Research Of Light Trigger Technology And Power Supply Technology On Capacitive Electronic Manometer

In order to study the distribution of the pressure inside the gun,it is necessary to carry out the multi-point test of the pressure inside the crucible.However,the internal trigger mode adopted by the current manometer is difficult to meet the conditions of simultaneous triggering of multiple manometers.In this paper,based on the capacitive electronic manometer,the triggering method is improved to light triggering to achieve the purpose of synchronous triggering.In addition,the existing manometer is powered by a polymer lithium battery.The lithium battery has low energy density,large volume,slow reaction after degeneration,and potential insecurity in use.In view of this situation,this paper studies a new type of power supply.-Super capacitor.The specific research content of this paper is as follows:The optical triggering technology was analyzed and designed from the principle and circuit implementation,and the working state of the light-triggered electronic pressure gauge was analyzed.According to the working characteristics of the light-triggered electronic load cell,the load cell is directly input into the sampling step after being triggered.Compared with the internal trigger mode,there is no cyclic sampling and negative delay phase,thereby reducing the power consumption of the system and measuring the voltage.The power consumption of the system was calculated.The capacitance and charge-discharge characteristics of the supercapacitor Eecs0hd334 h were experimentally studied,and a supercapacitor discharge circuit suitable for the manometer system was designed.The theoretical calculation and actual test of the discharge capacity of the supercapacitor are respectively carried out.The supercapacitor can provide a stable supply voltage and current to the load.Comparing the power consumption of the light-triggered manometer system,the output power of the supercapacitor can satisfy the power consumption of the manometer system.Compared to lithium-ion batteries,supercapacitors are smaller in size,which reduces the volume of the manometer.The manometer housing structure suitable for the light-trigger supercapacitor is designed,and the pressure model of the designed manometer is applied with the ANSYS finite element analysis software to carry out the pressure simulation test.According to the stress cloud diagram obtained by the simulation,the rationality of the shell structure is verified,and the appropriate thickness of the light window and the thickness of the outer cylinder of the manometer are obtained.Thereby the volume of the manometer housing can be calculated.