Apparatus for determining projectile position and barrel pressure characteristics
US4147055A · kind A · utility
3Cited by
7References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1977 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Dec 15, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Measurement and correlation of chamber pressure and projectile position d is accomplished using an array of phototransistors, illuminated by collimated light, which phototransistors are sequentially switched off due to the interruption of the collimated light by the passing projectile. Pulses generated thereby may be displayed on an oscilloscope along with the pressure-time trace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.