GB904342A - Improvements in or relating to extensometers - Google Patents

Improvements in or relating to extensometers

Info

Publication number
GB904342A
GB904342A GB13263/59A GB1326359A GB904342A GB 904342 A GB904342 A GB 904342A GB 13263/59 A GB13263/59 A GB 13263/59A GB 1326359 A GB1326359 A GB 1326359A GB 904342 A GB904342 A GB 904342A
Authority
GB
United Kingdom
Prior art keywords
line
frequency
extension
oscillator
changes
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
GB13263/59A
Inventor
William Henry Irvine
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB13263/59A priority Critical patent/GB904342A/en
Publication of GB904342A publication Critical patent/GB904342A/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
    • G01D5/12—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 electric or magnetic means
    • G01D5/14—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 electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/18—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 electric or magnetic means influencing the magnitude of a current or voltage by varying effective impedance of discharge tubes or semiconductor devices
    • G01D5/183—Sensing rotation or linear movement using strain, force or pressure sensors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

904,342. Measuring electrically. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 31, 1960 [April 17, 1959], No. 13263/59. Class 40 (1). [Also in Group XL (c)] In an extensometer the two components 5 and 3, Fig. 1, of a coaxial line are attached by lugs 4 and 2 to the points between which it is required to measure the strain or extension. Relative movement of the coaxial line components changes the resonant frequency of the line which changes can be detected either by feeding a variable frequency signal into the line or loop 13 and finding the frequency at which the line absorbs the maximum power or alternatively making the line the frequency determining circuit of a squegging oscillator and receiving the output signal on a calibrated tunable receiver. In the latter case the oscillator may be built into an extension of the line casing as shown in Fig. 3 (see Group XL (c)).
GB13263/59A 1959-04-17 1959-04-17 Improvements in or relating to extensometers Expired GB904342A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13263/59A GB904342A (en) 1959-04-17 1959-04-17 Improvements in or relating to extensometers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13263/59A GB904342A (en) 1959-04-17 1959-04-17 Improvements in or relating to extensometers

Publications (1)

Publication Number Publication Date
GB904342A true GB904342A (en) 1962-08-29

Family

ID=10019795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13263/59A Expired GB904342A (en) 1959-04-17 1959-04-17 Improvements in or relating to extensometers

Country Status (1)

Country Link
GB (1) GB904342A (en)

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