[특허]Low cost versatile pressure transducer

Low cost versatile pressure transducer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01L-009/12
출원번호	US-0019595 (1993-02-19)
발명자 / 주소	Park Kyong M. (Thousand Oaks CA) Tirmizi Abrar A. (Simi Valley CA)
출원인 / 주소	Kavlico Corporation (Moorpark CA 02)
인용정보	피인용 횟수 : 43 인용 특허 : 0

초록 ▼

A versatile low cost capacitive type of electrical pressure transducer includes a sensor module providing an output signal indicative of fluid pressure effective thereon, and an elongate cylindrical housing receiving the module and providing for communication thereto of a first fluid pressure (which may have a high pressure level), and of a second fluid pressure (which may range from a vacuum through atmospheric pressure to a pressure level of a few hundred pounds). Consequently the transducer may operate as a gauge pressure sensor or as a differential pressure sensor. Alternatively, other types of sensor modules may also be employed in housings of the same or substantially the same design to fulfill other types of pressure measurement tasks. The commonality of component parts of the various sensors contributes to a reduces cost. Also, the components of the housing are economical to manufacture and assemble, and provide for testing and calibration of the sensors at an intermediate step of manufacture. Thus, further cost savings are realized. The housing provides for electrical shielding of the sensor module from electromagnetic and radio frequency interference, as well as filtering power surges and higher frequency noise. Accuracy and service life of the transducers are thus improved. A connector portion of the housing is secured by a tubular portion thereof by means of low cost rolling operations, and also provides a second source of support to the sensor module in resisting displacement in the housing caused by high fluid pressures. As a result an inexpensive pressure transducer is realized which is applicable to measurement of rather high fluid pressures.

대표청구항 ▼

A versatile low-cost gauge or differential pressure transducer usable at high pressures, said pressure transducer comprising: a cup-shaped electrically conductive and high strength high-pressure fitting member having an integral end wall and side wall cooperatively defining a cavity, said side wall defining an axial opening to said cavity, and said end wall outwardly defining an axial boss portion with a nipple for connection of said transducer to a first source of pressurized fluid, inwardly said end wall defining a conical recess circumscribed by a sealing feature for sealing cooperation with a pressure sensor module receivable into said cavity, and a passage communicating said nipple with said conical recess; a pressure sensor module including a disk-like substrate portion on one side thereof sealingly carrying a disk-like diaphragm portion cooperating with said substrate portion to define an internal chamber, said diaphragm portion outwardly defining an axial pressure-responsive face for said pressure sensor module, said diaphragm portion and said substrate portion each carrying respective conductive coatings in said internal chamber which coatings cooperatively define a variable capacitor varying in capacitance in response to pressurized fluid effective upon said diaphragm portion, said substrate portion on the other side thereof carrying a hybrid integrated circuit electrically responsive to changes in said variable capacitor to provide an output signal indicative of a pressure level of said pressurized fluid effective on said diaphragm portion, said pressure sensor module being received into said cavity and at said pressure-responsive face thereof sealingly cooperating with said sealing feature of said end wall to bound a high-pressure chamber in said recess; a cup-shaped spacer member received into said cavity and defining a respective cavity axially receiving said pressure sensor module with said pressure-responsive face disposed away from a respective end wall of said spacer member, said cup-shaped spacer member being disposed oppositely to said cup-shaped fitting member to capture said sensor module between the respective end walls of each and to urge said module sealingly into engagement with said sealing feature; said side wall of said high-pressure fitting member defining a radially inwardly extending lip portion defining said opening to said cavity and forcefully cooperating with said spacer member to urge both the latter toward said end wall and said pressure sensor module into sealing engagement with said sealing feature; electrically conductive plate means at said opening to said high-pressure fitting member for on the one hand closing said opening and on the other hand for connecting said output signal therethrough externally of said cavity; an electrical connector member axially juxtaposed with said high-pressure fitting member at said opening thereof and including an axial surface engaging said lip portion, said connector member including electrical connectors for connecting said output signal externally of said transducer; each of said substrate portion, said spacer member, and said connector member defining respective passages communicating with one another and with said internal chamber of said pressure sensor module, said connector member also defining a port communicating with said passages and opening thereon in a respective nipple for communication of said transducer alternatively with ambient pressure or with a second source of pressurized fluid, a filter assembly disposed in one of said passages for excluding particulates and liquid moisture; and a tubular member receiving both said high-pressure fitting member and said connector member in axial juxtaposition, said tubular member at each end thereof including a radially inwardly extending lip part engaging a respective one of said connector member and said high-pressure fitting member to forcefully urge these members toward one another; whereby said high-pressure fitting member and said tubular member cooperatively provide a duality of axial support urging said pressure sensor module into sealing engagement with said sealing feature in opposition to fluid pressures communicating to said high-pressure chamber.

