The invention discloses a multi-parameter
differential pressure transducer. The multi-parameter
differential pressure transducer comprises a main body, a sleeve arranged at one end of the main body, atube socket arranged at an inner side of the sleeve, wherein a circuit board is arranged between the
tube socket and the main body, the inside of the main body is respectively provided with an L typepositive pressure channel and a negative pressure channel, moreover, an external side face of the main body is symmetrically provided with a positive end isolation diaphragm and a negative end isolation diaphragm, and the external side faces of the positive end isolation diaphragm and the negative end are provided with a diaphragm
welding ring; an adaptor table is welded between the
tube socket and the main body, a gage pressure
chip and an absolute pressure
chip are arranged on the circuit board,
positive test ends of the gage pressure
chip and the absolute pressure chip are communicated with the positive end isolation diaphragm through a pressure guiding medium in the
positive pressure channel, and a negative testing end of the gage pressure chip is communicated with the negative end isolation diaphragm through a negative chamber cross bore oil duct, a second pipeline and the pressure guiding medium in the negative channel. The
transducer can measure static pressure of a
system while measuring
differential pressure of the
system, and solves a problem of
complex system and high cost caused by additional increase of pressure transducers.