JPS57148207A - Device for measuring straightness - Google Patents

Device for measuring straightness

Info

Publication number
JPS57148207A
JPS57148207A JP3440481A JP3440481A JPS57148207A JP S57148207 A JPS57148207 A JP S57148207A JP 3440481 A JP3440481 A JP 3440481A JP 3440481 A JP3440481 A JP 3440481A JP S57148207 A JPS57148207 A JP S57148207A
Authority
JP
Japan
Prior art keywords
slider
measured
mirror
screen
straightness
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
JP3440481A
Other languages
Japanese (ja)
Inventor
Shunsui Kawasaki
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP3440481A priority Critical patent/JPS57148207A/en
Publication of JPS57148207A publication Critical patent/JPS57148207A/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
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To measure the straightness of holes, grooves, and the like by a simple constitution highly accurately, based on an interference measuring method utilizing laser light, by detecting the change in inclination of a reflecting mirror provided in a slider that is intimately contacted with the inner wall of a circular pipe and moved, based on the amount of the shift from the center of an interference ring on a projection screen. CONSTITUTION:The laser light 3 emitted from an He-Ne laser 7 is focussed on a central pinhole of the screen 5 by a condenser lens 4. Then the light is inputted to a semitransparent mirror 1 fixed to one end of a material to be measured 10 and to the reflecting mirror 2, which is fixed to the slider 11 that can be smoothly moved along the internal diameter of the material to be measured 10, through reflecting mirrors 8 and 9. The reflected light beams from the semitransparent mirror 1 and the reflected mirror 2 go back to the screen 5 and generate the interference ring. From the amount of shifting of the interference ring caused by the movement of the slider 11, the straightness of the hole (or groove and the like) is measured by the simple constitution highly accurately.
JP3440481A 1981-03-10 1981-03-10 Device for measuring straightness Pending JPS57148207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3440481A JPS57148207A (en) 1981-03-10 1981-03-10 Device for measuring straightness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3440481A JPS57148207A (en) 1981-03-10 1981-03-10 Device for measuring straightness

Publications (1)

Publication Number Publication Date
JPS57148207A true JPS57148207A (en) 1982-09-13

Family

ID=12413243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3440481A Pending JPS57148207A (en) 1981-03-10 1981-03-10 Device for measuring straightness

Country Status (1)

Country Link
JP (1) JPS57148207A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105203068A (en) * 2015-10-12 2015-12-30 中北大学 Deep hole straightness detection method based on ultrasonic thickness meter
CN106595532A (en) * 2016-11-02 2017-04-26 中北大学 Method for detecting linearity of deep hole
CN108645325A (en) * 2018-05-12 2018-10-12 芜湖凯德机械制造有限公司 A kind of pipeline straightness check tool
CN109000592A (en) * 2018-08-30 2018-12-14 大连理工大学 A kind of deep and long hole linearity testing apparatus and method
CN113670231A (en) * 2021-07-28 2021-11-19 国家石油天然气管网集团有限公司华南分公司 Waveguide silk straightness accuracy measuring device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105203068A (en) * 2015-10-12 2015-12-30 中北大学 Deep hole straightness detection method based on ultrasonic thickness meter
CN105203068B (en) * 2015-10-12 2018-02-16 中北大学 Deep hole linear degree detection method based on sonigauge
CN106595532A (en) * 2016-11-02 2017-04-26 中北大学 Method for detecting linearity of deep hole
CN108645325A (en) * 2018-05-12 2018-10-12 芜湖凯德机械制造有限公司 A kind of pipeline straightness check tool
CN109000592A (en) * 2018-08-30 2018-12-14 大连理工大学 A kind of deep and long hole linearity testing apparatus and method
CN113670231A (en) * 2021-07-28 2021-11-19 国家石油天然气管网集团有限公司华南分公司 Waveguide silk straightness accuracy measuring device

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