Vernier Projectile Launcher (VPL)

Specifications and User Guide

Troubleshooting

• Primary Test: Verify that the Projectile Launcher is powered from either an interface via the photogate cable or from AC power via a LabQuest Power Supply.
• Secondary Test: Check that the hand pump is securely attached to the valve on the launcher. Watch the pressure gauge on the hand pump as you pressurize the system, and verify that the system is holding the pressure and that there are no pressure leaks.
• Tertiary Test: Double-check that you continue to hold the “arm” button while you press the “launch” button. The two buttons must be engaged simultaneously to launch the projectile.

Additional Troubleshooting

• How do you perform a basic launch with the Vernier Projectile Launcher or Go Direct Projectile Launcher?
• My software does not recognize the Projectile Launcher.
• How do you level the Projectile Launcher?
• My Vernier Projectile Launcher does not fire.
• Projectile launcher does not register block / unblock events.
• What can I do about corrosion on the launch ball for the Vernier Projectile Launcher?
• The Time of Flight pad sometimes fails to work.
• Why don't I get consistent launch speeds with my projectile launcher?
• Projectile Motion lab only registers four events with Time of Flight Pad.
• The projectiles for the Vernier Projectile Launcher and Go Direct Projectile Launcher do not easily go into the barrel.
• Using VPL with another sensor causes Logger Pro to crash
• My Vernier Projectile Launcher disappears or identifies as the wrong sensor in LabQuest App after firing.
• What is the volume of the air chamber in the Projectile Launcher?
• Why should I buy the Vernier Projectile Launcher instead of the one from Arbor?
• How do I set up Logger Pro to measure the speed of the ball from a Projectile Launcher using the ball diameter instead of the photogate spacing?

Related Articles

• Independence of Motion Accessory Troubleshooting & FAQs
• Time of Flight Pad Troubleshooting and FAQs
• Go Direct Projectile Launcher Troubleshooting and FAQs

Specifications

• Launch angle: 0 to 70 degrees
• Range: up to 2.5 m
• Power:
  ⚬ Option 1—Connect the launcher to an interface via the included photogate cable.
  ⚬ Option 2—Connect the launcher to a wall outlet via a LabQuest^® Power Supply (LQ3-PS).