Non-contact pressure measuring device and method

The invention relates to a pressure measuring device and method, in particular to a non-contact pressure measuring device and method, which are suitable for pressure measurement of a gas cylinder module in a rocket attitude and orbit control power system and are also generally suitable for other pressure containers with pressure measurement requirements. The technical problems that the sealing reliability and safety of an original structure are reduced and long-term pressure monitoring is not facilitated in the prior art are solved. The non-contact pressure measuring devicecomprises a cable, ademodulator, a strain sensor and a temperature sensor, wherein the strain sensor and the temperature sensor are respectively adhered to the outer surface of the pressure-bearing shell of the gas cylinder module to be measured; the strain sensor and the temperature sensor are connected with the demodulator through the cable; and the demodulator is provided with a calibration value input equipmentinterface. The method is c