GB8905826D0 - Measurement using interferometry - Google Patents

Measurement using interferometry

Info

Publication number
GB8905826D0
GB8905826D0 GB8905826A GB8905826A GB8905826D0 GB 8905826 D0 GB8905826 D0 GB 8905826D0 GB 8905826 A GB8905826 A GB 8905826A GB 8905826 A GB8905826 A GB 8905826A GB 8905826 D0 GB8905826 D0 GB 8905826D0
Authority
GB
United Kingdom
Prior art keywords
interferometry
measurement
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.)
Pending
Application number
GB8905826A
Other versions
GB2219393A (en
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.)
NDE INSTR Ltd
Original Assignee
NDE INSTR 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 NDE INSTR Ltd filed Critical NDE INSTR Ltd
Publication of GB8905826D0 publication Critical patent/GB8905826D0/en
Publication of GB2219393A publication Critical patent/GB2219393A/en
Pending 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
    • G01D5/26—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
    • G01D5/266—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 by interferometric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
    • 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
    • G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
    • G01L9/0076—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means
    • G01L9/0077—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light
    • G01L9/0079—Transmitting or indicating the displacement of flexible diaphragms using photoelectric means for measuring reflected light with Fabry-Perot arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB8905826A 1988-03-15 1989-03-14 Measuring a variable using interferometry Pending GB2219393A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8806061A GB8806061D0 (en) 1988-03-15 1988-03-15 Measurement of process variables

Publications (2)

Publication Number Publication Date
GB8905826D0 true GB8905826D0 (en) 1989-04-26
GB2219393A GB2219393A (en) 1989-12-06

Family

ID=10633417

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8806061A Pending GB8806061D0 (en) 1988-03-15 1988-03-15 Measurement of process variables
GB8905826A Pending GB2219393A (en) 1988-03-15 1989-03-14 Measuring a variable using interferometry

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8806061A Pending GB8806061D0 (en) 1988-03-15 1988-03-15 Measurement of process variables

Country Status (1)

Country Link
GB (2) GB8806061D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2677752A1 (en) * 1991-06-11 1992-12-18 Sextant Avionique Interferometric sensor for large displacements
US20160054195A1 (en) * 2014-08-20 2016-02-25 Johnson & Johnson Vision Care, Inc. System and methods for measuring ophthalmic lens

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1363968A (en) * 1972-03-07 1974-08-21 Instit Avtomatiki I Elektromet Displacement detector and an optical subassembly therefor
US3790284A (en) * 1972-05-08 1974-02-05 Hewlett Packard Co Interferometer system for measuring straightness and roll
GB2069169A (en) * 1980-02-06 1981-08-19 Breyer K H Measuring apparatus and method for determining the three- dimensional position of a body

Also Published As

Publication number Publication date
GB8806061D0 (en) 1988-04-13
GB2219393A (en) 1989-12-06

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