DE4004728A1 - Vorrichtung zur leitung von elektromagnetischen wellen - Google Patents

Vorrichtung zur leitung von elektromagnetischen wellen

Info

Publication number
DE4004728A1
DE4004728A1 DE19904004728 DE4004728A DE4004728A1 DE 4004728 A1 DE4004728 A1 DE 4004728A1 DE 19904004728 DE19904004728 DE 19904004728 DE 4004728 A DE4004728 A DE 4004728A DE 4004728 A1 DE4004728 A1 DE 4004728A1
Authority
DE
Germany
Prior art keywords
light
channel
light channel
opening
receiver
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.)
Withdrawn
Application number
DE19904004728
Other languages
German (de)
English (en)
Inventor
Alfred Ing Scherz
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
Publication of DE4004728A1 publication Critical patent/DE4004728A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/268—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light using optical fibres
    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices
    • G01D5/34723—Scale reading or illumination devices involving light-guides
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE19904004728 1989-02-28 1990-02-15 Vorrichtung zur leitung von elektromagnetischen wellen Withdrawn DE4004728A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT43689A ATA43689A (de) 1989-02-28 1989-02-28 Vorrichtung zur leitung von elektromagnetischen wellen

Publications (1)

Publication Number Publication Date
DE4004728A1 true DE4004728A1 (de) 1990-08-30

Family

ID=3490559

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19904004728 Withdrawn DE4004728A1 (de) 1989-02-28 1990-02-15 Vorrichtung zur leitung von elektromagnetischen wellen

Country Status (3)

Country Link
AT (1) ATA43689A (fr)
DE (1) DE4004728A1 (fr)
FR (1) FR2643710A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113720A1 (de) * 1991-04-26 1992-10-29 Daimler Benz Ag Gabellichtschranke
DE4437348A1 (de) * 1994-10-19 1996-04-25 Schleicher & Co Int Dokumentenvernichter mit einem Schneidwerk und einer Lichtschranke
GB2390897A (en) * 2002-04-11 2004-01-21 Agilent Technologies Inc Optical encoder device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1219833A (en) * 1968-02-29 1971-01-20 Lumenition Ltd Improvements in ignition systems for internal combustion engines
DE2034344A1 (de) * 1970-07-10 1972-01-13 Ulrich H Einrichtung zur Messung physikalischer Großen durch Messung der Intensität eines Lichtstrahlenbundels
DE3630396A1 (de) * 1986-09-06 1988-03-17 Bbc Brown Boveri & Cie Anordnung zur fuellstandsmessung und -ueberwachung einer fluessigkeit in einem behaelter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113720A1 (de) * 1991-04-26 1992-10-29 Daimler Benz Ag Gabellichtschranke
DE4437348A1 (de) * 1994-10-19 1996-04-25 Schleicher & Co Int Dokumentenvernichter mit einem Schneidwerk und einer Lichtschranke
DE4437348C2 (de) * 1994-10-19 2003-11-06 Schleicher & Co Int Ag Dokumentenvernichter mit einem Schneidwerk und einer Lichtschranke
GB2390897A (en) * 2002-04-11 2004-01-21 Agilent Technologies Inc Optical encoder device
GB2390897B (en) * 2002-04-11 2005-08-10 Agilent Technologies Inc Optical encoder device
US6995356B2 (en) 2002-04-11 2006-02-07 Agilent Technologies, Inc. Optical encoder device

Also Published As

Publication number Publication date
ATA43689A (de) 1991-05-15
FR2643710A1 (fr) 1990-08-31

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee