JPS5728201A - Measuring mehtod for radius of curvature of concave spherical surface - Google Patents
Measuring mehtod for radius of curvature of concave spherical surfaceInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0244021U (en) * | 1988-09-20 | 1990-03-27 |
-
1980
- 1980-07-25 JP JP10277480A patent/JPS5728201A/en active Granted
Cited By (3)
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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