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Smart valve positioner

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G05B-011/48
출원번호 US-0230492 (1994-04-20)
발명자 / 주소
  • Brown Gregory C. (Minnetonka MN)
출원인 / 주소
  • Rosemount, Inc. (Eden Prairie MN 02)
인용정보 피인용 횟수 : 71  인용 특허 : 0

초록

A valve positioner controls operation of a valve in a process control system. The valve positioner is coupled to a process control loop over which it receives a signal representative of a desired valve position and operating power for the positioner. The valve positioner controls a pneumatic actuato

대표청구항

A valve positioner for use in a process control loop, comprising: an interface adapted to couple to the loop to receive a desired valve position and electrical power to operate the valve positioner from the loop; an actuator adapted to position a valve in response to a command output; microprocessor

이 특허를 인용한 특허 (71)

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