DE20216822U1 - Pressure transducer for indirect measurement of the liquid level in a tank, whereby the tank weight is transferred to the transducer via a pressure transfer medium, thus enabling precise measurements with an inexpensive device - Google Patents

Pressure transducer for indirect measurement of the liquid level in a tank, whereby the tank weight is transferred to the transducer via a pressure transfer medium, thus enabling precise measurements with an inexpensive device

Info

Publication number
DE20216822U1
DE20216822U1 DE20216822U DE20216822U DE20216822U1 DE 20216822 U1 DE20216822 U1 DE 20216822U1 DE 20216822 U DE20216822 U DE 20216822U DE 20216822 U DE20216822 U DE 20216822U DE 20216822 U1 DE20216822 U1 DE 20216822U1
Authority
DE
Germany
Prior art keywords
pressure
transducer
transmission device
tank
force transmission
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.)
Expired - Lifetime
Application number
DE20216822U
Other languages
German (de)
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.)
Keller AG fuer Druckmesstechnik
Original Assignee
Keller AG fuer Druckmesstechnik
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 Keller AG fuer Druckmesstechnik filed Critical Keller AG fuer Druckmesstechnik
Priority to DE20216822U priority Critical patent/DE20216822U1/en
Publication of DE20216822U1 publication Critical patent/DE20216822U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01L9/0089—Transmitting or indicating the displacement of pistons by electrical, electromechanical, magnetic or electromagnetic means

Landscapes

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

Abstract

Pressure transducer for indirect measurement of the amount of fluid in a tank (1). Accordingly a foot support (5') is mounted against a sphere which transfers the pressure. The space between a force transfer device and a pressure transfer device that acts on the membrane of the pressure transducer is filled with a pressure transfer medium such as oil. Two circular grooves are provided in the cylindrical force transfer device in which two corresponding sealing rings are placed.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (6)

1. Transducer, insbesondere Druckt-Tansducer mit den folgenden Merkmalen:
  • - es ist ein Druckaufnehmer (26) zur Messung von Drücken vorgesehen,
  • - zu dem Druckaufnehmer (26) führen Anschlussdrähte (39) und/oder Sockelstifte (43) für die elektrische Signal­ gewinnung oder Signalerfassung,
  • - der Druckaufnehmer (26) ist druckmessseitig verschlos­ sen, vorzugsweise über eine Druckmessmembran (29),
  • - im Abstand zum Druckaufnehmer (26) ist in einem ge­ meinsamen Gehäuse (1) eine den Druck übertragenden und/oder zumindest leicht verschiebbare Kraftübertra­ gungseinrichtung (51) vorzugsweise in Form eines Zy­ linders oder eines Scheibenkörpers angeordnet,
  • - der Raum zwischen der Kraftübertragungseinrichtung (51) und der Druckübertragungseinrichtung (26) ist mit einem Druckübertragungsmedium (55) vollständig be­ füllt,
dadurch gekennzeichnet, dass die zylinderförmige Kraft­ übertragungseinrichtung (51) an ihrem Außenumfang zu­ mindest einen, vorzugsweise zumindest zwei in Axialrich­ tung versetzt liegende Ringnuten (57', 57") aufweist, in welche zumindest ein Dichtungsring bzw. vorzugsweise zumindest zwei entsprechende Dichtungsringe (59', 59") eingesetzt sind.1. Transducer, in particular Druckt-Tansducer with the following features:
  • - A pressure sensor ( 26 ) is provided for measuring pressures,
  • - To the pressure transducer ( 26 ) lead wires ( 39 ) and / or base pins ( 43 ) for electrical signal acquisition or signal detection,
  • - The pressure sensor ( 26 ) is closed on the pressure measurement side, preferably via a pressure measurement membrane ( 29 ),
  • - At a distance from the pressure sensor ( 26 ) in a common housing ( 1 ) a pressure-transmitting and / or at least easily displaceable force transmission device ( 51 ) is preferably arranged in the form of a cylinder or a disk body,
  • - The space between the power transmission device ( 51 ) and the pressure transmission device ( 26 ) with a pressure transmission medium ( 55 ) is completely filled,
characterized in that the cylindrical force transmission device ( 51 ) has at least one, preferably at least two, ring grooves ( 57 ', 57 ") offset in the axial direction on its outer circumference, into which at least one sealing ring or preferably at least two corresponding sealing rings ( 59 ', 59 ") are used. 2. Transducer, nach Anspruch 1, dadurch gekennzeichnet, dass das Druckübertragungsmedium (55) aus einem Gel be­ steht.2. Transducer according to claim 1, characterized in that the pressure transmission medium ( 55 ) consists of a gel be. 3. Transducer, nach Anspruch 1 und 2, dadurch gekenn­ zeichnet, dass neben der eher zylinderförmigen Kraft­ übertragungseinrichtung (51) ferner noch eine sich an der Kraftübertragungseinrichtung (51) abstützende und/oder darüber gehaltene den zu messenden Druck bzw. die zu messende Kraft ebenfalls übertragende Kugel (11) vorgesehen ist.3. Transducer, according to claim 1 and 2, characterized in that in addition to the more cylindrical force transmission device ( 51 ) is also still on the force transmission device ( 51 ) supported and / or held the pressure to be measured or the force to be measured also transmitting ball ( 11 ) is provided. 4. Transducer, nach Anspruch 3, dadurch gekennzeichnet, dass die Kugel (11) über die das stirnseitige Ende des Gehäuses (1) übersteht und in einer vorzugsweise trich­ terförmigen Vertiefung (61) gestützt und gehalten ist.4. Transducer, according to claim 3, characterized in that the ball ( 11 ) over which the front end of the housing ( 1 ) protrudes and is supported and held in a preferably trich teriform recess ( 61 ). 5. Transducer, nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der zur Kraftübertragungseinrich­ tung (51) an dem Druckaufnehmer (26) gegenüberliegende Abschnitt im Gehäuse (1) mit einer Vergussmasse (47) befüllt ist.5. Transducer, according to one of claims 1 to 4, characterized in that the device for power transmission ( 51 ) on the pressure transducer ( 26 ) opposite section in the housing ( 1 ) is filled with a sealing compound ( 47 ). 6. Transducer, nach Anspruch 5, dadurch gekennzeichnet, dass in der Vergussmasse (47) ferner noch eine Leiter­ platine (41) angeordnet ist, in der entsprechende elek­ trische und/oder elektronische Baugruppen und Bauelemen­ te für die Signalgewinnung, Signalauswertung und/oder Signalverarbeitung vorgesehen sind.6. Transducer, according to claim 5, characterized in that in the potting compound ( 47 ) further a circuit board ( 41 ) is arranged in the corresponding elec trical and / or electronic modules and components for te signal acquisition, signal evaluation and / or Signal processing are provided.
DE20216822U 2002-10-31 2002-10-31 Pressure transducer for indirect measurement of the liquid level in a tank, whereby the tank weight is transferred to the transducer via a pressure transfer medium, thus enabling precise measurements with an inexpensive device Expired - Lifetime DE20216822U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20216822U DE20216822U1 (en) 2002-10-31 2002-10-31 Pressure transducer for indirect measurement of the liquid level in a tank, whereby the tank weight is transferred to the transducer via a pressure transfer medium, thus enabling precise measurements with an inexpensive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20216822U DE20216822U1 (en) 2002-10-31 2002-10-31 Pressure transducer for indirect measurement of the liquid level in a tank, whereby the tank weight is transferred to the transducer via a pressure transfer medium, thus enabling precise measurements with an inexpensive device

