GB2021760A - Optical potentiometers - Google Patents

Optical potentiometers

Info

Publication number
GB2021760A
GB2021760A GB7917124A GB7917124A GB2021760A GB 2021760 A GB2021760 A GB 2021760A GB 7917124 A GB7917124 A GB 7917124A GB 7917124 A GB7917124 A GB 7917124A GB 2021760 A GB2021760 A GB 2021760A
Authority
GB
United Kingdom
Prior art keywords
light
responsive devices
optical
windows
potentiometers
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
GB7917124A
Other versions
GB2021760B (en
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 Honeywell Inc filed Critical Honeywell Inc
Publication of GB2021760A publication Critical patent/GB2021760A/en
Application granted granted Critical
Publication of GB2021760B publication Critical patent/GB2021760B/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adjustable Resistors (AREA)
  • Optical Transform (AREA)

Abstract

An optical potentiometer has a rotatable disc 15 with first and second variably light transmissive windows 41, 42, Fig. 5, a source of light 33, 34 mounted on one side of the windows. Corresponding first and second light responsive devices 36, 51 are mounted on the other side of the window in such a fashion that only one of the light responsive devices receives energizing light at a time. A handle (11, Figs. 1 & 2) moves the disc so that the first and second variable light transmissive windows 41, 42 pass the corresponding first and second light responsive devices 36, 37. A dwell period may be provided between the times when the first and second light responsive devices receive energizing light. <IMAGE>
GB7917124A 1978-05-26 1979-05-16 Optical potentiometers Expired GB2021760B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91004378A 1978-05-26 1978-05-26

Publications (2)

Publication Number Publication Date
GB2021760A true GB2021760A (en) 1979-12-05
GB2021760B GB2021760B (en) 1982-10-13

Family

ID=25428219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7917124A Expired GB2021760B (en) 1978-05-26 1979-05-16 Optical potentiometers

Country Status (6)

Country Link
JP (1) JPS5511395A (en)
AU (1) AU520748B2 (en)
FR (1) FR2434514A1 (en)
GB (1) GB2021760B (en)
IT (1) IT1116539B (en)
SE (1) SE7904492L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096152A2 (en) * 1982-06-08 1983-12-21 Renk Aktiengesellschaft Position detector for a driving mechanism, especially for vehicles
FR2595851A1 (en) * 1986-03-12 1987-09-18 Rexroth Sigma Device for detecting the instantaneous position of a moving member on a trajectory between two end positions, and electric remote control device making use of it

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356397A (en) * 1980-06-18 1982-10-26 Westinghouse Electric Corp. Optical valve position sensor system
US4573110A (en) * 1984-09-28 1986-02-25 Wang Laboratories, Inc. Control device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171034A (en) * 1961-12-21 1965-02-23 Tomasulo Walter Electro-optical control
US3399347A (en) * 1964-01-09 1968-08-27 Bausch & Lomb Photoelectric system for generating a signal proportional to the movement of a meter
US3358150A (en) * 1964-11-27 1967-12-12 Steven E Summer Photoelectric potentiometer with translucent shaft light valve
US3521072A (en) * 1967-08-21 1970-07-21 James W Wipson Variable masking of radiation sensitive areas along x and y axes by pivotally mounted control shaft
US3639769A (en) * 1969-04-10 1972-02-01 William D Clark Photoconductive potentiometer using variable transmittance control strips
GB1277392A (en) * 1970-01-12 1972-06-14 Edward Melville Royds-Jones A photo-electric device for showing wind direction
US3814199A (en) * 1972-08-21 1974-06-04 Cleveland Machine Controls Motor control apparatus adapted for use with a motorized vehicle
US4109147A (en) * 1976-05-10 1978-08-22 Dresser Industries, Inc. Optical position sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096152A2 (en) * 1982-06-08 1983-12-21 Renk Aktiengesellschaft Position detector for a driving mechanism, especially for vehicles
EP0096152A3 (en) * 1982-06-08 1987-02-04 Zahnraderfabrik Renk Aktiengesellschaft Position detector for a driving mechanism, especially for vehicles
FR2595851A1 (en) * 1986-03-12 1987-09-18 Rexroth Sigma Device for detecting the instantaneous position of a moving member on a trajectory between two end positions, and electric remote control device making use of it

Also Published As

Publication number Publication date
AU4713679A (en) 1979-11-29
JPS5511395A (en) 1980-01-26
SE7904492L (en) 1979-11-27
IT1116539B (en) 1986-02-10
GB2021760B (en) 1982-10-13
AU520748B2 (en) 1982-02-25
FR2434514A1 (en) 1980-03-21
IT7949165A0 (en) 1979-05-24

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee