B581 Yaw Measuring System
Standard Equipment by HPI, Austria
The Yaw Measuring System is used for measuring the projectile angle after muzzle. Caliber range 4-14.5mm & Measuring velocity 12-1850m/s.
The projectile must strike the substance with the least amount of YAW when being tested for protection, among other things.
The projectile’s entire kinetic energy will only then be certain to function at its best.
- The test sample will be put close to the B581 system.
- A reference rope must be used to calibrate the projectile trajectory once after each system setup.
- Any projectile that passes the trigger screen’s active sensor area when the room is dark activates two spark flash lights simultaneously.
- The orthogonally placed digital cameras capture and upload the shadowgraph projections on the reflecting foils to the PC.
- The calibrated trajectory is used to automatically evaluate both of the individual projectile angles (α and β).
- The projectile YAW angle will be determined automatically based on the distinct projectile angles of the left and right cameras.
Saftware
The software is an integral part of the System. It includes the System control, data recording and automatic evaluation of the YAW Angle. It is easy to operate and allows quick a reliable interpretation of the results.
EXAMPLE OF HOW YAW ANGLE IS USED.
| Calibre Range | 4 to 14.5 mm / 20 mm FSP |
|---|---|
| Velocity Range | 10 to 1800 m/s |
| Single Round measurements | Non-tracer |
| Active Sensor Area | 380 mm x 380 mm |
| Accuracy | |
| FSP | <1 Degree (length/diameter ration of 1.16) |
| 5.56 x 45 mm | <0.5 Degree (length/diameter ration of 4.1) |