WO2013053905A3 - Pressure sensor and method for checking the function of a pressure sensor - Google Patents

Pressure sensor and method for checking the function of a pressure sensor Download PDF

Info

Publication number
WO2013053905A3
WO2013053905A3 PCT/EP2012/070295 EP2012070295W WO2013053905A3 WO 2013053905 A3 WO2013053905 A3 WO 2013053905A3 EP 2012070295 W EP2012070295 W EP 2012070295W WO 2013053905 A3 WO2013053905 A3 WO 2013053905A3
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
pressure sensor
zener
diode
pressure
Prior art date
Application number
PCT/EP2012/070295
Other languages
German (de)
French (fr)
Other versions
WO2013053905A2 (en
Inventor
Markus Messmer
Rolf Mueller
Heinz Walter
Original Assignee
Ifm Electronic Gmbh
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 Ifm Electronic Gmbh filed Critical Ifm Electronic Gmbh
Priority to DE112012002911.9T priority Critical patent/DE112012002911B4/en
Publication of WO2013053905A2 publication Critical patent/WO2013053905A2/en
Publication of WO2013053905A3 publication Critical patent/WO2013053905A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K15/00—Testing or calibrating of thermometers
    • G01K15/007—Testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/01—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using semiconducting elements having PN junctions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
    • G01L27/007—Malfunction diagnosis, i.e. diagnosing a sensor defect

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The invention illustrates and describes a method for checking the function of a pressure sensor for sensing the pressure prevailing in a medium, wherein the pressure sensor has a pressure measurement cell with at least one measuring transducer and a temperature measuring sensor which is in the form of a diode, in particular a zener diode, and is intended to sense the temperature prevailing in the pressure measurement cell, and such a pressure sensor. According to the invention, the diode is alternately operated in the forward direction and in the reverse direction and a temperature-dependent forward voltage or a temperature-dependent zener voltage is measured in this case. The two characteristic curves of the forward voltage and of the zener voltage against the temperature were previously stored in a look-up table in an adjustment procedure. The associated temperature from the look-up table is respectively associated with the two measured values of the forward and zener voltages and the difference between the two temperatures is then determined. If the value of zero is significantly exceeded or undershot, a defective function of the temperature measuring sensor can therefore be detected.
PCT/EP2012/070295 2011-10-14 2012-10-12 Pressure sensor and method for checking the function of a pressure sensor WO2013053905A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112012002911.9T DE112012002911B4 (en) 2011-10-14 2012-10-12 Pressure sensor and method for checking the function of a pressure sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011084514A DE102011084514A1 (en) 2011-10-14 2011-10-14 Method for checking the function of a pressure sensor
DE102011084514.3 2011-10-14

Publications (2)

Publication Number Publication Date
WO2013053905A2 WO2013053905A2 (en) 2013-04-18
WO2013053905A3 true WO2013053905A3 (en) 2014-03-20

Family

ID=47018218

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/070295 WO2013053905A2 (en) 2011-10-14 2012-10-12 Pressure sensor and method for checking the function of a pressure sensor

Country Status (2)

Country Link
DE (2) DE102011084514A1 (en)
WO (1) WO2013053905A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015222756A1 (en) * 2015-11-18 2017-05-18 Robert Bosch Gmbh Sensor element for a pressure sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126826A (en) * 1977-09-19 1978-11-21 National Semiconductor Corporation Measurement system signal isolation
GB2263975A (en) * 1992-01-22 1993-08-11 Rover Group A method of detecting malfunction of a piezoelectric sensor
DE102008020862B3 (en) * 2008-04-25 2009-05-14 Siemens Aktiengesellschaft Measuring transducer for detecting e.g. temperature of medium, has switch, resistor, analog-to-digital converter and microcontroller monitoring status of sensors by which PN-transition is shiftable in trial operation in conducting direction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250991A (en) * 1962-06-29 1966-05-10 Frontier Dev Inc Temperature measuring bridge circuit having a pair of zener diodes as part of the bridge circuit
US3413853A (en) * 1966-04-11 1968-12-03 Gen Electric Zener diode temperature meter
US5329818A (en) * 1992-05-28 1994-07-19 Rosemount Inc. Correction of a pressure indication in a pressure transducer due to variations of an environmental condition
DE102004035014A1 (en) 2004-07-20 2006-02-16 Joachim Krieger Sensor array for accurate and reliable process temperature measurement, includes sensors with impedance-temperature coefficients differing in magnitude and sign

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126826A (en) * 1977-09-19 1978-11-21 National Semiconductor Corporation Measurement system signal isolation
GB2263975A (en) * 1992-01-22 1993-08-11 Rover Group A method of detecting malfunction of a piezoelectric sensor
DE102008020862B3 (en) * 2008-04-25 2009-05-14 Siemens Aktiengesellschaft Measuring transducer for detecting e.g. temperature of medium, has switch, resistor, analog-to-digital converter and microcontroller monitoring status of sensors by which PN-transition is shiftable in trial operation in conducting direction

Also Published As

Publication number Publication date
WO2013053905A2 (en) 2013-04-18
DE112012002911A5 (en) 2014-03-20
DE102011084514A1 (en) 2013-04-18
DE112012002911B4 (en) 2016-03-31

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