GB1178690A - Digitizer with Absolute Position Transducer Providing Single Line Output - Google Patents

Digitizer with Absolute Position Transducer Providing Single Line Output

Info

Publication number
GB1178690A
GB1178690A GB4198366A GB4198366A GB1178690A GB 1178690 A GB1178690 A GB 1178690A GB 4198366 A GB4198366 A GB 4198366A GB 4198366 A GB4198366 A GB 4198366A GB 1178690 A GB1178690 A GB 1178690A
Authority
GB
United Kingdom
Prior art keywords
contact
shaft
motor
position transducer
scanning arm
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
GB4198366A
Inventor
David Silvester Evans
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.)
Moore Reed Industrial Ltd
Original Assignee
Moore Reed Industrial 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 Moore Reed Industrial Ltd filed Critical Moore Reed Industrial Ltd
Priority to GB4198366A priority Critical patent/GB1178690A/en
Publication of GB1178690A publication Critical patent/GB1178690A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/18—Electric signal transmission systems in which transmission is by pulses using a variable number of pulses in a train

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

1,178,690. Digital shaft encoders. MOORE REED (INDUSTRIAL) Ltd. 19 Dec., 1967 [20 Sept., 1966], No. 41983/66. Heading G4H. An angular position transducer comprises a contact 5 displaceable from a datum position by rotation of input shaft 2, a contact 7 at the datum position and a scanning arm having brushes 9, 9<SP>1</SP> engaging contacts 7 and 5 in turn as it rotates. The arm shaft 3 is driven by a motor 8 which may be a mains synchronous motor. The start output from contact 7 is used to set a flipflop and the differentially timed output from contact 5 resets it. The duration-significant signal from the flip-flop gates clock pulses to a counter the value in which then represents the angle of shaft 2. The clock pulses may be derived from the mains if the motor 8 is synchronous. Alternatively, the motor may be driven synchronously by pulses from a clock pulse generator which are also applied to the gate. The apparatus may be arranged to digitise more than one revolution of shaft 2 either by preventing the flip-flop being reset in the first revolution of the scanning arm or by arranging that the contact 5 and the scanning arm move along spiral or helical paths.
GB4198366A 1966-09-20 1966-09-20 Digitizer with Absolute Position Transducer Providing Single Line Output Expired GB1178690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4198366A GB1178690A (en) 1966-09-20 1966-09-20 Digitizer with Absolute Position Transducer Providing Single Line Output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4198366A GB1178690A (en) 1966-09-20 1966-09-20 Digitizer with Absolute Position Transducer Providing Single Line Output

Publications (1)

Publication Number Publication Date
GB1178690A true GB1178690A (en) 1970-01-21

Family

ID=10422288

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4198366A Expired GB1178690A (en) 1966-09-20 1966-09-20 Digitizer with Absolute Position Transducer Providing Single Line Output

Country Status (1)

Country Link
GB (1) GB1178690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167189A (en) * 1984-11-14 1986-05-21 Vinten Ltd Continuous electrical control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167189A (en) * 1984-11-14 1986-05-21 Vinten Ltd Continuous electrical control device

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