PRESSURE CONVERTER Russian patent published in 1997 - IPC

FIELD: measurement technology, measurement of pressure of corrosive liquid and gaseous media. SUBSTANCE: proposed pressure converter includes separating membrane and sensitive element I in the form of silicon membrane positioned in case 5. Semiconductor resistance strain gauges connected into measurement bridge are formed on surface of silicon membrane. Sensitive element is put on glass washer 2 fixed on bushing 3 and is connected to leads of contact plate. Separating membrane is manufactured in the form of double polymer elastic film composed of layer of silicon gel 8 and layer of poly-para-xylilene 9 applied directly on gel. Silicon gel is applied on sensitive element I in side of feed of measured medium. EFFECT: increased stability and reliability of operation of pressure converter with simultaneous decrease of its dimensions and cost. 1 dwg