DE2533078A1 - Indirectly coupled press. gauge for pipelines - has strain gauge clamped to pipe exterior to measure internal press. - Google Patents

Indirectly coupled press. gauge for pipelines - has strain gauge clamped to pipe exterior to measure internal press.

Info

Publication number
DE2533078A1
DE2533078A1 DE19752533078 DE2533078A DE2533078A1 DE 2533078 A1 DE2533078 A1 DE 2533078A1 DE 19752533078 DE19752533078 DE 19752533078 DE 2533078 A DE2533078 A DE 2533078A DE 2533078 A1 DE2533078 A1 DE 2533078A1
Authority
DE
Germany
Prior art keywords
press
gauge
pressure
clamped
pipelines
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.)
Pending
Application number
DE19752533078
Other languages
German (de)
Inventor
Manfred Gauchel
Peter Langos
Ernst Wurzer
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.)
KROMBERG GES fur INGENIEURLEI
Original Assignee
KROMBERG GES fur INGENIEURLEI
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 KROMBERG GES fur INGENIEURLEI filed Critical KROMBERG GES fur INGENIEURLEI
Priority to DE19752533078 priority Critical patent/DE2533078A1/en
Publication of DE2533078A1 publication Critical patent/DE2533078A1/en
Pending 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges

Abstract

The pressure transducer for measuring fluid pressure in pipelines consists of a pair of Vee blocks (1) clamped to the outer case of the tube through which the medium is flowing. The blocks form part of a strain gauge measuring apparatus using electrical, pneumatic, hydraulic or mechanical transmission to operate a calibrated indicator unit (3, 4). Changes in pressure within the pipe are sensed as stresses in the tube walls. The pressure gauge requires no direct connection with the fluid medium in the tube and thus prevents inadvertent admission of air, loss of medium or contamination which could possibly occur with manometer-type instruments.

Description

Vorrichtung zum Messen von Drücken Die Erfindung bezieht sich auf das Verfahren zum Messen von Drücken in Rohren ohne direkte Verbindung zum Druckmedium.Apparatus for measuring pressures The invention relates to the method of measuring pressures in pipes without a direct connection to the pressure medium.

Stand der Technik ist, daß die Druckmeßgeräte (Manometer) das flüssige oder gasförmige Medium selbst abtasten müssen, um den Druck zu messen.The state of the art is that the pressure gauges (manometers) use the liquid or gaseous medium have to sample themselves in order to measure the pressure.

Die der Erfindung zugrundeliegenden Vorteile gegenüber den bekannten Manometern bestehen im wesentlichen aus folgenden Punkten: 1. Das Aufschneiden von Rohren entfällt und damit auch der Verlust vom Medium und dessen Verschmutzung.The advantages underlying the invention over the known Pressure gauges essentially consist of the following points: 1. Cutting open There is no need for pipes and with it the loss of the medium and its contamination.

2. Luft kann nicht ins System eindringen.2. Air cannot enter the system.

3. Keine Umweltverschmutzur,s.3. No pollution, s.

4. Vor Ort kann schneller geresset und können Fehler schneller entdeckt werden.4. On-site can be remedied more quickly and errors can be discovered more quickly will.

Merkmale der Erfindung ergehen aus nachfolgender Beschreibung, welche auf ein in der Zeichnung dargestelltes Ausftihrungsbeispiel Bezug nimmt.Features of the invention emerge from the following description, which refers to an embodiment shown in the drawing.

Eine Vorrichtung, bestehend aus zwei Prismenhälften 1 wird um das zu messende, mit Druck beaufschlagte Rohr 2 so befestigt, daß eine Dehnung des Rohres - hervorgerufen durch den inneren Druck - meßtechnisch (elektrisch, pneumatisch, hydraulisch, mechanisch o.a.) erfaßt und mittels einer Eichung 3, d.h.A device consisting of two prism halves 1 is placed around the to be measured, pressurized pipe 2 attached so that an expansion of the pipe - caused by the internal pressure - measurement technology (electrical, pneumatic, hydraulically, mechanically, etc.) and by means of a calibration 3, i.e.

