The most common cause to this problem is unsupported software. The first thing to try would be upgrading to the newest version of the software you are using. Most updates are free and available at:https://www.vernier.com/downloads/
Vernier Projec...
Follow these steps to use the Vernier Projectile Launcher:Vernier Projectile Launcher (VPL)
Place the launcher on a flat surface and secure using table clamps.Level the launcher and adjust the launch angle indicator if necessary.For detailed inst...
Go Direct® Projectile Launcher (GDX-PL)
Specifications and User Guide
Troubleshooting
General: Connect your sensor as described in the Getting Started instructions for your device.
Primary Test: Verify that the Project...
It is possible that when using the Cart Picket Fence (PF-CART), a photogate will detect the edges of the (clear) plastic picket fence and not just the black bars. We have done some testing and here is what we found:
We see this problem sometimes...
Spectrum Tubes (ST-AIR)
Spectrum Tubes (ST-AR)
Spectrum Tubes (ST-CO2)
Spectrum Tubes (ST-H)
Spectrum Tubes (ST-HE)
Spectrum Tubes (ST-NE)
Spectrum Tubes (ST-N)
TROUBLESHOOTING
- Primary Test: Insert the spectrum tube in the Power Supply (Single or ...
Parker Moreland did an excellent analysis on measuring g with a photogate and suggests a procedure for minimizing error. This article also includes a formula and chart for calculating a local value for gravitational acceleration.
"Improving precis...
When you first connect a photogate, the associated sensor meter shown in the software should read "Unblocked" or 0. You can test the photogate by fanning your fingers and passing them through the gate. The indicator LED on the photogate will light ea...
Yes. We have tested this with the Green Diffraction Laser (GDL-DAK) and it effectively activates the photogate's photo-transistor.
A Class 2 laser is generally considered safe as the blink reflex will limit exposure to short time periods. Direct ...
This has not been empirically tested at Vernier. But we are rather confident that a photogate should not be used for tests like this. High speed video is a much better solution that is both easier to set up and is a bit safer for the user.
We rec...
Check the position of the sliding shutter on the inside of the photogate. Since the shutter is black, it is easy to miss its position. The shutter slides back and forth to block the phototransistor on the inside of the gate. If the inside of the gat...