[특허]Industrial process device utilizing piezoelectric transducer

[미국특허] Industrial process device utilizing piezoelectric transducer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01H-011/08 G01F-001/20 G01F-001/32
출원번호	US-0107225 (2008-04-22)
등록번호	US-8250924 (2012-08-28)
발명자 / 주소	Hedtke, Robert C.
출원인 / 주소	Rosemount Inc.
대리인 / 주소	Westman, Champlin & Kelly, P.A.
인용정보	피인용 횟수 : 4 인용 특허 : 152

초록 ▼

A process device for coupling to an industrial process for use in monitoring or controlling the process includes a device housing configured to physically couple to the industrial process. A process variable sensor is configured to measure a process variable and measurement circuitry coupled to the process variable sensor provides an output related to the sensed process variable. A piezoelectric transducer provides an electrical output related to pressure pulsations in the industrial process. Electrical circuitry in the housing includes an input configured to receive the electrical output from the piezoelectric sensor.

대표청구항 ▼

1. A process device for coupling to an industrial process for use in monitoring or controlling the process, comprising: a device housing configured to physically couple to the industrial process;a process variable sensor configured to measure a process variable;measurement circuitry coupled to the process variable sensor having an output related to the sensed process variable;a piezoelectric transducer having an electrical output related to pressure pulsations in the industrial process; andelectrical circuitry in the housing having an input configured to receive the electrical output from the piezoelectric sensor, the electrical output used to provide power to the process device;wherein the piezoelectric transducer is configured to receive a control signal which causes movement of the piezoelectric transducer. 2. The apparatus of claim 1 wherein the electrical circuitry is configured to diagnose operation of the industrial process based upon the electrical output. 3. The apparatus of claim 2 including an analog to digital converter having a digital output related to digitize the electrical output. 4. The apparatus of claim 2 including a microcontroller configured to perform diagnostics. 5. The apparatus of claim 2 wherein the diagnostics are based upon an amplitude of pulsations in the industrial process. 6. The apparatus of claim 2 wherein the diagnostics are based upon a frequency of pulsations in the industrial process. 7. The apparatus of claim 2 wherein the diagnostics are based upon a signature in the pulsations in the industrial process. 8. The apparatus of claim 2 wherein the electrical circuitry provides a diagnostic output based upon the pulsations and data stored in a memory. 9. The apparatus of claim 1 wherein movement of the piezoelectric transducer induces pressure pulsations in the process fluid which are sensed by the process variable sensor, the electrical circuitry further configured to diagnose process device operation based upon the sensed pressure pulsations. 10. The apparatus of claim 1 wherein the electrical circuitry includes power storage circuitry configured to store power from the piezoelectric transducer. 11. The apparatus of claim 10 wherein the power storage circuitry comprises a capacitor. 12. The apparatus of claim 11 wherein the capacitor comprises a supercapacitor. 13. The apparatus of claim 1 wherein the piezoelectric transducer is mounted in the housing of the process device. 14. The apparatus of claim 1 wherein the piezoelectric transducer is mounted in a sensor module of the process device. 15. The apparatus of claim 1 wherein the piezoelectric transducer is carried on a mounting flange used to couple the process device to the industrial process. 16. The apparatus of claim 1 wherein the piezoelectric transducer is positioned at a location which is spaced apart from the device housing. 17. The apparatus of claim 1 wherein the piezoelectric transducer couples to the process fluid through a resonant pipe. 18. The apparatus of claim 1 wherein the piezoelectric transducer couples to process fluid through a diaphragm. 19. A method for sensing pulsations in a process device coupled to an industrial process of the type used in monitoring a process variable of industrial process, the method comprising: physically coupling a piezoelectric transducer to the industrial process;receiving pressure pulsations from the industrial process through the physical coupling;sensing a process variable with a process variable sensor;providing a process variable output based upon the sensed process variable;coupling the pressure pulsations to the piezoelectric transducer and providing an electrical output from the piezoelectric transducer in response to the pressure pulsations; andproviding the electrical output to electrical circuitry of the process device, the electrical output for providing power to the electrical circuitry;providing a control signal to the piezoelectric transducer which causes movement of the piezoelectric transducer. 20. The method of claim 19 including diagnosing operation of the industrial process based upon the electrical output. 21. The method of claim 19 including digitizing the electrical output. 22. The method of claim 20 wherein the diagnosing is based upon an amplitude of pulsations in the industrial process. 23. The method of claim 20 wherein the diagnosing is based upon a frequency of pulsations in the industrial process. 24. The method of claim 20 wherein the diagnosing is based upon a signature in the pulsations in the industrial process. 25. The method of claim 20 including providing a diagnostic output based upon the pulsations and data stored in a memory. 26. The method of claim 19 wherein the movement of the piezoelectric transducer induces pressure pulsations in the process fluid and sensing the pressure pulsations with the process variable sensor, the method further including diagnosing process device operation based upon the sensed pressure pulsations. 27. The method of claim 19 wherein the piezoelectric transducer is mounted in the housing of the process device. 28. The method of claim 19 wherein the piezoelectric transducer is mounted in a sensor module of the process device. 29. The method of claim 19 wherein the piezoelectric transducer is carried on a mounting flange used to couple the process device to the industrial process. 30. The method of claim 19 wherein the piezoelectric transducer is positioned at a location which is spaced apart from the device housing. 31. The method of claim 19 wherein the piezoelectric transducer couples to process fluid through a resonant pipe. 32. The method of claim 19 wherein the piezoelectric transducer couples to process fluid through a diaphragm.

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이 특허를 인용한 특허 (4) 인용/피인용 타임라인 분석

Kleven, Lowell A., Acoustic transducer assembly for a pressure vessel.
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Kleven, Lowell A., Acoustic transducer assembly for a pressure vessel.
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Janzen, Sergej; Schroter, Holger; Klattenhoff, Jurgen, Detecting fluid properties of a multiphase flow in a condensate drain.
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Ewing, James; Loveless, Daniel, Thermocouple.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Industrial process device utilizing piezoelectric transducer 원문보기

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[미국특허] Industrial process device utilizing piezoelectric transducer 원문보기

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이 특허에 인용된 특허 (152) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (4) 인용/피인용 타임라인 분석

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