explosion field light as the trigger signal,gather the processed signal which is related to the cannon breech pressure to store in the MCU flash.signal will be related to the pressure signal processed by the electrical signals are collected and stored in the microcontroller in the flash.The simulation experiments show that the light trigger pressure measuring device can trigger accurately.So this design provides a feasible scheme for the acquisition of multipoint pressure signal in cannon breech.