FIELD: measurement technology.
SUBSTANCE: device has coherent optical radiation source, beam splitting means, two light-guides one of which has to be air light-guide and the other one is made of material with light refractivity being higher than refractivity of light. Device has two motionless reflecting mirrors, one of which is mounted to keep light-guides in parallel, semitransparent mirror. Light beams from both light-guides fall onto the mirror to form interference pattern. Device also has optical radiation receiving and processing unit and diaphragms. Beam splitting aid, semitransparent mirror and motionless reflecting mirrors are all provided with diaphragms. Laser interferometer is developed which allows measuring distance to object under control or its size as well as linear speed of motion of transportation vehicle when being installed onto it.
EFFECT: improved precision of measurement.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2095752C1 |
| 0 |
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SU1670425A1 | |
| 0 |
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SU1777053A1 | |
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| METHOD OF INTERFERENCE MICROSCOPY | 2013 |
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RU2094755C1 |
