Three dimensional laser beam survey system
US4830489A · kind A · utility
88Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1986 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Aug 20, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A laser beam alignment system includes a transmitter which establishes a laser reference plane by continuously rotating a horizontal laser beam about the transmitter. A remotely located receiver senses the elevation of the laser reference plane and reflects a portion of the laser energy back to the transmitter where the reflected energy is employed to produce a signal indicative of the range of the receiver and its location with respect to a reference axis. The position of the receiver is thus established in three dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.