Differential pressure measuring transducer assembly

A differential pressure measuring transducer assembly comprising:

• a pressure receiving body;
• two sealing diaphragms each disposed on one of opposite sides of said pressure receiving body to define a pressure receiving chamber for a high pressure fluid and a pressure receiving chamber for a low pressure fluid on the opposite sides of the pressure receiving body;
• a center diaphragm disposed in the pressure receiving body to define two isolated chambers each communicating with one of said two pressure receiving chambers;
• a measuring diaphragm formed of semiconductor material having gauge resistance elements disposed on one surface thereof and having on the other surface thereof a center boss area of large thickness and a peripheral support flange of large thickness defining therebetween an annular portion of small thickness;
• a glass support member attached at one end portion thereof to the peripheral support flange of the measuring diaphragm on the other surface thereof, said glass support member being formed with a pressure conducting bore;
• a metallic support member attached at one end portion thereof to the other end portion of the glass support member, said metallic support member being formed of a pressure conducting bore communicating with the pressure conducting bore in the glass support member;
• a differential pressure measuring body having connected thereto said metal support member at the other end portion thereof;
• a metallic connector connecting said pressure receiving body to said differential pressure measuring body and formed with a first pressure conducting bore and a second pressure conducting bore, said first pressure conducting bore communicating said the other surface of the measuring diaphragm with said one pressure receiving chamber and said second pressure conducting bore communicating said one surface of the measuring diaphragm with said the other pressure receiving chamber, through said glass support member and said metallic support member;
• and
• a noncompressive fluid contained in said pressure receiving chambers, said separated chambers and said first and second pressure conducting bores.