JPS56147004A - Deciding method for displacement mode by holography interference - Google Patents

Deciding method for displacement mode by holography interference

Info

Publication number
JPS56147004A
JPS56147004A JP5039480A JP5039480A JPS56147004A JP S56147004 A JPS56147004 A JP S56147004A JP 5039480 A JP5039480 A JP 5039480A JP 5039480 A JP5039480 A JP 5039480A JP S56147004 A JPS56147004 A JP S56147004A
Authority
JP
Japan
Prior art keywords
generated
laser pulses
laser
dry plate
pulses
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
JP5039480A
Other languages
Japanese (ja)
Inventor
Hiroshi Oota
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5039480A priority Critical patent/JPS56147004A/en
Publication of JPS56147004A publication Critical patent/JPS56147004A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/021—Interferometers using holographic techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)

Abstract

PURPOSE:To accurately detect phase states by a pulse laser holography interference method by generating the secondary laser pulses delayed by each micro-time with respect to the primary laser pulses which are generated at all times at a fixed response signal level. CONSTITUTION:The light from a pulse laser 1 via a control circuit 8 for laser pulse emission timing is split to two luminous fluxes by a half mirror 3. The one of them as reference light enters a hologram dry plate 5 through a slit 7, and the other is reflected by an object to be measured 4 and enters the dry plate 5 through the slit 7. These primary laser pulses are generated at all times at a fixed response level value with the dynamic signal such as acceleration response signal of the object 4 as a control signal of light emission timing. The secondary laser pulses are generated with a delay of each microtime with respect to the secondary pulses. These double exposed holograms are recorded by moving the dry plate 5, and the phase states of dynamic displacing modes are accurately stated from the movement of interference fringes by the reconstruction thereof.
JP5039480A 1980-04-18 1980-04-18 Deciding method for displacement mode by holography interference Pending JPS56147004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5039480A JPS56147004A (en) 1980-04-18 1980-04-18 Deciding method for displacement mode by holography interference

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5039480A JPS56147004A (en) 1980-04-18 1980-04-18 Deciding method for displacement mode by holography interference

Publications (1)

Publication Number Publication Date
JPS56147004A true JPS56147004A (en) 1981-11-14

Family

ID=12857649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5039480A Pending JPS56147004A (en) 1980-04-18 1980-04-18 Deciding method for displacement mode by holography interference

Country Status (1)

Country Link
JP (1) JPS56147004A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104567659A (en) * 2014-12-22 2015-04-29 南京师范大学 Vortex light lighting-based dark field digital holographic microscopy device and method
CN104567660A (en) * 2014-12-22 2015-04-29 南京师范大学 Dark field digital holographic microscopy device based on vortex round airy light illumination and method using device
CN108680944A (en) * 2018-03-19 2018-10-19 华中科技大学 A method of detection electron motion

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104567659A (en) * 2014-12-22 2015-04-29 南京师范大学 Vortex light lighting-based dark field digital holographic microscopy device and method
CN104567660A (en) * 2014-12-22 2015-04-29 南京师范大学 Dark field digital holographic microscopy device based on vortex round airy light illumination and method using device
CN108680944A (en) * 2018-03-19 2018-10-19 华中科技大学 A method of detection electron motion
CN108680944B (en) * 2018-03-19 2020-07-14 华中科技大学 Method for detecting electron motion

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