IT1261147B - ELECTRIC PRESSURE TRANSDUCER, PARTICULARLY FOR WASHING MACHINES - Google Patents

ELECTRIC PRESSURE TRANSDUCER, PARTICULARLY FOR WASHING MACHINES

Info

Publication number
IT1261147B
IT1261147B ITTO931018A ITTO931018A IT1261147B IT 1261147 B IT1261147 B IT 1261147B IT TO931018 A ITTO931018 A IT TO931018A IT TO931018 A ITTO931018 A IT TO931018A IT 1261147 B IT1261147 B IT 1261147B
Authority
IT
Italy
Prior art keywords
fluid
springs
membrane
crew
pressure
Prior art date
Application number
ITTO931018A
Other languages
Italian (it)
Inventor
Pietro Gindri
Original Assignee
Elbi Int Spa
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 Elbi Int Spa filed Critical Elbi Int Spa
Priority to ITTO931018A priority Critical patent/IT1261147B/en
Publication of ITTO931018A0 publication Critical patent/ITTO931018A0/en
Priority to FR9414921A priority patent/FR2714728B1/en
Priority to DE4444167A priority patent/DE4444167B4/en
Publication of ITTO931018A1 publication Critical patent/ITTO931018A1/en
Application granted granted Critical
Publication of IT1261147B publication Critical patent/IT1261147B/en

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
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/007—Transmitting or indicating the displacement of flexible diaphragms using variations in inductance

Landscapes

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

Abstract

Il trasduttore comprende un involucro (l-3) con un'apertura (2b) per l'ingresso di un fluido di cui si vuole rilevare la pressione. Nell'involucro (1-3) è montato un equipaggio mobile includente una membrana (6). destinata ad essere investita dal fluido ed a spostarsi in misura dipendente dalla pressione di tale fluido. Alla membrana (6) è associato un nucleo ferromagnetico (10) mobile in un avvolgimento stazionario (8) la cui induttanza varia nel funzionamento in funzione della pressione del fluido che investe la membrana (6). All'equipaggio mobile (6, 9, 10) sono associate almeno due molle (14, 15) che agiscono su tale equipaggio in versi contrari. Almeno una di tali molle (15) presenta una caratteristica carico/deformazione di tipo non-lineare. A tali molle sono .associate rispettivi organi di regolazione (12, 13) che consentono di modificarne il precarico.(Figura 3).The transducer comprises a casing (l-3) with an opening (2b) for the entry of a fluid whose pressure is to be detected. In the casing (1-3) a movable crew is mounted including a membrane (6). intended to be hit by the fluid and to move to an extent dependent on the pressure of this fluid. The membrane (6) is associated with a ferromagnetic core (10) movable in a stationary winding (8) whose inductance varies in operation as a function of the pressure of the fluid that hits the membrane (6). The mobile crew (6, 9, 10) are associated with at least two springs (14, 15) which act on this crew in opposite ways. At least one of these springs (15) has a non-linear characteristic load / deformation. To these springs are associated respective adjustment members (12, 13) which allow to modify their preload (Figure 3).

ITTO931018A 1993-12-30 1993-12-30 ELECTRIC PRESSURE TRANSDUCER, PARTICULARLY FOR WASHING MACHINES IT1261147B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITTO931018A IT1261147B (en) 1993-12-30 1993-12-30 ELECTRIC PRESSURE TRANSDUCER, PARTICULARLY FOR WASHING MACHINES
FR9414921A FR2714728B1 (en) 1993-12-30 1994-12-12 Electric pressure transducer, in particular for washing machines.
DE4444167A DE4444167B4 (en) 1993-12-30 1994-12-12 Electric pressure transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO931018A IT1261147B (en) 1993-12-30 1993-12-30 ELECTRIC PRESSURE TRANSDUCER, PARTICULARLY FOR WASHING MACHINES

Publications (3)

Publication Number Publication Date
ITTO931018A0 ITTO931018A0 (en) 1993-12-30
ITTO931018A1 ITTO931018A1 (en) 1995-06-30
IT1261147B true IT1261147B (en) 1996-05-09

Family

ID=11411989

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO931018A IT1261147B (en) 1993-12-30 1993-12-30 ELECTRIC PRESSURE TRANSDUCER, PARTICULARLY FOR WASHING MACHINES

Country Status (3)

Country Link
DE (1) DE4444167B4 (en)
FR (1) FR2714728B1 (en)
IT (1) IT1261147B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118627A (en) * 2018-02-06 2019-08-13 美的集团股份有限公司 Pressure-detecting device, kitchen appliance for kitchen appliance

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1288780B1 (en) * 1996-10-25 1998-09-24 Elbi Int Spa DIFFERENTIAL ELECTRONIC PRESSURE TRANSDUCER.
IT1293962B1 (en) * 1997-08-11 1999-03-15 Elbi Int Spa OPERATING MACHINE AND USE OF A PRESSURE TRANSDUCER IN AN OPERATING MACHINE.
ITTO20050644A1 (en) 2005-09-20 2007-03-21 Itw Metalflex Druzba Za Proizv SYSTEM FOR DETECTION OF OPERATING PARAMETERS OF A APPLIANCE EQUIPPED WITH A RELATIVELY MOBILE COMPONENT
ITTO20050643A1 (en) * 2005-09-20 2007-03-21 Itw Metalflex Druzba Za Proisv ANALOGUE TRANSLATOR OF POSITION OR OF A CORRELATED PHYSICAL SIZE EQUAL TO THE MECHANICAL CALIBRATION
ITTO20060882A1 (en) 2006-12-13 2008-06-14 Itw Ind Components Srl MONITORING DEVICE FOR THE FEEDING OF AN OPERATIONAL FLUID IN A HOUSEHOLD APPLIANCE, IN PARTICULAR OF A WATER FLOW TOWARDS A WASHER OF A WASHING MACHINE OR DISHWASHER
DE102010022428A1 (en) 2009-06-03 2010-12-09 Marquardt Mechatronik Gmbh sensor
CN206330645U (en) * 2016-09-05 2017-07-14 泰科电子(上海)有限公司 Sensor cluster and liquid level detection device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121924A1 (en) * 1971-05-04 1972-11-23 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection device with an inductive intake manifold pressure converter
FR2478813A1 (en) * 1980-03-21 1981-09-25 Renault PRESSURE SENSOR FOR THE INTAKE OF AN INTERNAL COMBUSTION ENGINE
IT1259576B (en) * 1992-05-08 1996-03-20 Elbi Int Spa ELECTRIC PRESSURE TRANSDUCER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118627A (en) * 2018-02-06 2019-08-13 美的集团股份有限公司 Pressure-detecting device, kitchen appliance for kitchen appliance

Also Published As

Publication number Publication date
FR2714728A1 (en) 1995-07-07
DE4444167B4 (en) 2005-03-24
DE4444167A1 (en) 1995-07-06
FR2714728B1 (en) 1998-11-27
ITTO931018A0 (en) 1993-12-30
ITTO931018A1 (en) 1995-06-30

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19981231