Muzzle velocity chronograph
US4030097A · kind A · utility
Inventor
Key dates
| Filing date | Feb 2, 1976 |
| Grant date | Jun 14, 1977 |
| Priority date | — |
| Expiry date | Feb 2, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/585
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A chronograph uses a Doppler radar technique to determine the muzzle velocity of a bullet discharged from small arms such as pistols and rifles. A radar unit is placed in near proximity to the firearm to track the bullet while it is still relatively close to the muzzle. The radar unit is equipped with an antenna which is insulated from the sonic disturbance created by the firearm blast by sonic damping means formed exteriorly on the antenna. Measured spacing and orientation of the antenna with respect to the firearm diminishes the sensitivity of the antenna to the electromagnetic disturbance associated with the firearm blast. Doppler signal processing means are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.