GB1182996A - Accelerometer. - Google Patents

Accelerometer.

Info

Publication number
GB1182996A
GB1182996A GB982268A GB982268A GB1182996A GB 1182996 A GB1182996 A GB 1182996A GB 982268 A GB982268 A GB 982268A GB 982268 A GB982268 A GB 982268A GB 1182996 A GB1182996 A GB 1182996A
Authority
GB
United Kingdom
Prior art keywords
spring
springs
mass
detecting element
coupling member
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
GB982268A
Inventor
John Christopher Greenwood
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB982268A priority Critical patent/GB1182996A/en
Publication of GB1182996A publication Critical patent/GB1182996A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/12—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance
    • G01P15/123—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance by piezo-resistive elements, e.g. semiconductor strain gauges
    • 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
    • G01P1/006—Details of instruments used for thermal compensation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1,182,996. Accelerometers. STANDARD TELEPHONES & CABLES. Feb. 29, 1968, No.9822/68. Heading G1K. An accelerometer including an element for detecting movement of a seismic mass 1 has the mass 1 supported by a spring 4 and coupled to the detecting element by an intermediate spring 5, the stiffness of the spring 5 being such that for normal acceleration of the mass 1 the coupling is effectively rigid but for abnormal acceleration the spring 5 can flex. The springs 4, 5 may be of disc form. Two intermediate springs (11, 12, Fig. 4, not shown) may be provided which, in the normal position, press equally in opposite directions on the detecting element. The spring 5 or springs (11, 12) are attached to the mass 1 and to an intermediate linking member 3 which is normally kept in contact with both the mass 1 and with a coupling member 2 (10) by the spring 5 or springs (11, 12). The supporting and intermediate springs may be cantilever leaf springs 16, 21, Fig. 6, a coupling member 20 attached to the detecting element projecting through a hole 19 in the support spring 16 and the intermediate spring 21 pressing against the coupling member 20 and the spring 16 adjacent the hole 19. The support spring may be bi-metallic with temperature co-efficient arranged to compensate for temperature variation in the detecting element, which element may be a piezo-resistive element.
GB982268A 1968-02-29 1968-02-29 Accelerometer. Expired GB1182996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB982268A GB1182996A (en) 1968-02-29 1968-02-29 Accelerometer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB982268A GB1182996A (en) 1968-02-29 1968-02-29 Accelerometer.

Publications (1)

Publication Number Publication Date
GB1182996A true GB1182996A (en) 1970-03-04

Family

ID=9879447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB982268A Expired GB1182996A (en) 1968-02-29 1968-02-29 Accelerometer.

Country Status (1)

Country Link
GB (1) GB1182996A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094155A1 (en) * 1982-04-26 1983-11-16 Tecalemit Electronics Limited A vibration sensing probe
GB2130373A (en) * 1982-11-17 1984-05-31 Stc Plc Accelerometer device
GB2176607A (en) * 1985-06-18 1986-12-31 Standard Telephones Cables Ltd Accelerometer device
EP0247247A1 (en) * 1986-05-23 1987-12-02 British Aerospace Public Limited Company Accelerometers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094155A1 (en) * 1982-04-26 1983-11-16 Tecalemit Electronics Limited A vibration sensing probe
GB2130373A (en) * 1982-11-17 1984-05-31 Stc Plc Accelerometer device
GB2176607A (en) * 1985-06-18 1986-12-31 Standard Telephones Cables Ltd Accelerometer device
EP0247247A1 (en) * 1986-05-23 1987-12-02 British Aerospace Public Limited Company Accelerometers

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees