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Pressure sensor diagnostics in a process transmitter 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01F-001/38
출원번호 US-0605941 (1996-02-23)
발명자 / 주소
  • Willcox Charles R. (Eden Prairie MN)
출원인 / 주소
  • Rosemount Inc. (Eden Prairie MN 02)
인용정보 피인용 횟수 : 124  인용 특허 : 0

초록

A transmitter in a process control system includes diagnostic circuitry for determining condition of a pressure sensor. The pressure sensor includes a pressure responsive structure and a capacitor coupled to the pressure responsive structure whereby capacitance of the capacitor varies in response to

대표청구항

A transmitter adapted to couple to a two-wire loop in a process control system, comprising: a pressure sensor comprising: a pressure responsive structure for receiving a process pressure; a capacitor having at least one capacitor plate coupled to the pressure responsive structure and having a capaci

이 특허를 인용한 특허 (124)

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