Device for measuring the speed of a moving object
US4959807A · kind A · utility
10Cited by
15References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1988 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Oct 11, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/66
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for measuring the speed of a moving object has first and second impact detectors separated by a preselected known distance and disposed in the path of movement of the object. As the object strikes the first and second detectors, the detectors each produce a signal. The signals are separated by a time interval indicative of the distance between the detectors. The elapsed time between the signals is measured by a counter device, and the speed of the object is calculated by a programmable device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.