WO1998048245A3 - Sensor device for inductive displacement measurement of switching contacts of electromagnetic switchgear and electromagnetic switchgear with a sensor device for inductive displacement measurement - Google Patents

Sensor device for inductive displacement measurement of switching contacts of electromagnetic switchgear and electromagnetic switchgear with a sensor device for inductive displacement measurement Download PDF

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Publication number
WO1998048245A3
WO1998048245A3 PCT/DE1998/000992 DE9800992W WO9848245A3 WO 1998048245 A3 WO1998048245 A3 WO 1998048245A3 DE 9800992 W DE9800992 W DE 9800992W WO 9848245 A3 WO9848245 A3 WO 9848245A3
Authority
WO
WIPO (PCT)
Prior art keywords
sensor device
displacement measurement
inductive displacement
switching contacts
electromagnetic switchgear
Prior art date
Application number
PCT/DE1998/000992
Other languages
German (de)
French (fr)
Other versions
WO1998048245A2 (en
Inventor
Uwe Scheffel
Original Assignee
Kloeckner Moeller 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 Kloeckner Moeller Gmbh filed Critical Kloeckner Moeller Gmbh
Publication of WO1998048245A2 publication Critical patent/WO1998048245A2/en
Publication of WO1998048245A3 publication Critical patent/WO1998048245A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
    • G01D5/2046—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by a movable ferromagnetic element, e.g. a core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention relates to a sensor device for inductive displacement measurement of electric switching contacts in electromagnetic switchgear, with a power source (12) for producing an alternating current, at least one exciting coil (2) polarized by the alternating current, and at least one measuring coil (4) inductively coupled with the exciting coil (2), and a mobile core (8) which penetrates both coils (2, 4), at least in part, for detecting an electric signal that is produced in accordance with the distance covered by the switching contacts. The sensor device has a compensating coil (6) with a core (10) which moves in accordance with the displacement of the switching contacts and penetrates the compensation coil (6) at least in part.
PCT/DE1998/000992 1997-04-21 1998-04-08 Sensor device for inductive displacement measurement of switching contacts of electromagnetic switchgear and electromagnetic switchgear with a sensor device for inductive displacement measurement WO1998048245A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997116607 DE19716607A1 (en) 1997-04-21 1997-04-21 Sensor device for inductive displacement measurement of switching contacts of electromagnetic switching devices and electromagnetic switching device with a sensor device for inductive displacement measurement
DE19716607.5 1997-04-21

Publications (2)

Publication Number Publication Date
WO1998048245A2 WO1998048245A2 (en) 1998-10-29
WO1998048245A3 true WO1998048245A3 (en) 1999-03-11

Family

ID=7827154

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/000992 WO1998048245A2 (en) 1997-04-21 1998-04-08 Sensor device for inductive displacement measurement of switching contacts of electromagnetic switchgear and electromagnetic switchgear with a sensor device for inductive displacement measurement

Country Status (2)

Country Link
DE (1) DE19716607A1 (en)
WO (1) WO1998048245A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006125543A2 (en) * 2005-05-25 2006-11-30 Stopinc Aktiengesellschaft Sliding closure for metallurgical vessels
DE102010061955B4 (en) * 2010-11-25 2014-03-13 Rolls-Royce Deutschland Ltd & Co Kg Inductive sensor
DE202011000403U1 (en) * 2011-02-22 2012-05-23 Rollax Gmbh & Co. Kg Inductive displacement measuring device
DE102019101074B4 (en) * 2019-01-16 2021-08-12 Phoenix Contact Gmbh & Co. Kg Relay, arrangement and method for determining an armature position of a relay

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960597A1 (en) * 1969-12-03 1971-06-09 Licentia Gmbh Process for the production of a circuit board with contact poles in the manner of a printed circuit
FR2364432A2 (en) * 1976-09-09 1978-04-07 Merlin Gerin Position detector without mechanical contact - partic. useful for detecting position of rods in a nuclear reactor
CH664851A5 (en) * 1984-04-05 1988-03-31 Sprecher & Schuh Gmbh Switch position indicator for HV earthing switch
DE4406250A1 (en) * 1993-02-25 1994-09-01 Westinghouse Electric Corp Electronic status display for electromagnetic contactor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960597A1 (en) * 1969-12-03 1971-06-09 Licentia Gmbh Process for the production of a circuit board with contact poles in the manner of a printed circuit
FR2364432A2 (en) * 1976-09-09 1978-04-07 Merlin Gerin Position detector without mechanical contact - partic. useful for detecting position of rods in a nuclear reactor
CH664851A5 (en) * 1984-04-05 1988-03-31 Sprecher & Schuh Gmbh Switch position indicator for HV earthing switch
DE4406250A1 (en) * 1993-02-25 1994-09-01 Westinghouse Electric Corp Electronic status display for electromagnetic contactor
US5539608A (en) * 1993-02-25 1996-07-23 Eaton Corporation Electronic interlock for electromagnetic contactor

Also Published As

Publication number Publication date
DE19716607A1 (en) 1998-10-22
WO1998048245A2 (en) 1998-10-29

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