Patent ID: 9027409
Filing Date: 2015-05-12
Classification: G01L

Abstract:
1. A pressure transducer, comprising: a first diaphragm housed in a first section of a header, the first diaphragm having a first diameter and being adapted to receive a first pressure; a second diaphragm housed in a second section of the header, the second diaphragm having a second diameter and being adapted to receive a second pressure, wherein the first diameter and the second diameter are different; and a sensor module in communication with the first diaphragm and the second diaphragm via first and second oil-filled volumes, respectively, the sensor module adapted to output a signal indicating a difference between the first and second pressures; wherein the first diaphragm receives a first back pressure from the first oil-filled volume and the second diaphragm receives a second back pressure from the second oil-filled volume.