JPS5728201A - Measuring mehtod for radius of curvature of concave spherical surface - Google Patents

Measuring mehtod for radius of curvature of concave spherical surface

Info

Publication number
JPS5728201A
JPS5728201A JP10277480A JP10277480A JPS5728201A JP S5728201 A JPS5728201 A JP S5728201A JP 10277480 A JP10277480 A JP 10277480A JP 10277480 A JP10277480 A JP 10277480A JP S5728201 A JPS5728201 A JP S5728201A
Authority
JP
Japan
Prior art keywords
spherical surface
concave spherical
nominal
diameter
measuring
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.)
Granted
Application number
JP10277480A
Other languages
Japanese (ja)
Other versions
JPS6317161B2 (en
Inventor
Shizuka Yamazaki
Kiyoshi Nakanishi
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.)
NTN Corp
Original Assignee
NTN Toyo Bearing 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 NTN Toyo Bearing Co Ltd filed Critical NTN Toyo Bearing Co Ltd
Priority to JP10277480A priority Critical patent/JPS5728201A/en
Publication of JPS5728201A publication Critical patent/JPS5728201A/en
Publication of JPS6317161B2 publication Critical patent/JPS6317161B2/ja
Granted 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
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • G01B5/213—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring radius of curvature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To enable measurement of the titled device with ease by using a plurality of measuring jigs which have cylindrical shape of high accuracy the parrs thereof are cut and polished with size allowances several um's apart respectively and the mutual diameter differences at the cylindrical parts are limited within several tens of mum. CONSTITUTION:Plurality of high accurate spherical bodies with variation tolerances of several mum, apart with each other, for instance, spherical bodies with a diameters of nominal variation allowance, + or -0mum, 5mum and 10mum for the nominal diameter of the concave spherical surface to be measured of 10cm. One part of the spherical body is cut to obtain a cylindrical one, and a measuring tool 10 obrained by making the diameter of said cylindrical part 10a a mutual differnce within several tens of mum is prepared. A spherical body part 10b of the measuring tool 10 is then inserted such that said part contacts with the concave spherical surface 11a to be measured, and the highest position y of the measuring jig 10 is read with a dial gauge 12. By replacing successively a measuring tool 10 with a nominal variation allowance + or -10mum to a jig 10 having a larger nominal variation allowance to measure y, and by plotting a nominal dimension difference x on the axis of abscissa and y on the axis of ordinate, the diameter of the concave spherical surface can be evaluated from an inflecting point of a straight line. Hereby, even for the concave spherical surface a part of which is deformed or deep in the interior of a narrow cylinder, easy and accurate measurements are possible.
JP10277480A 1980-07-25 1980-07-25 Measuring mehtod for radius of curvature of concave spherical surface Granted JPS5728201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10277480A JPS5728201A (en) 1980-07-25 1980-07-25 Measuring mehtod for radius of curvature of concave spherical surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10277480A JPS5728201A (en) 1980-07-25 1980-07-25 Measuring mehtod for radius of curvature of concave spherical surface

Publications (2)

Publication Number Publication Date
JPS5728201A true JPS5728201A (en) 1982-02-15
JPS6317161B2 JPS6317161B2 (en) 1988-04-12

Family

ID=14336497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10277480A Granted JPS5728201A (en) 1980-07-25 1980-07-25 Measuring mehtod for radius of curvature of concave spherical surface

Country Status (1)

Country Link
JP (1) JPS5728201A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609302U (en) * 1983-06-30 1985-01-22 株式会社東芝 microwave integrated circuit
US7987610B2 (en) * 2007-03-27 2011-08-02 Showa Denko K.K. Method of examining aperture diameter of disk substrate having circular aperture in central portion thereof and apparatus thereof
CN102818498A (en) * 2012-09-14 2012-12-12 中煤科工集团重庆研究院 Wall rock mobile sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0244021U (en) * 1988-09-20 1990-03-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609302U (en) * 1983-06-30 1985-01-22 株式会社東芝 microwave integrated circuit
US7987610B2 (en) * 2007-03-27 2011-08-02 Showa Denko K.K. Method of examining aperture diameter of disk substrate having circular aperture in central portion thereof and apparatus thereof
CN102818498A (en) * 2012-09-14 2012-12-12 中煤科工集团重庆研究院 Wall rock mobile sensor

Also Published As

Publication number Publication date
JPS6317161B2 (en) 1988-04-12

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