SE9002183L - STROEMNINGSVAKT - Google Patents

STROEMNINGSVAKT

Info

Publication number
SE9002183L
SE9002183L SE9002183A SE9002183A SE9002183L SE 9002183 L SE9002183 L SE 9002183L SE 9002183 A SE9002183 A SE 9002183A SE 9002183 A SE9002183 A SE 9002183A SE 9002183 L SE9002183 L SE 9002183L
Authority
SE
Sweden
Prior art keywords
flow
bending transducer
opening
connexion
inlet
Prior art date
Application number
SE9002183A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9002183D0 (en
Inventor
H Frisch
Original Assignee
Enfo Grundlagen Forschungs Ag
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 Enfo Grundlagen Forschungs Ag filed Critical Enfo Grundlagen Forschungs Ag
Publication of SE9002183D0 publication Critical patent/SE9002183D0/en
Publication of SE9002183L publication Critical patent/SE9002183L/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
    • G01P13/0026—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using deflection of baffle-plates
    • G01P13/0033—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using deflection of baffle-plates with electrical coupling to the indicating device

Abstract

A flow monitor, in particular for monitoring small quantities of fluids flowing momentarily, comprises a casing (1) with an inlet connexion (2) and an outlet connexion (3) and a casing cavity (6) in which is arranged a piezoelectric bending transducer (10). The latter is clamped at one end in a holding area (12) of the casing cavity (6) situated at a distance from the opening (11) of the inlet (2) and is subjected at its free end to the flow of the quantity of fluid. The bending transducer (10) preferably covers the opening (11) at least in part. Below a defined flow of the quantity of fluid per unit of time the bending transducer (10) is fixed with respect to the opening (11), whereas when this value is exceeded the bending transducer (10) is deflected by the flow and thus delivers a measurable charge displacement as a signal. <IMAGE>
SE9002183A 1989-07-06 1990-06-19 STROEMNINGSVAKT SE9002183L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT164589 1989-07-06

Publications (2)

Publication Number Publication Date
SE9002183D0 SE9002183D0 (en) 1990-06-19
SE9002183L true SE9002183L (en) 1991-01-07

Family

ID=3517896

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002183A SE9002183L (en) 1989-07-06 1990-06-19 STROEMNINGSVAKT

Country Status (5)

Country Link
DE (1) DE4016168A1 (en)
FR (1) FR2649482A1 (en)
GB (1) GB2233766B (en)
IT (1) IT1248751B (en)
SE (1) SE9002183L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720577A1 (en) * 1997-05-16 1998-11-19 Bernd Grunwald Differential measuring unit for determining pressure difference between inlet and outlet side of filter
DE102006003948B4 (en) * 2006-01-26 2008-02-07 Greisinger Electronic Gmbh Sensor for determining the strength and / or velocity and / or direction of a flow of a gaseous and / or vaporous medium
DE102020002403A1 (en) * 2020-04-21 2021-11-04 Exel Industries Sa Piezo actuator and piezo actuator array

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1252433A (en) * 1968-01-31 1971-11-03
DE1953523A1 (en) * 1969-10-24 1971-05-19 Siemens Ag Flow monitor, preferably for steam turbine systems
CH524135A (en) * 1971-03-09 1972-06-15 Hess Paul Flow measuring device for liquid and gaseous media
DE3679663D1 (en) * 1986-01-07 1991-07-11 Emi Plc Thorn PRESSURE SENSITIVE FLOW SENSOR.
JPS62165121A (en) * 1986-01-16 1987-07-21 Cosmo Keiki:Kk Flow rate conversion device
EP0288588B1 (en) * 1987-04-25 1990-07-11 D+P Dosier- und Prüftechnik GmbH Flow meter

Also Published As

Publication number Publication date
SE9002183D0 (en) 1990-06-19
DE4016168A1 (en) 1991-01-17
GB2233766A (en) 1991-01-16
IT1248751B (en) 1995-01-27
IT9020567A0 (en) 1990-06-07
GB9013135D0 (en) 1990-08-01
GB2233766B (en) 1994-02-09
IT9020567A1 (en) 1991-12-07
FR2649482A1 (en) 1991-01-11

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Legal Events

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NAV Patent application has lapsed

Ref document number: 9002183-3

Effective date: 19920626