Patent · US Active

High-temperature pressure sensing

US9869599B2 · kind B2 · utility

0Cited by
8References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 30, 2014
Grant dateJan 16, 2018
Priority date—
Expiry dateJun 10, 2035

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01L9/12
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A pressure sensing system includes a hot zone electronics module, a cool zone electronics module and a plurality of conductors that connect the hot zone electronics module to the cool zone electronics module. The hot zone electronics module includes a capacitive pressure sensor and an oscillator that provides an oscillating signal to the capacitive pressure sensor. The hot zone electronics module provides at least one DC sensor signal. The cool zone electronics module converts the at least one DC sensor signal into a pressure value and provides a DC power signal. The plurality of conductors convey the DC power signal to the hot zone electronics module and convey the at least one DC sensor signal to the cool zone electronics module.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.