GB2209603B - Precision angle and wavelength measurement apparatus using an acousto-optic cell - Google Patents

Precision angle and wavelength measurement apparatus using an acousto-optic cell

Info

Publication number
GB2209603B
GB2209603B GB8821701A GB8821701A GB2209603B GB 2209603 B GB2209603 B GB 2209603B GB 8821701 A GB8821701 A GB 8821701A GB 8821701 A GB8821701 A GB 8821701A GB 2209603 B GB2209603 B GB 2209603B
Authority
GB
United Kingdom
Prior art keywords
acousto
measurement apparatus
wavelength measurement
optic cell
precision angle
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 - Lifetime
Application number
GB8821701A
Other versions
GB2209603A (en
GB8821701D0 (en
Inventor
Martin Lawrence
Clive Speake
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8821701D0 publication Critical patent/GB8821701D0/en
Publication of GB2209603A publication Critical patent/GB2209603A/en
Application granted granted Critical
Publication of GB2209603B publication Critical patent/GB2209603B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01D5/28—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 with deflection of beams of light, e.g. for direct optical indication
    • G01D5/30—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 with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Electronic Circuits (AREA)
GB8821701A 1987-09-08 1988-09-05 Precision angle and wavelength measurement apparatus using an acousto-optic cell Expired - Lifetime GB2209603B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878721029A GB8721029D0 (en) 1987-09-08 1987-09-08 Precision angle measurement

Publications (3)

Publication Number Publication Date
GB8821701D0 GB8821701D0 (en) 1988-10-19
GB2209603A GB2209603A (en) 1989-05-17
GB2209603B true GB2209603B (en) 1992-05-06

Family

ID=10623403

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878721029A Pending GB8721029D0 (en) 1987-09-08 1987-09-08 Precision angle measurement
GB8821701A Expired - Lifetime GB2209603B (en) 1987-09-08 1988-09-05 Precision angle and wavelength measurement apparatus using an acousto-optic cell

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878721029A Pending GB8721029D0 (en) 1987-09-08 1987-09-08 Precision angle measurement

Country Status (1)

Country Link
GB (2) GB8721029D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5583643A (en) * 1991-04-12 1996-12-10 British Technology Group Ltd. Methods of and apparatus for measurement using acousto-optic devices
GB9107796D0 (en) * 1991-04-12 1991-05-29 Nat Res Dev Methods of and apparatus for measurement using acousto-optic devices

Also Published As

Publication number Publication date
GB8721029D0 (en) 1987-10-14
GB2209603A (en) 1989-05-17
GB8821701D0 (en) 1988-10-19

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Legal Events

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

Effective date: 20030905