GB1410152A - Linear measuring device - Google Patents

Linear measuring device

Info

Publication number
GB1410152A
GB1410152A GB1481973A GB1481973A GB1410152A GB 1410152 A GB1410152 A GB 1410152A GB 1481973 A GB1481973 A GB 1481973A GB 1481973 A GB1481973 A GB 1481973A GB 1410152 A GB1410152 A GB 1410152A
Authority
GB
United Kingdom
Prior art keywords
transducer
waves
detecting
strip
interdigital
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
GB1481973A
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.)
Plessey Co Ltd
Original Assignee
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB1481973A priority Critical patent/GB1410152A/en
Publication of GB1410152A publication Critical patent/GB1410152A/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
    • G01D5/48—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 using wave or particle radiation means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

1410152 Acoustic measurement of displacement PLESSEY CO Ltd 22 Jan 1974 [28 March 1973] 14819/73 Heading H4D A device for detecting and measuring length changes includes a strip member 1 of piezoelectric material, an interdigital transducer 2 secured to its surface 1a for generating surface acoustic waves, and a second interdigital transducer in slideable contact with the surface for detecting the waves, relative lengthwise movement between the strip and second transducer resulting in a phase change of the detected waves The second transducer is supported by a piezoelectric plate 4 in a metal housing 5, 7. The member 1 is spring-urged against the second transducer and against screws 8 for adjusting the transducer alignment. Transducer 2 is energized by an oscillator with a selectable frequency stabilized, e.g. by means of a second pair of surface wave transducers on member 1. Member 1 may be of quartz, or comprise a piezo-electric material on a steel substrate. The device is calibrated by use of a micrometer or slip gauge and is useful for creep or strain measurements, machine tool control, and indirect measurement of temperature.
GB1481973A 1973-03-28 1973-03-28 Linear measuring device Expired GB1410152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1481973A GB1410152A (en) 1973-03-28 1973-03-28 Linear measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1481973A GB1410152A (en) 1973-03-28 1973-03-28 Linear measuring device

Publications (1)

Publication Number Publication Date
GB1410152A true GB1410152A (en) 1975-10-15

Family

ID=10048049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1481973A Expired GB1410152A (en) 1973-03-28 1973-03-28 Linear measuring device

Country Status (1)

Country Link
GB (1) GB1410152A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007638A1 (en) * 1989-11-17 1991-05-30 Kaunassky Politekhnichesky Institut Device for measuring linear movements of an object
WO1994016294A1 (en) * 1993-01-13 1994-07-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Nanometer metrology
US5385050A (en) * 1992-04-07 1995-01-31 Northrop Grumman Corporation Gap measurement for shim manufacture
RU2458319C1 (en) * 2010-12-21 2012-08-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "ЮЖНЫЙ ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ" Displacement sensor on surface acoustic waves

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007638A1 (en) * 1989-11-17 1991-05-30 Kaunassky Politekhnichesky Institut Device for measuring linear movements of an object
US5385050A (en) * 1992-04-07 1995-01-31 Northrop Grumman Corporation Gap measurement for shim manufacture
WO1994016294A1 (en) * 1993-01-13 1994-07-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Nanometer metrology
GB2280030A (en) * 1993-01-13 1995-01-18 Secr Defence Nanometer metrology
GB2280030B (en) * 1993-01-13 1996-08-28 Secr Defence Nanometer metrology
RU2458319C1 (en) * 2010-12-21 2012-08-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "ЮЖНЫЙ ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ" Displacement sensor on surface acoustic waves

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed