Biomedical Engineering Reference
In-Depth Information
reverse of the direction the ball is traveling. We speculate that recoil is due to
the pressure differential between the muzzle seal, which is still in place at this
phase of firing, and the open breech, which is vented to the atmosphere.
3.2. Design of Subsonic Pneumatic Gun
Measurement of the velocity of the particle as it exits the barrel is
necessary in this study. A simple and cost-effective technique is created to
measure velocity in an existing subsonic pneumatic gun setup with the use of
lasers, photodiodes, housings, and a digital oscilloscope. The barrel with the
velocity measurement device attached is shown in Figure 39. The air tank,
electric solenoid valve, and hose to attach to the barrel can be seen in Figure
40.
Reproduced with permission. Copyright retained by Inderscience Publishers.
Figure 39. Subsonic Gun with Measurement Device Attached.
Reproduced with permission. Copyright retained by Inderscience Publishers.
Figure 40. Air tank and Solenoid Valve Used in Subsonic Gun.
