GB1423373A - Angular positions transducer apparatus - Google Patents

Angular positions transducer apparatus

Info

Publication number
GB1423373A
GB1423373A GB237273A GB237273A GB1423373A GB 1423373 A GB1423373 A GB 1423373A GB 237273 A GB237273 A GB 237273A GB 237273 A GB237273 A GB 237273A GB 1423373 A GB1423373 A GB 1423373A
Authority
GB
United Kingdom
Prior art keywords
photo
line
light
gate
sweep direction
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
GB237273A
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.)
Hunter Engineering Co
Original Assignee
Hunter Engineering Co
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 Hunter Engineering Co filed Critical Hunter Engineering Co
Priority to GB237273A priority Critical patent/GB1423373A/en
Publication of GB1423373A publication Critical patent/GB1423373A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/275—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment
    • G01B11/2755—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment using photoelectric detection means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/10—Wheel alignment
    • G01B2210/28—Beam projector and related sensors, camera, inclinometer or other active sensing or projecting device
    • G01B2210/283—Beam projectors and related sensors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Body Structure For Vehicles (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

1423373 Photo-electric measurement HUNTER ENG CO 17 Jan 1973 2372/73 Heading G1A The angular disposition of a body relative to a reference line is measured by sweeping a light beam across the line from a source on the body and detecting when the beam is along the line to gate a signal generated in accordance with the beam angle to a display, the gating only being operative for one sweep direction. To measure the toe of vehicle wheels, frames 25, 25A adjustably mounted on respective wheels are aligned to define the reference axis R. Each frame contains a photo-cell 61, light source 50 and a lens assembly oscillated in a horizontal plane by an electric motor 35 and eccentric cam 39. A chopper disc 44 produces light pulses at 1KHz to reduce extraneous light interference and a potentiometer 42 driven through 1:1 gears produces a ramp output proportional to beam angle. The photo-cell outputs are amplified (62), Fig. 10 (not shown), sharpened by a monostable and differentiator and fed to a comparator which only passes pulses occuring in one sweep direction to a gate allowing the ramp voltage at that instant to be displayed and held in a memory until the next reading.
GB237273A 1973-01-17 1973-01-17 Angular positions transducer apparatus Expired GB1423373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB237273A GB1423373A (en) 1973-01-17 1973-01-17 Angular positions transducer apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB237273A GB1423373A (en) 1973-01-17 1973-01-17 Angular positions transducer apparatus

Publications (1)

Publication Number Publication Date
GB1423373A true GB1423373A (en) 1976-02-04

Family

ID=9738390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB237273A Expired GB1423373A (en) 1973-01-17 1973-01-17 Angular positions transducer apparatus

Country Status (1)

Country Link
GB (1) GB1423373A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2343221A1 (en) * 1976-03-01 1977-09-30 Applied Power Inc DEVICE FOR MEASURING ANGLE RELATIONSHIPS OF VEHICLE WHEELS
US4167817A (en) * 1978-02-27 1979-09-18 Lee Hunter Adaptor for mounting wheel alignment instruments on vehicular wheels
EP0034923A1 (en) * 1980-02-19 1981-09-02 Hein-Werner Corporation Target structure for use with a vehicle wheel alignment apparatus
EP0774646A1 (en) * 1995-11-14 1997-05-21 Knestel Elektronik GmbH Procedure and device to assess the axes and the wheel positions on cars

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2343221A1 (en) * 1976-03-01 1977-09-30 Applied Power Inc DEVICE FOR MEASURING ANGLE RELATIONSHIPS OF VEHICLE WHEELS
US4167817A (en) * 1978-02-27 1979-09-18 Lee Hunter Adaptor for mounting wheel alignment instruments on vehicular wheels
EP0034923A1 (en) * 1980-02-19 1981-09-02 Hein-Werner Corporation Target structure for use with a vehicle wheel alignment apparatus
EP0774646A1 (en) * 1995-11-14 1997-05-21 Knestel Elektronik GmbH Procedure and device to assess the axes and the wheel positions on cars

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee