US3836260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick response angle transducer
Assignee: Individual
•
Filing: 1973-05-08
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Granted: 1974-09-17
•
Expires: 1993-05-08
Abstract
Abstract A quick-response transducer of angles of rotation of various members and devices about their axes comprising a mirror mounted on an axle, a collimated light beam source, a reflecting prism, two differentially connected photocells with a common load, a d.c. voltage amplifier, a galvanometer with mirror which is fixed by means of a holder to the galvanometer''s movable frame and is optically associated with the axle-mounted mirror, the galvanometer being arranged in direct proximity to the axlemounted mirror in order to extend the range of the measured angles of rotation of members and devices about their axes, wherein the movable frame of the galvanometer is coupled to the output of the d.c. voltage amplifier.
Inventors
- 👤 A Karelin
- 👤 L Ulyanov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:52
CPC Classifications
G; G01; G01R; G01R17/00; G01R17/02; G01R17/06; G01R17/08; G01D; G01D5/00; G01D5/26; G01D5/28; G01D5/30; G01D5/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A quick-response transducer of angles of rotation of various members and devices about their axes, comprising a mirror mounted on an axle; a collimated light beam source optically associated with said mirror mounted on said axle; a reflecting prism; two differentially connected photocells with a common load, which are optically associated via said reflecting prism with said mirror mounted on said axle; a d.c. voltage amplifier with an input and an output, the input of said amplifier being connected to the common load of said two differentially connected photocells; a galvanometer with a holder, a movable frame and a mirror fixed by means of said holder to said movable frame of said galvanometer; said mirror following the rotation of said movable frame and being optically associated with said mirror mounted on said axle; said galvanometer being arranged in direct proximity to said mirror mounted on said axle, in order to extend the range of the measured angles of rotation of said members and devices aBout their axes; said movable frame being connected to said output of said d.c. voltage amplifier.
Claim 2
Dependent Claim
180 words
A quick-response transducer of angles of rotation of various members and devices about their axes, comprising a mirror mounted on an axle; a collimated light beam source optically associated with said mirror mounted on said axle; a reflecting prism; two differentially connected photocells with a common load, which are optically associated via said reflecting prism with said mirror mounted on said axle; a d.c. voltage amplifier with an input and an output, the input of said amplifier being connected to the common load of said two differentially connected photocells; a galvanometer with a holder, a movable frame and a mirror fixed by means of said holder to said movable frame of said galvanometer; said mirror following the rotation of said movable frame and being optically associated with said mirror mounted on said axle; said galvanometer being arranged in direct proximity to said mirror mounted on said axle, in order to extend the range of the measured angles of rotation of said members and devices aBout their axes; said movable frame being connected to said output of said d.c. voltage amplifier.
References Cited (Backward Citations)
US2136682A
Cited
US2246884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |