GB2208931B - Mechanical oscilattor - Google Patents

Mechanical oscilattor

Info

Publication number
GB2208931B
GB2208931B GB8719591A GB8719591A GB2208931B GB 2208931 B GB2208931 B GB 2208931B GB 8719591 A GB8719591 A GB 8719591A GB 8719591 A GB8719591 A GB 8719591A GB 2208931 B GB2208931 B GB 2208931B
Authority
GB
United Kingdom
Prior art keywords
oscilattor
mechanical
mechanical oscilattor
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 - Fee Related
Application number
GB8719591A
Other versions
GB8719591D0 (en
GB2208931A (en
Inventor
James Mark Naden
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
STC 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 STC PLC filed Critical STC PLC
Priority to GB8719591A priority Critical patent/GB2208931B/en
Publication of GB8719591D0 publication Critical patent/GB8719591D0/en
Publication of GB2208931A publication Critical patent/GB2208931A/en
Application granted granted Critical
Publication of GB2208931B publication Critical patent/GB2208931B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01L1/18—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
    • G01L1/183—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material by measuring variations of frequency of vibrating piezo-resistive material
    • G01L1/186—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material by measuring variations of frequency of vibrating piezo-resistive material optical excitation or measuring of vibrations
    • 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
    • G01D5/268—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 using optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
    • G01L9/0019—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a semiconductive element
    • G01L9/002—Optical excitation or measuring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Integrated Circuits (AREA)
GB8719591A 1987-08-19 1987-08-19 Mechanical oscilattor Expired - Fee Related GB2208931B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8719591A GB2208931B (en) 1987-08-19 1987-08-19 Mechanical oscilattor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8719591A GB2208931B (en) 1987-08-19 1987-08-19 Mechanical oscilattor

Publications (3)

Publication Number Publication Date
GB8719591D0 GB8719591D0 (en) 1987-09-23
GB2208931A GB2208931A (en) 1989-04-19
GB2208931B true GB2208931B (en) 1991-06-26

Family

ID=10622496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8719591A Expired - Fee Related GB2208931B (en) 1987-08-19 1987-08-19 Mechanical oscilattor

Country Status (1)

Country Link
GB (1) GB2208931B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972076A (en) * 1988-09-29 1990-11-20 Schlumberger Industries Limited Solid state sensor with dual resonant vibratable members
GB2235773B (en) * 1989-08-30 1993-12-22 Schlumberger Ind Ltd Sensors
EP0419021A3 (en) * 1989-08-30 1991-10-09 Schlumberger Industries Limited Sensors with vibrating elements
FR2729232A1 (en) * 1995-01-10 1996-07-12 Commissariat Energie Atomique OPTICAL DEVICE FOR OPTOMECHANICAL APPLICATION
FR2792410B1 (en) * 1999-04-14 2001-06-22 Schlumberger Services Petrol MANOMETER PRESSURE MEASUREMENT METHOD WITH RESONANT ELEMENT

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146120A (en) * 1983-09-03 1985-04-11 Gen Electric Co Plc Photoacoustic force sensor
GB2161931A (en) * 1984-07-17 1986-01-22 Stc Plc Remote sensor systems
GB2182433A (en) * 1985-11-02 1987-05-13 Stc Plc Remote sensor
GB2185106A (en) * 1985-12-13 1987-07-08 Gen Electric Co Plc An optically-driven vibrating sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146120A (en) * 1983-09-03 1985-04-11 Gen Electric Co Plc Photoacoustic force sensor
GB2161931A (en) * 1984-07-17 1986-01-22 Stc Plc Remote sensor systems
GB2182433A (en) * 1985-11-02 1987-05-13 Stc Plc Remote sensor
GB2185106A (en) * 1985-12-13 1987-07-08 Gen Electric Co Plc An optically-driven vibrating sensor

Also Published As

Publication number Publication date
GB8719591D0 (en) 1987-09-23
GB2208931A (en) 1989-04-19

Similar Documents

Publication Publication Date Title
GB2208931B (en) Mechanical oscilattor
AU98521S (en) Sea - or drag - anchor
CA57871S (en) Filterware
CA58156S (en) Cintre
CA59730S (en) Hydroscope
CA59451S (en) Television-receiver
CS110187A1 (en) Vyplnkovy plosny textilni utvar
CS117387A1 (en) Miniaturni indukcni snimac
AU103398S (en) Booksleeve
AU103833S (en) Photobag
AU105859S (en) Booksleeve
AU105860S (en) Booksleeve
AU106324S (en) Cheeseboard
AU96160S (en) Gamesboard
AU98902S (en) Pilchers
AU99873S (en) Sportsbag
BG44409A1 (en) Hydrocycline
BG44502A1 (en) Defectoscope
CS148487A1 (en) Svetelne ukazovatko
CS100787A1 (en) Kloubovy kartac
CS102487A1 (en) Zpusob vyroby roztoku dusicnanu mednateho
CS103387A1 (en) Usporadani rotacniho pohonu
CS106287A1 (en) Odlucovac kondenzatu
CS106387A1 (en) Odlucovat kondenzatu
CS141887A1 (en) Axialni rychlobezne segmentove lozisko

Legal Events

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