GB673971A - - Google Patents
Info
- Publication number
- GB673971A GB673971A GB673971DA GB673971A GB 673971 A GB673971 A GB 673971A GB 673971D A GB673971D A GB 673971DA GB 673971 A GB673971 A GB 673971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- thread
- reflected
- auxiliary
- plane
- 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.)
- Expired
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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2425—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures of screw-threads
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Abstract
673,971. Interferometers. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 26, 1950 [May 26, 1949], No. 14142/49. Class 97 (i). [Also in Group XIX] A method of testing the accuracy of a surface of a screw thread 6, Fig. 1, comprises setting up the screw 6 in a Michelson type interferometer in place of one of the usual plane surfaces with the axis of the screw parallel to the optical axis and viewing the surface of the thread by reflection from an auxiliary surface 5 which is generally screw shaped in form and so shaped and arranged that a plane image of the screw thread is produced for comparison with the other plane surface 4 of the interferometer. Light from a source 1 passes through a collimating lens 2 and is divided by a half silvered surface 3 into two parts, one being reflected on to the surface 4 and back through the surface 3 and the other passing through the surface 3 to be reflected by the auxiliary surface 5 so as to fall normally on the thread 6 and return by the same path to be reflected by the surface 3. The two parts of the beam are now re-united and brought to a focus at 7 where light fringes will reveal any irregularities of the screw surface. The auxiliary surface may be formed as a number of turns 8 set back conically, Fig. 3. Formulµ defining the screw shapes are given.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673971A true GB673971A (en) | 1900-01-01 |
Family
ID=1750375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB673971D Expired GB673971A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB673971A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1544605A2 (en) * | 2003-12-19 | 2005-06-22 | Kamax-Werke Rudolf Kellermann GmbH & Co. KG | Method and device for checking a thread of a connecting element for damages |
| WO2005061989A1 (en) * | 2003-12-23 | 2005-07-07 | Robert Bosch Gmbh | Optical imaging system |
| WO2006032553A1 (en) * | 2004-09-22 | 2006-03-30 | Robert Bosch Gmbh | Interferometric system with reference surfaces with a mirrored zone |
| GB2457976A (en) * | 2008-02-28 | 2009-09-02 | Statoilhydro Asa | Laser interferometry for seismic exploration |
| US7933003B2 (en) | 2004-08-04 | 2011-04-26 | Statoil Asa | Method and apparatus for studying surface vibrations by moving speckle interferometer |
| US8498176B2 (en) | 2005-08-15 | 2013-07-30 | Statoil Asa | Seismic exploration |
-
0
- GB GB673971D patent/GB673971A/en not_active Expired
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1544605A3 (en) * | 2003-12-19 | 2006-01-18 | Kamax-Werke Rudolf Kellermann GmbH & Co. KG | Method and device for checking a thread of a connecting element for damages |
| EP1544605A2 (en) * | 2003-12-19 | 2005-06-22 | Kamax-Werke Rudolf Kellermann GmbH & Co. KG | Method and device for checking a thread of a connecting element for damages |
| US7594607B2 (en) | 2003-12-23 | 2009-09-29 | Robert Bosch Gmbh | Optical imaging system |
| WO2005061989A1 (en) * | 2003-12-23 | 2005-07-07 | Robert Bosch Gmbh | Optical imaging system |
| US7933003B2 (en) | 2004-08-04 | 2011-04-26 | Statoil Asa | Method and apparatus for studying surface vibrations by moving speckle interferometer |
| WO2006032553A1 (en) * | 2004-09-22 | 2006-03-30 | Robert Bosch Gmbh | Interferometric system with reference surfaces with a mirrored zone |
| JP2008513797A (en) * | 2004-09-22 | 2008-05-01 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Interference system with a reference surface having a specular area |
| US8035821B2 (en) | 2004-09-22 | 2011-10-11 | Robert Bosch Gmbh | Interferometric system having a reference surface including a mirrored zone |
| US8498176B2 (en) | 2005-08-15 | 2013-07-30 | Statoil Asa | Seismic exploration |
| GB2457976A (en) * | 2008-02-28 | 2009-09-02 | Statoilhydro Asa | Laser interferometry for seismic exploration |
| GB2457976B (en) * | 2008-02-28 | 2012-01-25 | Statoilhydro Asa | Improved interferometric methods and apparatus for seismic exploration |
| AU2009219993B2 (en) * | 2008-02-28 | 2013-08-29 | Statoil Petroleum As | Improved interferometric methods and apparatus for seismic exploration |
| US8797549B2 (en) | 2008-02-28 | 2014-08-05 | Statoil Petroleum As | Interferometric methods and apparatus for seismic exploration |
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