GB904342A - Improvements in or relating to extensometers - Google Patents
Improvements in or relating to extensometersInfo
- 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
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)).
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) |
-
1959
- 1959-04-17 GB GB13263/59A patent/GB904342A/en not_active Expired
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