Procedure for analyzing reciprocating motion
US4637727A · kind A · utility
7Cited by
1References
8Claims
0Family size
Inventors
Key dates
| Filing date | Dec 8, 1983 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Dec 8, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A procedure for analyzing the reciprocating motion of a given object or its motion component transversal to the object's direction of travel, based on the passage time of electromagnetic radiation in the optical range and wherein by a light source, such as a laser or photodiode, a periodic light beam is directed on the object. The change of the passage times of light pulses that have travelled to the object and been reflected back therefrom, in relation to a given reference value, is transformed into an analog voltage proportional to the change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.