Set up a timer using one photogate

Use this timer to measure the speed of a cart.

Equipment setup

• Photogate with Photogate Bracket (ME-9806)

  Use a Wireless Smart Gate (PS-3225), a Smart Gate (PS-2180) with a PASPORT interface, or a Photogate Head (ME-9498A) with a digital interface.

• Cart and track

• Cart Picket Fence (ME-9804)

  The Cart Picket Fence has three flags of different length. Adjust the height of the photogate so that the desired flag passes through the photogate beam, as shown below.

  

Set up the timer

1. Connect the photogate to SPARKvue.
2. Under Select measurements for templates, click the Properties icon next to the photogate's name, or next to the digital interface's name if using a Photogate Head.
3. Click One Photogate or Device or Smart Gate Only, select Photogate Timing (One Photogate), and click OK.

4. Enter the Flag Length. Make sure to measure the length of the flag from end-to-end. Click OK when finished.

   

5. Check the boxes next to the measurements you want to display.

6. Select a template to display the selected measurements.

Record data

Click Start , then allow the flag to pass through the photogate. The software records the speed after the flag blocks and then unblocks the photogate beam.