WO1989002584A3 - Weighing apparatus for vehicles - Google Patents

Weighing apparatus for vehicles

Info

Publication number
WO1989002584A3
WO1989002584A3 PCT/GB1988/000750 GB8800750W WO8902584A3 WO 1989002584 A3 WO1989002584 A3 WO 1989002584A3 GB 8800750 W GB8800750 W GB 8800750W WO 8902584 A3 WO8902584 A3 WO 8902584A3
Authority
WO
WIPO (PCT)
Prior art keywords
plate
plate structure
light
vehicle
emerging
Prior art date
Application number
PCT/GB1988/000750
Other languages
French (fr)
Other versions
WO1989002584A2 (en
Inventor
Owen Reginald Hemstridge
Original Assignee
Talent Controls Limited
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 Talent Controls Limited filed Critical Talent Controls Limited
Publication of WO1989002584A2 publication Critical patent/WO1989002584A2/en
Publication of WO1989002584A3 publication Critical patent/WO1989002584A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/125—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing wherein the weighing element is an optical member
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/241—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet by photoelastic stress analysis

Abstract

The invention provides a load measuring apparatus for weighing vehicles. The cell is in the form of a plate structure which is of such small thickness that the vehicle wheel can be driven onto the plate structure without the use of a ramp. The plate structure comprises or embodies light transmitting material, a polarised light source which sends a beam of polarised light through the light transmitter material in a direction in the plane of the plate structure, and a polarizer and photodetector are located to detect the light beam emerging from the plate, the intensity of the emerging beam being an indication of the compressive weight or load on the plate. A plurality of the plate structures are used for the respective wheels of the vehicle and an electronic processor is used to provide indications of the loads on the cells to give total vehicle weight.
PCT/GB1988/000750 1987-09-17 1988-09-20 Weighing apparatus for vehicles WO1989002584A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878721873A GB8721873D0 (en) 1987-09-17 1987-09-17 Weighing apparatus
GB8721873 1987-09-17

Publications (2)

Publication Number Publication Date
WO1989002584A2 WO1989002584A2 (en) 1989-03-23
WO1989002584A3 true WO1989002584A3 (en) 1989-04-20

Family

ID=10623930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1988/000750 WO1989002584A2 (en) 1987-09-17 1988-09-20 Weighing apparatus for vehicles

Country Status (3)

Country Link
AU (1) AU2526988A (en)
GB (1) GB8721873D0 (en)
WO (1) WO1989002584A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129847A1 (en) * 1981-07-29 1983-02-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method and arrangement for measuring mechanical quantities
EP0120999A2 (en) * 1983-03-30 1984-10-10 Licentia Patent-Verwaltungs-GmbH Fibre-optic sensor for force and pressure measurements, as well as for monitoring and protection purposes
US4556791A (en) * 1983-06-07 1985-12-03 Sperry Corporation Photoelastic sensor using a variable intensity light source as a feedback means
US4560016A (en) * 1983-12-14 1985-12-24 Anco Engineers, Incorporated Method and apparatus for measuring the weight of a vehicle while the vehicle is in motion
JPH06141933A (en) * 1992-11-13 1994-05-24 Matsushita Electric Works Ltd L type housing utensil and its installation structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129847A1 (en) * 1981-07-29 1983-02-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method and arrangement for measuring mechanical quantities
EP0120999A2 (en) * 1983-03-30 1984-10-10 Licentia Patent-Verwaltungs-GmbH Fibre-optic sensor for force and pressure measurements, as well as for monitoring and protection purposes
US4556791A (en) * 1983-06-07 1985-12-03 Sperry Corporation Photoelastic sensor using a variable intensity light source as a feedback means
US4560016A (en) * 1983-12-14 1985-12-24 Anco Engineers, Incorporated Method and apparatus for measuring the weight of a vehicle while the vehicle is in motion
JPH06141933A (en) * 1992-11-13 1994-05-24 Matsushita Electric Works Ltd L type housing utensil and its installation structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, vol. 10, no. 198, (P-476)(2254) 11 July 1986; & JP-A-6141933 (NIPPON TELEGR. & TELEPH. CORP.) 28 February 1986 *

Also Published As

Publication number Publication date
GB8721873D0 (en) 1987-10-21
AU2526988A (en) 1989-04-17
WO1989002584A2 (en) 1989-03-23

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