Help me: problem reaction time |
09-13-2013, 07:16 PM
Post: #4
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RE: Help me: problem reaction time
(09-13-2013 06:28 AM)Nicola Wrote:(09-10-2013 12:59 AM)xavi Wrote: Hello Nicola, welcome to the forum Hello You can use two Chronopics, but the problem in this situation that they have to be synchronized. To synchronize, one solution is to push them at the same time, but this is not precise, there's always error. It's better to have some electric connection to send send the synchronizing signal to both. We are not currently selling this, maybe we can do it, but it's better if you ask any electrician friend or someone in your workplace that makes it. Then, protocol is: 1st chronopic is connected to contact platform 2nd chronopic is connected to start push button and photocell at the end of the 30m both chronopics are also connected to a new push button used to synchronize Athlete is outside the platform You click on a reactive jump test (unlimited is ok). Jump protocols is better for this because you will know contact time and flight time. Press "Start" on Chronojump. Then you synchronize both Chronopics with a push button connected to both. Then person gets in the platform Then you when person is prepared, you push your press your button Then athlete see signal and runs. You will need to do some arithmetic operations in order to get the correct time. If this is ok for you then we can continue thinking on this. BUT in my opinion is a lot better to have only one Chronopic, a photocell just in front of the foot, and another photocell at the end. You press start button and then the person start running. When foot leave the ground is detected by the photocell. Cheers |
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Messages In This Thread |
Help me: problem reaction time - Nicola - 09-09-2013, 02:23 AM
RE: Help me: problem reaction time - xavi - 09-10-2013, 12:59 AM
RE: Help me: problem reaction time - Nicola - 09-13-2013, 06:28 AM
RE: Help me: problem reaction time - xavi - 09-13-2013 07:16 PM
RE: Help me: problem reaction time - Nicola - 09-30-2013, 04:45 PM
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