ES2078204T3 - Celula de carga con componentes de calibracion modular. - Google Patents

Celula de carga con componentes de calibracion modular.

Info

Publication number
ES2078204T3
ES2078204T3 ES95102625T ES95102625T ES2078204T3 ES 2078204 T3 ES2078204 T3 ES 2078204T3 ES 95102625 T ES95102625 T ES 95102625T ES 95102625 T ES95102625 T ES 95102625T ES 2078204 T3 ES2078204 T3 ES 2078204T3
Authority
ES
Spain
Prior art keywords
eeprom
counter
circuit board
load cell
digital
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
ES95102625T
Other languages
English (en)
Other versions
ES2078204T1 (es
Inventor
Steven R Grimm
Richard C Loshbough
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.)
Mettler Toledo International Inc
Original Assignee
Mettler Toledo LLC
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 Mettler Toledo LLC filed Critical Mettler Toledo LLC
Publication of ES2078204T1 publication Critical patent/ES2078204T1/es
Application granted granted Critical
Publication of ES2078204T3 publication Critical patent/ES2078204T3/es
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
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/225—Measuring circuits therefor
    • G01L1/2262—Measuring circuits therefor involving simple electrical bridges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
    • G01G3/1402—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01G3/1406—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports combined with special measuring circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/18—Temperature-compensating arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2268—Arrangements for correcting or for compensating unwanted effects

Abstract

UNA CELULA DE CARGA DIGITAL COMPRENDE UN EEPROM QUE ESTA PERMANENTEMENTE FIJADO A LA CONTRAFUERZA JUNTO CON UN DETECTOR DE TEMPERATURA Y UNA PLURALIDAD DE INDICADORES DE ESFUERZO. LOS INDICADORES DE ESFUERZO ESTAN MONTADOS SOBRE LA CONTRAFUERZA EN LA CONFIGURACION ELECTRICA DE UN PUENTE DE PIEDRA DE AFILAR COMPLETO. EL EEPROM Y EL PUENTE ESTAN CONECTADOS A UN CIRCUITO FLEXIBLE QUE SE PUEDE CONECTAR SEPARADAMENTE EN COMUNICACION ELECTRICA CON CIRCUITOS QUE COMPRENDE UN PROCESADOR Y UN CONVERTIDOR ANALOGICO A DIGITAL, QUE PUEDE ESTAR MONTADO PERMANENTEMENTE SOBRE UN TABLERO DE CIRCUITO LOCAL SEPARADO FISICAMENTE DEL EEPROM. EL TABLERO DE CIRCUITO LOCAL FUNCIONA DE UNA MANERA QUE EL EEPROM PUEDE SER PROGRAMADO PARA ALMACENAR LOS FACTORES DE CALIBRACION/CORRECCION QUE SE HAN DE APLICAR POR EL PROCESADOR A LAS SEÑALES DE CALIBRACION DIGITALES DEL CONVERTIDOR ANALOGICO A DIGITAL. EL TABLERO DE CIRCUITO LOCAL SE ASOCIAD CON, Y ALTERNATIVAMENTE PUEDE SER FIJADO AMOVIBLEMENTE A, LA CONTRAFUERZA.
ES95102625T 1994-03-01 1995-02-23 Celula de carga con componentes de calibracion modular. Expired - Lifetime ES2078204T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/204,057 US5623128A (en) 1994-03-01 1994-03-01 Load cell with modular calibration components

Publications (2)

Publication Number Publication Date
ES2078204T1 ES2078204T1 (es) 1995-12-16
ES2078204T3 true ES2078204T3 (es) 1999-10-01

Family

ID=22756440

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95102625T Expired - Lifetime ES2078204T3 (es) 1994-03-01 1995-02-23 Celula de carga con componentes de calibracion modular.

Country Status (10)

Country Link
US (1) US5623128A (es)
EP (1) EP0670479B1 (es)
JP (1) JPH0835894A (es)
CN (1) CN1111723C (es)
AU (1) AU683329B2 (es)
BR (1) BR9500776A (es)
CA (1) CA2141635C (es)
DE (2) DE69510838T2 (es)
ES (1) ES2078204T3 (es)
NZ (1) NZ270529A (es)

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Also Published As

Publication number Publication date
CN1111750A (zh) 1995-11-15
DE670479T1 (de) 1996-03-14
CA2141635C (en) 2002-12-03
BR9500776A (pt) 1995-11-21
EP0670479B1 (en) 1999-07-21
AU1149095A (en) 1995-09-07
DE69510838D1 (de) 1999-08-26
AU683329B2 (en) 1997-11-06
CN1111723C (zh) 2003-06-18
JPH0835894A (ja) 1996-02-06
NZ270529A (en) 1997-12-19
US5623128A (en) 1997-04-22
EP0670479A1 (en) 1995-09-06
DE69510838T2 (de) 2000-02-10
CA2141635A1 (en) 1995-09-02
ES2078204T1 (es) 1995-12-16

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