DE3303980A1 - High-pressure sensor - Google Patents

High-pressure sensor

Info

Publication number
DE3303980A1
DE3303980A1 DE19833303980 DE3303980A DE3303980A1 DE 3303980 A1 DE3303980 A1 DE 3303980A1 DE 19833303980 DE19833303980 DE 19833303980 DE 3303980 A DE3303980 A DE 3303980A DE 3303980 A1 DE3303980 A1 DE 3303980A1
Authority
DE
Germany
Prior art keywords
membrane
high pressure
pressure sensor
bottom part
transducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19833303980
Other languages
German (de)
Inventor
Erich 7993 Kressbronn Brosa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19833303980 priority Critical patent/DE3303980A1/en
Publication of DE3303980A1 publication Critical patent/DE3303980A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0002—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using variations in ohmic resistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

Published without abstract.

Description

Hochdruckaufnehmer High pressure transducer

Dic rfindung dient der Erilellung lecksicherer Hochdruckaufnehmer mit doppelter Dichtung 1-2 und einer Membrane 3, die nicht verschraubt ist, sondern mit dem Bodenteil 4 aus einem Stück besteht, siehe Abbildung.The purpose of the invention is to create leak-proof high-pressure transducers with double seal 1-2 and a membrane 3, which is not screwed, but consists of one piece with the bottom part 4, see illustration.

Hochdruckleitungen und druckführende Teile derartiger Aufnehmer haben verhältnismäßig kleine Durchmesser 5 zu dicken Wandungen 6, weshalb die Bearbeitung der Membranunterseite 7 ohne einen herausschraubbaren Rohranschluß 8 nicht möglich ist.Have high pressure lines and pressurized parts of such sensors relatively small diameter 5 to thick walls 6, which is why the processing the membrane underside 7 is not possible without a screw-out pipe connection 8 is.

Um Membranen 3, die zur Sicherheit mit dem Gehäuse bzw. -bodenteil 4 aus eirem Stück bestehen, fertigen und justieren zu können, ist für das Ausdrehwerkzeug ein ausreichend großer Durchmesser 9 im Bodenteil 4 erforderlich.To membranes 3, which for safety with the housing or bottom part 4 consisting of one piece, being able to manufacture and adjust, is for the boring tool a sufficiently large diameter 9 in the bottom part 4 is required.

Ein Rohranschluß 8, der mit einem Gewinde 10 dem Schub des Druckmediums im Bodenteil 4 standhält und mit einem oder zwei (z.B.) O-Ringen 1 dichtet, wird während der Justierarbeiten an der Unterseite 7 der Membrane 3 mehrmais ein-und ausgebaut, da an der Oberseite 11 der Membran 3 Dehnungsmeßstreifen (DMS) 12 oder andere Wandlerelemente angebracht sind.A pipe connection 8, with a thread 10, the thrust of the pressure medium in the bottom part 4 withstands and seals with one or two (e.g.) O-rings 1, is during the adjustment work on the underside 7 of the membrane 3 several times in and out expanded because on the top 11 of the membrane 3 strain gauges (DMS) 12 or other transducer elements are attached.

Nach Abschluß der Justierarbeiten wird der Rohranschluß 8 mit dem Bodenteil 4 dicht verschweißt 2 und so auch gegen Verdrehen gesichert.After completion of the adjustment work, the pipe connection 8 with the Bottom part 4 tightly welded 2 and thus also secured against twisting.

Ein Schutzrohr 13, das auch den Kabelanschluß 14 trägt, wird bei 15 soweit unterhalb der Membranebene 3 angeschweißt, daß die Dehnung der Membrane 3 bei Druckbelastung in achsialer und radialer Richtung nicht behindert wird.A protective tube 13, which also carries the cable connection 14, is at 15 welded so far below the membrane level 3 that the expansion of the membrane 3 is not hindered by pressure loading in the axial and radial direction.

(Siehe auch die Darstellung A zu B) 16 ist ein Gewinde für den üblichen Hochdruckrohranschluß.(See also illustration A to B) 16 is a thread for the usual High pressure pipe connection.