Abstimmung auf Rohrdurchmesser und llanddicke der Druck direkt über eine Anzeige 4 abgelesen werden kann.Adjustment to pipe diameter and land thickness of the pressure directly above a display 4 can be read.

4 PatentansprUche4 claims

Claims (4)

Patentansprüche 1. I Verfahren zum Messen von Drücken in Rohren, dadurch gekennzeichnet, daß keine direkte Verbindung von der Meßeinrichtung zum Druckmedium besteht.Claims 1. I method for measuring pressures in pipes, thereby characterized in that no direct connection from the measuring device to the pressure medium consists. 2. Verfahren zum Messen von Drücken in Rohren, dadurch gekannzeichnet, daß die Dehnung des unter Druck stehenden, medi umführenden Elementes (Rohr) zur Messung des Druckes benutzt wird. 2. Method for measuring pressures in pipes, characterized thereby, that the expansion of the pressurized, medi bypassing element (tube) to Measurement of pressure is used. 3. Verfahren zum Messen von Drücken in Rohren, dadurch gekennzeichnet, daß die Dehnung elektrisch, mechanisch, hydraulisch, pneumatisch abgetastet werden kann. 3. A method for measuring pressures in pipes, characterized in that that the expansion can be scanned electrically, mechanically, hydraulically, pneumatically can. 4. Verfahren zum Messen von Drücken in Rohren, dadurch gekennzeichnet, dß die abgetastete Dehnung auf ein skaliertes Anzeigegerät übertragen wird. 4. A method for measuring pressures in pipes, characterized in that that the sensed strain is transmitted to a scaled display device.
DE19752533078 1975-07-24 1975-07-24 Indirectly coupled press. gauge for pipelines - has strain gauge clamped to pipe exterior to measure internal press. Pending DE2533078A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752533078 DE2533078A1 (en) 1975-07-24 1975-07-24 Indirectly coupled press. gauge for pipelines - has strain gauge clamped to pipe exterior to measure internal press.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752533078 DE2533078A1 (en) 1975-07-24 1975-07-24 Indirectly coupled press. gauge for pipelines - has strain gauge clamped to pipe exterior to measure internal press.

Publications (1)

Publication Number Publication Date
DE2533078A1 true DE2533078A1 (en) 1977-02-10

Family

ID=5952339

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752533078 Pending DE2533078A1 (en) 1975-07-24 1975-07-24 Indirectly coupled press. gauge for pipelines - has strain gauge clamped to pipe exterior to measure internal press.

Country Status (1)

Country Link
DE (1) DE2533078A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003675A1 (en) * 1978-02-08 1979-08-22 Scotus Patentverwaltungs Anstalt Pressure sensing apparatus
FR2478812A1 (en) * 1980-03-20 1981-09-25 Wauters Yves Pressure variation monitor for surgical drainage tube - comprises thermoplastics bellows in path of tube to provide visual pressure indication by state of deformity
WO1998036254A1 (en) * 1997-02-12 1998-08-20 Medtronic, Inc. Method and apparatus for sensing fluid pressure
CN103698073A (en) * 2013-12-27 2014-04-02 南昌航空大学 Device and method for testing fastening pressure of shape memory alloy pipe joint

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003675A1 (en) * 1978-02-08 1979-08-22 Scotus Patentverwaltungs Anstalt Pressure sensing apparatus
FR2478812A1 (en) * 1980-03-20 1981-09-25 Wauters Yves Pressure variation monitor for surgical drainage tube - comprises thermoplastics bellows in path of tube to provide visual pressure indication by state of deformity
WO1998036254A1 (en) * 1997-02-12 1998-08-20 Medtronic, Inc. Method and apparatus for sensing fluid pressure
US6250164B1 (en) 1997-02-12 2001-06-26 Medtronic, Inc. Measurement of fluid pressure within a tube
CN103698073A (en) * 2013-12-27 2014-04-02 南昌航空大学 Device and method for testing fastening pressure of shape memory alloy pipe joint
CN103698073B (en) * 2013-12-27 2016-07-27 南昌航空大学 A kind of marmem pipe joint fastening pressure test device and method of testing thereof

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Legal Events

Date Code Title Description
OHJ Non-payment of the annual fee
OGA New person/name/address of the applicant