SU993011A1 - Interferometer for measuring large displacements - Google Patents
Interferometer for measuring large displacements Download PDFInfo
- Publication number
- SU993011A1 SU993011A1 SU813305990A SU3305990A SU993011A1 SU 993011 A1 SU993011 A1 SU 993011A1 SU 813305990 A SU813305990 A SU 813305990A SU 3305990 A SU3305990 A SU 3305990A SU 993011 A1 SU993011 A1 SU 993011A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- reflector
- chamber
- vacuum
- interferometer
- metal plate
- Prior art date
Links
Landscapes
- Instruments For Measurement Of Length By Optical Means (AREA)
Description
Изобретение относитс к измерительной технике и может быть использовано , в частности, дл интерференционных измерений больших перемещений в геодезии, метрологии, машиностроении и др.The invention relates to a measurement technique and can be used, in particular, for interference measurements of large displacements in geodesy, metrology, mechanical engineering, etc.
Известны интерферометры типа Майкельсона дл измерени больших (до нескольких дес тков метров перемещений , в которых измерение осуществл етс путем счета интерференционных полос при движении концевого отч ражател вдоль всей измер емой дистанции 1.Michelson-type interferometers are known for measuring large (up to several tens of meters of displacements, in which the measurement is made by counting interference fringes as the end section of the detector travels along the entire measured distance 1.
Однако в этих интерферометрах дл получени искомой длины, редуцированной к вакууму, требуетс дополнительно измер ть показатель преломлени воздуха, дл чего необходимо выполн ть измерени температуры, давлени и влажности с последующим вычис ; лением показател преломлени , или же использовать дополнительный интерферометр , специально предназначенный дл определени показател : преломлени воздуха.However, in these interferometers, to obtain the desired length, reduced to vacuum, it is necessary to additionally measure the refractive index of air, for which it is necessary to measure temperature, pressure and humidity, followed by a calculation; refractive index, or use an additional interferometer specifically designed to determine the refractive index of air.
Наиболее близким к предлагаемому по технической сущности вл етс интерферометр дл измерени больших перемещений, содержащий источникClosest to the proposed technical entity is an interferometer for measuring large displacements, containing the source
света, светоделитель, дел щий световой поток на два пучка, неподвижный отражатель, расположенный в одном пучке, подвижный отражатель, расположенный в другом пучке с возможностью перемещени влоль оси этого пучка, и регистрирующий блок со счетчиком интерференционных полос Г 2 J.light, a beam splitter, dividing the luminous flux into two beams, a fixed reflector located in one beam, a movable reflector located in another beam with the possibility of moving the axis of this beam, and a recording unit with an interference band counter G 2 J.
Недостатком такого интерферометра вл етс низка производительность измерени из-за необходимости использовани дополнительных измерительных средств дл определени показател преломлени воздуха, например, датчиков температуры и давлени воздуха , по показани м которых вычисл ют показатель преломлени и ввод т соответствуквдую поправку в измеренное рассто ние.The disadvantage of such an interferometer is the low measurement performance due to the need to use additional measuring means to determine the refractive index of air, for example, temperature and air pressure sensors, from whose indications the refractive index is calculated and the corresponding correction is introduced to the measured distance.
2020
Кроме того, интерферометр характеризуетс недостаточно высокой точностью измерени ввидутого, что показатель преломлени определ етс In addition, the interferometer is characterized by an insufficiently high accuracy of measurement, apparently, that the refractive index is determined by
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813305990A SU993011A1 (en) | 1981-06-24 | 1981-06-24 | Interferometer for measuring large displacements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813305990A SU993011A1 (en) | 1981-06-24 | 1981-06-24 | Interferometer for measuring large displacements |
Publications (1)
Publication Number | Publication Date |
---|---|
SU993011A1 true SU993011A1 (en) | 1983-01-30 |
Family
ID=20964866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU813305990A SU993011A1 (en) | 1981-06-24 | 1981-06-24 | Interferometer for measuring large displacements |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU993011A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4989980A (en) * | 1989-03-02 | 1991-02-05 | Honeywell Inc. | Method and apparatus for measuring coefficient of thermal expansion |
US5103572A (en) * | 1989-06-24 | 1992-04-14 | Wild Leitz Messtechnik Gmbh | Feeler pin using an optical contact sensor |
US5121987A (en) * | 1989-03-02 | 1992-06-16 | Honeywell Inc. | Method and apparatus for measuring coefficient of thermal expansion |
CN109253698A (en) * | 2018-09-21 | 2019-01-22 | 湖北工业大学 | A kind of displacement sensor |
-
1981
- 1981-06-24 SU SU813305990A patent/SU993011A1/en active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4989980A (en) * | 1989-03-02 | 1991-02-05 | Honeywell Inc. | Method and apparatus for measuring coefficient of thermal expansion |
US5121987A (en) * | 1989-03-02 | 1992-06-16 | Honeywell Inc. | Method and apparatus for measuring coefficient of thermal expansion |
US5103572A (en) * | 1989-06-24 | 1992-04-14 | Wild Leitz Messtechnik Gmbh | Feeler pin using an optical contact sensor |
CN109253698A (en) * | 2018-09-21 | 2019-01-22 | 湖北工业大学 | A kind of displacement sensor |
CN109253698B (en) * | 2018-09-21 | 2021-07-13 | 湖北工业大学 | Displacement sensor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2256804A (en) | Pressure measuring means | |
SU993011A1 (en) | Interferometer for measuring large displacements | |
US3619070A (en) | Method and apparatus for measuring thickness | |
Fujii et al. | Volume determination of fused quartz spheres | |
US2285515A (en) | Light dividing apparatus | |
US2286621A (en) | Pressure measuring apparatus | |
US2289551A (en) | Apparatus for measuring relative movements or deflections of associated or interconnected parts | |
US3198946A (en) | Apparatus for sensing position of a radiation reflector | |
GB2060931A (en) | Method and apparatus for determining the velocity of light under varied environmental conditions in combination with an interferometer | |
SU441611A1 (en) | Device for measuring the non-linearity of the beam deflection in the cathode-ray tubes | |
US2817238A (en) | Micromanometer | |
SU450077A1 (en) | Device for controlling the shape of a parabolic surface | |
SU1679301A1 (en) | Instrument to measure transparent media index of refraction | |
SU759845A1 (en) | Interferometer for measuring outer dimensions of member | |
JPH04102048A (en) | Laser type method and apparatus for measuring air transmission in tunnel | |
SU1073564A1 (en) | Epitaxial layer thickness measuring device | |
RU1554573C (en) | Interference method of measurement of absolute index of refraction | |
JPS6124881Y2 (en) | ||
SU113992A1 (en) | Parallel Line Comparator | |
SU1037066A1 (en) | Method of measuring angle of article | |
SU932341A1 (en) | Method of determination of focal length and rear focus position of an optical system | |
SU1165882A1 (en) | Device for checking rectilinearity | |
SU526769A1 (en) | Device for measuring the movement of a light beam along one coordinate on an object | |
US2410942A (en) | Optical thickness gauge | |
US3374704A (en) | Linear calibrating interferometer |