DE10336763A1 - Method for monitoring a measurement based on a resistive sensor, monitoring device and industrial scale - Google Patents

Method for monitoring a measurement based on a resistive sensor, monitoring device and industrial scale Download PDF

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Publication number
DE10336763A1
DE10336763A1 DE2003136763 DE10336763A DE10336763A1 DE 10336763 A1 DE10336763 A1 DE 10336763A1 DE 2003136763 DE2003136763 DE 2003136763 DE 10336763 A DE10336763 A DE 10336763A DE 10336763 A1 DE10336763 A1 DE 10336763A1
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DE
Germany
Prior art keywords
resistive sensor
value
impedance
monitoring
sensor
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.)
Granted
Application number
DE2003136763
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German (de)
Other versions
DE10336763B4 (en
Inventor
Karlheinz Amtmann
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DE2003136763 priority Critical patent/DE10336763B4/en
Priority to CNB2004800228116A priority patent/CN100445714C/en
Priority to EP04763828A priority patent/EP1651936A1/en
Priority to PCT/EP2004/008787 priority patent/WO2005017478A1/en
Publication of DE10336763A1 publication Critical patent/DE10336763A1/en
Application granted granted Critical
Publication of DE10336763B4 publication Critical patent/DE10336763B4/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G01G3/142—Circuits specially adapted therefor
    • G01G3/147—Circuits specially adapted therefor involving digital counting

Abstract

Die Erfindung betrifft ein Verfahren zur Überwachung einer Messung auf Basis eines resistiven Sensors (DMS) zur Erfassung mechanischer Größen (F), insbesondere zur Gewichtserfassung. Bei dem Verfahren wird ein Soll-Impedanzwert (Zo) des resistiven Sensors am Messort bei einer Inbetriebnahme ermittelt, ein Toleranzwert (lim) für eine maximale zulässige Abweichung vom Soll-Impedanzwert vorgegeben, fortlaufend ein Wert (Z*) für die Impedanz (Z) am Messort des resistiven Sensors ermittelt und dann bei einer unzulässigen Abweichung eines aktuellen Impedanzwerts vom Soll-Impedanzwert eine Fehlermeldung (FA) ausgegeben. Damit ist der große Vorteil verbunden, dass ohne Unterbrechung der eigentlichen Gewichts- oder Massemessung (F*) und somit ohne Einschränkungen z. B. auf laufende technische Prozesse in der Fertigungs- oder Automatisierungsindustrie selbst geringfügige Abweichungen der Impedanz des resistiven Sensors im Messaufnehmer (SENS) festgestellt werden können. Es können somit unmittelbar Gegenmaßnahmen in der Fertigung eingeleitet werden. Es ist vorteilhaft der Ausfall eines resistiven Sensors in einer Vielzahl von untereinander parallel und/oder seriell verschalteten resistiven Sensoren erkennbar.The invention relates to a method for monitoring a measurement based on a resistive sensor (DMS) for detecting mechanical variables (F), in particular for weight detection. In the method, a setpoint impedance value (Zo) of the resistive sensor at the measurement location is determined during a startup, a tolerance value (lim) given for a maximum permissible deviation from the setpoint impedance value, continuously a value (Z *) for the impedance (Z) determined at the measuring location of the resistive sensor and then output an error message (FA) at an impermissible deviation of a current impedance value of the target impedance value. This has the great advantage that without interrupting the actual weight or mass measurement (F *) and thus without restrictions z. B. on running technical processes in the manufacturing or automation industry even slight deviations of the impedance of the resistive sensor in the sensor (SENS) can be determined. It can thus be initiated immediate countermeasures in manufacturing. It is advantageous to detect the failure of a resistive sensor in a multiplicity of resistive sensors interconnected in parallel and / or in series.

