Title:
DEVICE FOR MEASURING LINEAR MOVEMENTS OF AN OBJECT
Document Type and Number:
WIPO Patent Application WO/1991/007638
Kind Code:
A1
Abstract:
The device comprises an optical radiation source (9) located on the radiation path after its passage through a movable plate (8) oriented parallel to a stationary plate (4) providing for propagation of the surface acoustic waves in the direction from a converter (3) of electric energy into the energy of said waves; and further comprises a unit (13) for comparison of a reference signal from the electric energy converter (3) with the information signal fed from the output of an optical radiation receiver (11), the movable plate (8) comprising alternating sections (15, 16) with different transmissive capacity for the optical radiation, spaced from each other by a distance equal to the length of the generated surface acoustic wave.
Inventors:
SNITKO VALENTINAS JURGEVICH (SU)
Application Number:
PCT/SU1989/000288
Publication Date:
May 30, 1991
Filing Date:
November 17, 1989
Export Citation:
Assignee:
KAUNASSK POLT INST ANTANASA (SU)
International Classes:
G01B17/00; G01D5/34; (IPC1-7): G01B17/00
Foreign References:
| SU823858A1 | 1981-04-23 | |||
| SU1546847A1 | 1990-02-28 | |||
| SU1525453A2 | 1989-11-30 | |||
| GB1410152A | 1975-10-15 | |||
| DE3343310A1 | 1985-06-05 | |||
| SU381880A2 | 1973-05-22 | |||
| SU767510A1 | 1980-09-30 |
Other References:
I.A. VIKTOROV, "Fizicheskie Osnovy Primenenia Ultrafioletovykh Voln Peleya i Lemba v Tekhnike", 1966, Nauka, (Moscow), pages 12,14.
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