Claims (3)

Patentansprüche 01) Hochdruckaufnehmer (siehe Abb.), dadurch gekennzeichnet, daß eine mit dem Bodenteil (4) eines Hochdruckaufnehmers aus einem Stück gefertigte Membran (3) auf der Ober-bzw. Außenseite mit DMS (12) oder anderen Wandlerelementen versehen ist und auf der Unterseite einen genügend großen Durchmesser (9) besitzt, wodurch die Membrane (3) auf der Innenseite (7) nachgedreht werden kann und ein mehrfach abgedichtetes (1-2), die Schubkraft des Druckmediums sicher aufnehmendes Gewinde (10) für einen Rohranschluß (8) besitzt, der zum Justieren mehrfach ein-und ausgebaut und dann verschweißt (2) werden kann. Claims 01) High pressure transducer (see Fig.), Characterized in that that one made of one piece with the bottom part (4) of a high pressure sensor Membrane (3) on the upper or. Outside with strain gauges (12) or other transducer elements is provided and has a sufficiently large diameter (9) on the underside, whereby the membrane (3) can be turned on the inside (7) and a multiply sealed (1-2), which safely absorbs the thrust of the pressure medium Has a thread (10) for a pipe connection (8) which can be used for adjustment several times can be removed and then welded (2). 2 Hochdruckaufnehmer nach Anspruch 1, dadurch gekennzeichnet, daß der Rohranschluß (8) einen kleinstmöglichen Kanal (5) und Membranvorraum (17), d.h. Totraum, besitzt. 2 high pressure sensor according to claim 1, characterized in that the pipe connection (8) has the smallest possible channel (5) and membrane vestibule (17), i.e. Dead space. 3 Hochdruckaufnehmer nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das den Kabelanschluß (14) tragende Schutzrohr (13) soweit unterhalb der Membrane (3) mit dem Bodenteil (4) verschweißt (15) ist, daß die achsiale und radiale Dehnung der Membrane (3) unter dem Einfluß des Mediendruckes nicht behindert und somit die Kennlinie des Aufnehmers nicht verzerrt wird (siehe Darstellung B). 3 high pressure sensor according to claim 1 and 2, characterized in that that the protective tube (13) carrying the cable connection (14) is below the membrane (3) is welded (15) to the bottom part (4) that the axial and radial expansion the membrane (3) is not hindered under the influence of the media pressure and thus the The characteristic curve of the transducer is not distorted (see illustration B).
DE19833303980 1983-02-05 1983-02-05 High-pressure sensor Ceased DE3303980A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833303980 DE3303980A1 (en) 1983-02-05 1983-02-05 High-pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833303980 DE3303980A1 (en) 1983-02-05 1983-02-05 High-pressure sensor

Publications (1)

Publication Number Publication Date
DE3303980A1 true DE3303980A1 (en) 1984-09-27

Family

ID=6190137

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833303980 Ceased DE3303980A1 (en) 1983-02-05 1983-02-05 High-pressure sensor

Country Status (1)

Country Link
DE (1) DE3303980A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601249A1 (en) * 1986-01-17 1987-07-23 Gewerk Eisenhuette Westfalia Pressure sensor for hydraulically operated devices in underground mining
WO1989009929A1 (en) * 1988-04-08 1989-10-19 General Electric Company Pressure transducer and associated electronics and assembling method
DE3818458A1 (en) * 1988-05-31 1989-12-07 Moto Meter Ag Device for the measurement of the pressure of liquid or gaseous media
EP0352240A1 (en) * 1988-07-21 1990-01-24 MARELLI AUTRONICA S.p.A. A very-high-pressure transducer, particularly for detecting the pressure of a hydraulic fluid
DE3913031A1 (en) * 1989-04-18 1990-10-25 Nippon Soken PRESSURE SENSOR
EP0394632A1 (en) * 1989-03-07 1990-10-31 Pfister GmbH Pressure sensor and method of fabricating the same
DE3919059A1 (en) * 1989-06-10 1991-01-03 Bosch Gmbh Robert Pressure sensor esp. for vehicle engine compartment - has sensor resistances on membrane in sensor substrate base body
US4993267A (en) * 1988-04-08 1991-02-19 General Electric Company Electronic transducer
DE4101016A1 (en) * 1990-01-17 1991-07-18 Nissan Motor PRESSURE SENSOR OF THE MEMBRANE DESIGN
DE4003048A1 (en) * 1990-02-02 1991-08-08 Pfister Gmbh Diaphragm force or pressure transducer
EP0471355A2 (en) * 1990-08-17 1992-02-19 Pfister Messtechnik GmbH Ceramic hollow bodies and process of manufacturing the same
US5134888A (en) * 1989-11-11 1992-08-04 Gewerkschaft Eisenhutte Westfalia Gmbh Electrical devices for measuring hydraulic pressure
EP1281947A1 (en) * 2001-08-03 2003-02-05 Trafag AG High-pressure sensor and its manufacturing method
DE10243538B4 (en) * 2002-09-16 2006-07-20 EBM Brosa Messgeräte GmbH & Co. KG high pressure transducer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381190A (en) * 1965-12-01 1968-04-30 Gen Electric Variable capacitance force measuring transducer
DE1573812A1 (en) * 1965-04-09 1970-05-21 Diffusion D App De Mesure Et D Device for measuring the pressure of liquids or gases
US3527099A (en) * 1968-12-06 1970-09-08 Weatherhead Co Strain gage pressure transducer
US3859575A (en) * 1974-02-11 1975-01-07 Lee Shih Ying Variable capacitance sensor
DE7442919U (en) * 1975-06-12 Gesellschaft Fuer Kernforschung Mbh Pressure transducer
DE2600925A1 (en) * 1976-01-13 1977-07-14 Hewlett Packard Gmbh PRESSURE TRANSDUCER
US4199991A (en) * 1978-05-08 1980-04-29 Gould Inc. Isolation diaphragm assembly for pressure transducers and method of manufacture