DE2003136763 2003-08-08 2003-08-08 Method for monitoring a measurement based on a resistive sensor, monitoring device and industrial scale Expired - Lifetime DE10336763B4 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE2003136763 DE10336763B4 (en) 2003-08-08 2003-08-08 Method for monitoring a measurement based on a resistive sensor, monitoring device and industrial scale
CNB2004800228116A CN100445714C (en) 2003-08-08 2004-08-05 Method for monitoring a measurement using a resistive sensor, monitoring device and industrial scale
EP04763828A EP1651936A1 (en) 2003-08-08 2004-08-05 Method for monitoring a measurement using a resistive sensor, monitoring device and industrial scale
PCT/EP2004/008787 WO2005017478A1 (en) 2003-08-08 2004-08-05 Method for monitoring a measurement using a resistive sensor, monitoring device and industrial scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003136763 DE10336763B4 (en) 2003-08-08 2003-08-08 Method for monitoring a measurement based on a resistive sensor, monitoring device and industrial scale

Publications (2)

Publication Number Publication Date
DE10336763A1 true DE10336763A1 (en) 2005-03-10
DE10336763B4 DE10336763B4 (en) 2013-09-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE2003136763 Expired - Lifetime DE10336763B4 (en) 2003-08-08 2003-08-08 Method for monitoring a measurement based on a resistive sensor, monitoring device and industrial scale

Country Status (4)

Country Link
EP (1) EP1651936A1 (en)
CN (1) CN100445714C (en)
DE (1) DE10336763B4 (en)
WO (1) WO2005017478A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7426109B2 (en) 2005-11-16 2008-09-16 Dell Products L.P. System and method for adaptive information handling system cooling profiles
US7809478B2 (en) 2008-01-30 2010-10-05 Dell Products L.P. System and method for managing portable information handling system cooling
CN104716952B (en) * 2013-12-16 2018-07-06 中核兰州铀浓缩有限公司 External equivalent device and equivalent regeneration method after the fracture of backflow sensor electric bridge
CH708761A2 (en) * 2015-03-03 2015-04-30 Tecpharma Licensing Ag Measuring bridge arrangement with improved fault detection.
DE102021130852B3 (en) * 2021-11-24 2023-02-16 Elmos Semiconductor Se Identification of the wetting of NTC temperature measurement resistors in safety-related devices

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216044A (en) 1962-10-22 1965-11-09 Diamond Power Speciality Long travel soot blower with contoured rail
US4310893A (en) * 1979-12-12 1982-01-12 Reliance Electric Company Digital scale
US4453159A (en) 1981-09-28 1984-06-05 Thermon Manufacturing Company Self-monitoring heat tracing system
US4572309A (en) * 1983-11-15 1986-02-25 Tokyo Electric Co., Ltd. Load cell type weight-measuring device
US4716401A (en) * 1985-09-19 1987-12-29 Deere & Company Tamper-resistant supervisory system
GB8705192D0 (en) * 1987-03-05 1987-04-08 Secr Defence Transducer signal conditioner
KR970001610B1 (en) * 1987-07-16 1997-02-11 가부시끼가이샤 이시다고우끼세이사꾸쇼 Load detector circuit
DE4015042A1 (en) 1990-05-10 1991-11-14 Siemens Ag DEVICE FOR ANALOG-DIGITAL CONVERTING A MEASURING SIZE PRODUCED BY SENSORS ARRANGED IN BRIDGE CIRCUIT, IN PARTICULAR OF STRETCH MEASUREMENT STRIPS IN A WEIGHT CELL
US5287065A (en) 1991-10-04 1994-02-15 Doble Engineering Company Automatic bridge balancing using controllable impedance in characterizing unknown impedance
CN2116205U (en) * 1992-03-14 1992-09-16 柳州市建筑机械总厂 Thick bearer cable stress sensor
US5371469A (en) * 1993-02-16 1994-12-06 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Constant current loop impedance measuring system that is immune to the effects of parasitic impedances
DE4319750C2 (en) 1993-06-15 1997-01-23 Grieshaber Vega Kg Method and device for function monitoring of switching devices of a bridge circuit and their use
CN2403013Y (en) * 1999-12-29 2000-10-25 赵国贵 Anchor bolt pulling force tester

Also Published As

Publication number Publication date
WO2005017478A1 (en) 2005-02-24
EP1651936A1 (en) 2006-05-03
CN100445714C (en) 2008-12-24
DE10336763B4 (en) 2013-09-05
CN1833162A (en) 2006-09-13

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Effective date: 20131206

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