FR2389112A1 - Electrohydraulic weighing scales construction - includes support plate defining part of hydraulic chamber with membrane and strain gauge - Google Patents

Electrohydraulic weighing scales construction - includes support plate defining part of hydraulic chamber with membrane and strain gauge

Info

Publication number
FR2389112A1
FR2389112A1 FR7713270A FR7713270A FR2389112A1 FR 2389112 A1 FR2389112 A1 FR 2389112A1 FR 7713270 A FR7713270 A FR 7713270A FR 7713270 A FR7713270 A FR 7713270A FR 2389112 A1 FR2389112 A1 FR 2389112A1
Authority
FR
France
Prior art keywords
support plate
strain gauge
membrane
electrohydraulic
construction
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.)
Withdrawn
Application number
FR7713270A
Other languages
French (fr)
Inventor
Charles Naly
Jacques Pelot
Daniel Bickel
Philippe Maire
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.)
4 M MICRO MECA MAT MEDICAL ASS
Original Assignee
4 M MICRO MECA MAT MEDICAL ASS
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 4 M MICRO MECA MAT MEDICAL ASS filed Critical 4 M MICRO MECA MAT MEDICAL ASS
Priority to FR7713270A priority Critical patent/FR2389112A1/en
Publication of FR2389112A1 publication Critical patent/FR2389112A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/44Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
    • G01G19/445Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons in a horizontal position

Landscapes

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

Abstract

Hydraulic scales for weighing the sick comprise a pressure transducer of electromechanical type. A cylindrical block supports on its upper face three rest zones and a support plate with three resilient bellows co-operating with the rest zones. The central part of the cylinder contains a pressure chamber enclosing an incompressible fluid. The upper part of the chamber is defined by the support plate while a deformable membrane with attached strain gauge forms the lower part. The output of the strain gauge is fed to a processing circuit and display for weight read out.
FR7713270A 1977-04-27 1977-04-27 Electrohydraulic weighing scales construction - includes support plate defining part of hydraulic chamber with membrane and strain gauge Withdrawn FR2389112A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7713270A FR2389112A1 (en) 1977-04-27 1977-04-27 Electrohydraulic weighing scales construction - includes support plate defining part of hydraulic chamber with membrane and strain gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7713270A FR2389112A1 (en) 1977-04-27 1977-04-27 Electrohydraulic weighing scales construction - includes support plate defining part of hydraulic chamber with membrane and strain gauge

Publications (1)

Publication Number Publication Date
FR2389112A1 true FR2389112A1 (en) 1978-11-24

Family

ID=9190219

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7713270A Withdrawn FR2389112A1 (en) 1977-04-27 1977-04-27 Electrohydraulic weighing scales construction - includes support plate defining part of hydraulic chamber with membrane and strain gauge

Country Status (1)

Country Link
FR (1) FR2389112A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869266A (en) * 1985-12-31 1989-09-26 Stonecrest Systems, Inc. Patient monitoring unit for surgical use
DE19706836A1 (en) * 1997-02-21 1998-09-03 Pfreundt Gmbh & Co Kg Weight determination arrangement for hydraulically movable component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869266A (en) * 1985-12-31 1989-09-26 Stonecrest Systems, Inc. Patient monitoring unit for surgical use
DE19706836A1 (en) * 1997-02-21 1998-09-03 Pfreundt Gmbh & Co Kg Weight determination arrangement for hydraulically movable component
DE19706836C2 (en) * 1997-02-21 1999-04-08 Pfreundt Gmbh & Co Kg Device for determining the weight of a hydraulically movable component

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Legal Events

Date Code Title Description
ST Notification of lapse