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7442919U (en) * 1975-06-12 Gesellschaft Fuer Kernforschung Mbh Pressure transducer
DE1573812A1 (en) * 1965-04-09 1970-05-21 Diffusion D App De Mesure Et D Device for measuring the pressure of liquids or gases
US3381190A (en) * 1965-12-01 1968-04-30 Gen Electric Variable capacitance force measuring transducer
US3527099A (en) * 1968-12-06 1970-09-08 Weatherhead Co Strain gage pressure transducer
US3859575A (en) * 1974-02-11 1975-01-07 Lee Shih Ying Variable capacitance sensor
US3859575B1 (en) * 1974-02-11 1988-05-03
DE2600925A1 (en) * 1976-01-13 1977-07-14 Hewlett Packard Gmbh PRESSURE TRANSDUCER
US4199991A (en) * 1978-05-08 1980-04-29 Gould Inc. Isolation diaphragm assembly for pressure transducers and method of manufacture

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601249A1 (en) * 1986-01-17 1987-07-23 Gewerk Eisenhuette Westfalia Pressure sensor for hydraulically operated devices in underground mining
US4993267A (en) * 1988-04-08 1991-02-19 General Electric Company Electronic transducer
US4918833A (en) * 1988-04-08 1990-04-24 General Electric Company Method of assembling an electronic transducer
WO1989009929A1 (en) * 1988-04-08 1989-10-19 General Electric Company Pressure transducer and associated electronics and assembling method
DE3818458A1 (en) * 1988-05-31 1989-12-07 Moto Meter Ag Device for the measurement of the pressure of liquid or gaseous media
EP0352240A1 (en) * 1988-07-21 1990-01-24 MARELLI AUTRONICA S.p.A. A very-high-pressure transducer, particularly for detecting the pressure of a hydraulic fluid
EP0394632A1 (en) * 1989-03-07 1990-10-31 Pfister GmbH Pressure sensor and method of fabricating the same
DE3913031A1 (en) * 1989-04-18 1990-10-25 Nippon Soken PRESSURE SENSOR
DE3919059A1 (en) * 1989-06-10 1991-01-03 Bosch Gmbh Robert Pressure sensor esp. for vehicle engine compartment - has sensor resistances on membrane in sensor substrate base body
US5134888A (en) * 1989-11-11 1992-08-04 Gewerkschaft Eisenhutte Westfalia Gmbh Electrical devices for measuring hydraulic pressure
DE4101016A1 (en) * 1990-01-17 1991-07-18 Nissan Motor PRESSURE SENSOR OF THE MEMBRANE DESIGN
DE4003048A1 (en) * 1990-02-02 1991-08-08 Pfister Gmbh Diaphragm force or pressure transducer
EP0471355A2 (en) * 1990-08-17 1992-02-19 Pfister Messtechnik GmbH Ceramic hollow bodies and process of manufacturing the same
EP0471355A3 (en) * 1990-08-17 1992-09-30 Pfister Messtechnik Gmbh Ceramic hollow bodies and process of manufacturing the same
EP1281947A1 (en) * 2001-08-03 2003-02-05 Trafag AG High-pressure sensor and its manufacturing method
DE10243538B4 (en) * 2002-09-16 2006-07-20 EBM Brosa Messgeräte GmbH & Co. KG high pressure transducer

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8131 Rejection