Method and apparatus for measuring the velocity of moved objects or the like
US4527894A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method and apparatus for measuring the velocity of a moving object. Measuring beams composed of sequences of optical pulses are directed towards the object which is to be measured and follow such object. Based upon transit time measurements of reflected pulses there are formed distance values and distance difference values. While taking into account the time interval of the pulse sequence there are computed velocity measuring values and velocity values computed from homogeneous groups of values are displayed as reliable velocity values. By means of a measuring beam deflection system there are directed measuring beams into defined solid angle sectors towards the object which is to be measured, and reliable velocity measuring values computed from homogeneous groups of measuring values from the measuring channels correlated to the individual solid angle sectors are displayed as binding or valid velocity measuring values if there is present a confirmation of the value from further solid angle sectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.