GB1475287A - Recording arrangements - Google Patents

Recording arrangements

Info

Publication number
GB1475287A
GB1475287A GB4502073A GB4502073A GB1475287A GB 1475287 A GB1475287 A GB 1475287A GB 4502073 A GB4502073 A GB 4502073A GB 4502073 A GB4502073 A GB 4502073A GB 1475287 A GB1475287 A GB 1475287A
Authority
GB
United Kingdom
Prior art keywords
light source
recording
monostable
plate
beams
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
GB4502073A
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.)
Hall E E
Plessey Co Ltd
Original Assignee
Hall E E
Plessey 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 Hall E E, Plessey Co Ltd filed Critical Hall E E
Priority to GB4502073A priority Critical patent/GB1475287A/en
Publication of GB1475287A publication Critical patent/GB1475287A/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/12—Recording devices
    • G01P1/127—Recording devices for acceleration values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses

Abstract

1475287 Shock recording apparatus PLESSEY CO Ltd and E E HALL 4 Dec 1974 [26 Sept 1973] 45020/73 Headings G1J G1K and G1W [Also in Division G3] A recording arrangement for recording the number and degree of mechanical shocks experienced by a package, comprises a cantilever beam A which is arranged so as to be deformed in response to a mechanical shock, a photographic plate P disposed adjacent the free end of the beam A, and means associated with the beam A for causing the plate P to be exposed to light to afford a record of the deformation of the beam. Said means may comprise an optical fibre O and light source S. Three cantilever beams may be provided along three co-ordinate axes each beam having a corresponding plate P but preferably sharing a common light source. The light source may be operable only for a period of time when one or more of the beams are in the vicinity of maximum deformation, this being effected by a transducer associated with each co-ordinate axis and monostable means arranged to be triggered when the output of at least one of the transducers exceeds a predetermined level, the monostable means operating the light source. Said means may comprise a dual monostable circuit and the light source a cold cathode spark gap. A mass M may be associated with each beam A, the position of the mass along its respective beam defining the bending characteristics thereof.
GB4502073A 1974-12-04 1974-12-04 Recording arrangements Expired GB1475287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4502073A GB1475287A (en) 1974-12-04 1974-12-04 Recording arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4502073A GB1475287A (en) 1974-12-04 1974-12-04 Recording arrangements

Publications (1)

Publication Number Publication Date
GB1475287A true GB1475287A (en) 1977-06-01

Family

ID=10435566

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4502073A Expired GB1475287A (en) 1974-12-04 1974-12-04 Recording arrangements

Country Status (1)

Country Link
GB (1) GB1475287A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322829A (en) * 1980-09-11 1982-03-30 Dynamic Systems, Inc. Fiber optic accelerometer and method of measuring inertial force

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322829A (en) * 1980-09-11 1982-03-30 Dynamic Systems, Inc. Fiber optic accelerometer and method of measuring inertial force

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Legal Events

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