The CYX20 series oil injection core pressure sensor is a differential pressure sensitive device that uses stainless steel double corrugated diaphragm isolation. The measured differential pressure is transmitted to the silicon pressure sensitive element through the isolation diaphragm and filled silicone oil, achieving the accuracy of the differential pressure. measuring. The core body adopts internationally advanced high-stability, high-precision silicon pressure chip, adopts sintering seat of stress optimization design, through patch, gold wire bonding, diaphragm welding, high vacuum oil injection, pressure cycle stress relief, high temperature aging, Process production such as temperature compensation. The shape, size and sealing method of general-purpose products are consistent with the international mainstream similar products, and have good interchangeability. They are widely used in differential pressure and liquid level measurement of media compatible with 316L stainless steel and nitrile rubber or fluorine rubber.