Publications (1)

Publication Number Publication Date
DE20216822U1 true DE20216822U1 (en) 2003-08-14

Family

ID=27763059

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20216822U Expired - Lifetime DE20216822U1 (en) 2002-10-31 2002-10-31 Pressure transducer for indirect measurement of the liquid level in a tank, whereby the tank weight is transferred to the transducer via a pressure transfer medium, thus enabling precise measurements with an inexpensive device

Country Status (1)

Country Link
DE (1) DE20216822U1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341795A (en) * 1965-11-19 1967-09-12 Ibm Force transducer
DE3625842C2 (en) * 1986-07-30 1988-10-20 Pfister Gmbh, 8900 Augsburg, De
JPH05118935A (en) * 1991-10-23 1993-05-14 Copal Electron Co Ltd Micro load cell
DE4314296A1 (en) * 1993-04-30 1994-11-03 Hydac Electronic Gmbh Sensor unit with holding clip
DE19512868A1 (en) * 1995-04-06 1996-10-10 Metz Feuerwehrgeraete Gmbh Device for measuring pressure force
US5661245A (en) * 1995-07-14 1997-08-26 Sensym, Incorporated Force sensor assembly with integrated rigid, movable interface for transferring force to a responsive medium
DE19753874A1 (en) * 1997-12-05 1999-06-17 Bosch Gmbh Robert Minute, linear pressure sensor with integral signal conditioning circuitry
WO2000014501A1 (en) * 1998-09-04 2000-03-16 Breed Automotive Technology, Inc. Force sensor assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341795A (en) * 1965-11-19 1967-09-12 Ibm Force transducer
DE3625842C2 (en) * 1986-07-30 1988-10-20 Pfister Gmbh, 8900 Augsburg, De
JPH05118935A (en) * 1991-10-23 1993-05-14 Copal Electron Co Ltd Micro load cell
DE4314296A1 (en) * 1993-04-30 1994-11-03 Hydac Electronic Gmbh Sensor unit with holding clip
DE19512868A1 (en) * 1995-04-06 1996-10-10 Metz Feuerwehrgeraete Gmbh Device for measuring pressure force
US5661245A (en) * 1995-07-14 1997-08-26 Sensym, Incorporated Force sensor assembly with integrated rigid, movable interface for transferring force to a responsive medium
DE19753874A1 (en) * 1997-12-05 1999-06-17 Bosch Gmbh Robert Minute, linear pressure sensor with integral signal conditioning circuitry
WO2000014501A1 (en) * 1998-09-04 2000-03-16 Breed Automotive Technology, Inc. Force sensor assembly

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Legal Events

Date Code Title Description
R163 Identified publications notified
R207 Utility model specification

Effective date: 20030918

R150 Term of protection extended to 6 years

Effective date: 20051027

R151 Term of protection extended to 8 years

Effective date: 20081021

R158 Lapse of ip right after 8 years

Effective date: 20110502