이 특허를 인용한 특허 (43)

Eckhardt, Todd; Kashyap, Pavan R.; Machir, Jim; Thanigachalam, Palani, Cable harness for a sensor.
상세보기
Miesel, Keith A.; Haase, James M.; Paidosh, Chris J.; Janzig, Darren A.; Denison, Timothy J., Capacitive pressure sensor assembly.
상세보기
Broden, David A.; Horky, David A., Capacitive pressure transmitter.
상세보기
Broden,David A.; Horky,David A., Capacitive pressure transmitter.
상세보기
Bjoerkman, Per; Olsson, Ray, Capacitive vacuum measuring cell.
상세보기
Eckhardt, Todd; Rozgo, Paul; Bentley, Ian; Machir, Jim; Jones, Ryan, Connector assembly for a sensor.
상세보기
Lischer,D. Jeffrey; Traverso,Robert, Contaminant deposition control baffle for a capacitive pressure transducer.
상세보기
Hedtke, Robert C.; Broden, David A., Coplanar process fluid pressure sensor module.
상세보기
Louwagie Bennett L. ; Munson Gregory S. ; Wiklund David E. ; Zweber Michael J. ; Broden David A. ; Bischoff Brian J. ; Corpron Gary P., Differential pressure measurement arrangement utilizing dual transmitters.
상세보기
Barr Howard S. ; Lehman Dennis, Electronic pressure sensor.
상세보기
Agami,Mark, High-temperature reduced size manometer.
상세보기
Miesel, Keith A.; Haase, James M.; Paidosh, Chris J.; Janzig, Darren A.; Denison, Timothy J., Implantable medical pump with pressure sensor.
상세보기
Jones, Ryan; Eckhardt, Todd; Machir, Jim; Wade, Richard, Interchangeable pressure sensor assembly and methods of assembly.
상세보기
Jones, Ryan; Eckhardt, Todd; Wade, Richard, Interchangeable pressure sensor assembly and methods of assembly.
상세보기
Eckhardt, Todd; Bradley, Alistair David; Job, Sunil; Thanigachalam, Palani; Machir, Jim, Joint between a pressure sensor and a pressure port of a sensor assembly.
상세보기
Bjoerkman,Per, Membrane for capacitive vacuum measuring cell.
상세보기
Choe, Howard C.; Glesmann, Jonathan M., Method and apparatus for estimating torque in rotating machinery.
상세보기
Grudzien, Chris P., Method and apparatus for forming a reference pressure within a chamber of a capacitance sensor.
상세보기
Choe, Howard C.; Chachich, Alan C.; Woodroffe, Jaime A., Method and apparatus for monitoring rotating machinery.
상세보기
Choe, Howard C., Method and apparatus for self-diagnosis of a sensor.
상세보기
Jonsson,Steffan, Method for producing a pressure sensor for detecting small pressure differences and low pressures.
상세보기
Grudzien,Chris P., Method of forming a seal between a housing and a diaphragm of a capacitance sensor.
상세보기
Grudzien,Chris P., Method of forming a seal between a housing and a diaphragm of a capacitance sensor.
상세보기
Moser Thomas M. ; Dolezalek Charles R. ; Jost Michael B. ; Olson Mark H., Mounting assembly for a pressure transmitter.
상세보기
W채lchli,Urs; Bj철rkman,Per; Saari,Heikki; Antila,Jarkko; Hanselmann,Hansjakob; W체est,Martin, Optical interferometric pressure sensor.
상세보기
Sasaki Keiji,JPX ; Miyano Jun-ichi,JPX ; Sawada Akira,JPX, Pressure sensor.
상세보기
Sawada Kenichi,JPX ; Mitani Tateki,JPX, Pressure sensor.
상세보기
Wade, Richard A.; Jones, Ryan; Eckhardt, Todd; Machir, James A.; Bentley, Ian, Pressure sensor assembly.
상세보기
Kim, Young Deok; Byeon, Eul Chul; Oh, Kyung Hwan; Choi, Won Jong, Pressure sensor for a brake system.
상세보기
Jonsson,Steffan, Pressure sensor for detecting small pressure differences and low pressures.
상세보기
Olson Mark H. ; Jost Michael B. ; Bischoff Brian J. ; Moser Thomas M., Pressure transmitter with high pressure isolator mounting assembly.
상세보기
Adams, Mark A.; Norbeck, Dean K.; Snell, Paul W.; Soussa, Alexander J., Probe for sensing movement in a compressor system.
상세보기
Hausler, George Charles; Haywood, Nicholas; Schwartz, Daniel Ronald, Process fluid pressure transmitter with replaceable atmospheric vent filter.
상세보기
Eckhardt, Todd; Machir, Jim; Thanigachalam, Palani; Job, Sunil, Protective cover for pressure sensor assemblies.
상세보기
Tirmizi, Abrar A., Pyrotechnic initiator having output can with encapsulation material retention feature.
상세보기
Tirmizi,Abrar A., Pyrotechnic initiator having output can with encapsulation material retention feature.
상세보기
Jaime A. Woodroffe ; Alan C. Chachich ; Jonathan M. Glesmann ; Howard C. Choe ; Kevin J. Keane, Sensor plug.
상세보기
Peterson, Tom; Diaz, Jorge Andres Diaz; Cucci, Gerald R., Sensor usable in ultra pure and highly corrosive environments.
상세보기
Peterson,Thomas; Diaz,Jorge Andres Diaz; Cucci,Gerald R., Sensor usable in ultra pure and highly corrosive environments.
상세보기
Park Kyong M. ; Rosales Abe, Shielded capacitive pressure sensor.
상세보기
Traverso,Robert, Surface area deposition trap.
상세보기
Adams, Mark A.; Norbeck, Dean K.; Snell, Paul W.; Soussa, Alexander J., System and method for sensing movement in a compressor system.
상세보기
Grudzien,Chris P., Turbo sump for use with capacitive pressure sensor.
상세보기

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

내보내기 구분	파일저장 인쇄 메일전송
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

연합인증

Low cost versatile pressure transducer 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (43)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Low cost versatile pressure transducer 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (43)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트