GB540948A - Improvements in or relating to measuring, indicating, recording or control apparatus - Google Patents

Improvements in or relating to measuring, indicating, recording or control apparatus

Info

Publication number
GB540948A
GB540948A GB800340A GB800340A GB540948A GB 540948 A GB540948 A GB 540948A GB 800340 A GB800340 A GB 800340A GB 800340 A GB800340 A GB 800340A GB 540948 A GB540948 A GB 540948A
Authority
GB
United Kingdom
Prior art keywords
moving system
carriage
bar
light sensitive
motor
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.)
Expired
Application number
GB800340A
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.)
FOSTER INSTR Co Ltd
Original Assignee
FOSTER INSTR Co Ltd
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 FOSTER INSTR Co Ltd filed Critical FOSTER INSTR Co Ltd
Priority to GB800340A priority Critical patent/GB540948A/en
Publication of GB540948A publication Critical patent/GB540948A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

540,948. Photo-electric follow-up apparatus. FOSTER INSTRUMENT CO., Ltd., and DOUGLAS, A. May 4, 1940, No. 8033. [Class 40 (iii)] A measuring, indicating, recording, or controlling apparatus including a photo-electric follow-up device comprises a galvanometer with a moving system 3 carrying a mirror 5, a bar 9 pivoted co-axially with the moving system 3 and carrying a pair of .nirrors 7, 8, a source of light 6, a pair of light sensitive devices 11, 12, a carriage device 16 mechanically coupled to the bar 9, and a motor 14 for driving the carriage in one direction or the other under control of the light sensitive devices, whereby the bar and the carriage followup the movements of the moving system 3. When the bar 9 and the moving system 3 point in the same direction, the light misses the light sensitive devices or falls on them equally, and the followup mechanism is at rest. If the moving system moves to one side or the other, one light sensitive device is illuminated more than the other or one is illuminated and the other not, and this causes the motor 14 to run in one direction or the other or controls clutches to transmit motion from the motor in one direction or the other, whereby the carriage 16 is driven by a screw 15 and the bar 9 follows-up the moving system 3. The carriage 16 may be coupled directly with a recording stylus or may operate switches or may move a slider over a potentiometer.
GB800340A 1940-05-04 1940-05-04 Improvements in or relating to measuring, indicating, recording or control apparatus Expired GB540948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB800340A GB540948A (en) 1940-05-04 1940-05-04 Improvements in or relating to measuring, indicating, recording or control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB800340A GB540948A (en) 1940-05-04 1940-05-04 Improvements in or relating to measuring, indicating, recording or control apparatus

Publications (1)

Publication Number Publication Date
GB540948A true GB540948A (en) 1941-11-06

Family

ID=9843912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB800340A Expired GB540948A (en) 1940-05-04 1940-05-04 Improvements in or relating to measuring, indicating, recording or control apparatus

Country Status (1)

Country Link
GB (1) GB540948A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1148761B (en) * 1955-01-20 1963-05-16 Ake Stig Thulin Device for controlling an actuator as a function of the action of a light spot on photoelectric means
DE1248313B (en) * 1962-11-02 1967-08-24 Amphenol Corp Device for amplifying an actual value of a measured variable represented by the position of the pointer of a measuring system
GB2147705A (en) * 1983-10-06 1985-05-15 Sernagiotto Off Mec Monitoring mud sedimentation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1148761B (en) * 1955-01-20 1963-05-16 Ake Stig Thulin Device for controlling an actuator as a function of the action of a light spot on photoelectric means
DE1248313B (en) * 1962-11-02 1967-08-24 Amphenol Corp Device for amplifying an actual value of a measured variable represented by the position of the pointer of a measuring system
GB2147705A (en) * 1983-10-06 1985-05-15 Sernagiotto Off Mec Monitoring mud sedimentation

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