JPS56117109A - Measuring method of face distortion - Google Patents

Measuring method of face distortion

Info

Publication number
JPS56117109A
JPS56117109A JP2200680A JP2200680A JPS56117109A JP S56117109 A JPS56117109 A JP S56117109A JP 2200680 A JP2200680 A JP 2200680A JP 2200680 A JP2200680 A JP 2200680A JP S56117109 A JPS56117109 A JP S56117109A
Authority
JP
Japan
Prior art keywords
sensor
face
flat
standard scale
lower face
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
JP2200680A
Other languages
Japanese (ja)
Inventor
Mitsumasa Sato
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP2200680A priority Critical patent/JPS56117109A/en
Publication of JPS56117109A publication Critical patent/JPS56117109A/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
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/306—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces for measuring evenness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To shorten the measuring time of the quantity of face distortion by making the flat face of a standard scale in which a sensor a noncontact type range finder is embedded securely in contact with the surface of an object to be measured to measure the gap between the sensor and the surface. CONSTITUTION:Sensor 2 for a noncontact type range finder is embedded securely in the center of standard scale 1 whose lower face 1a is flat so as to make the sensor consist with lower face 1a. When surface 6a (or 6b) is flat or convex, the indication value of measuring device 4 is constant even if standard scale 1 is shifted A to B (or C to D) along with the surface. When there is a recess part 7 on surface 6b, the gap between lower face 1a and surface 7a is detected by shifting sensor 2 from E to F, making it possible to shorten the measuring time of the quantity of face distortion.
JP2200680A 1980-02-21 1980-02-21 Measuring method of face distortion Pending JPS56117109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2200680A JPS56117109A (en) 1980-02-21 1980-02-21 Measuring method of face distortion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2200680A JPS56117109A (en) 1980-02-21 1980-02-21 Measuring method of face distortion

Publications (1)

Publication Number Publication Date
JPS56117109A true JPS56117109A (en) 1981-09-14

Family

ID=12070912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2200680A Pending JPS56117109A (en) 1980-02-21 1980-02-21 Measuring method of face distortion

Country Status (1)

Country Link
JP (1) JPS56117109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5687487A (en) * 1995-09-25 1997-11-18 Dogwood Restorations Flatness tester

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49114451A (en) * 1973-02-28 1974-10-31
JPS5239160B2 (en) * 1972-09-26 1977-10-03

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239160B2 (en) * 1972-09-26 1977-10-03
JPS49114451A (en) * 1973-02-28 1974-10-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5687487A (en) * 1995-09-25 1997-11-18 Dogwood Restorations Flatness tester

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