| Author | Message | ||
     Anonymous |
I am testing aerodynamics of cars. I am doing this by running them on a track and testing the elapsed time. I have the designs made but I dont think they are different enough to cause a huge difference in elapsed time. So I was thinking that this should be pretty exact. I don't think a stopwatch depending on my reflexes is fast enough either so I was wondering if there was a way I could create a timing device that works like the drag strips where a "beam" ( I think a light beam) is broken at the start of the race by a car, and the timer is also started. At the end off the track another "beam" is broken and the time is stopped. | ||
| Simon Quellen Field (Sfield) |
That's not hard to do. There are many such circuits on the electronics web pages, and in the electronics magazines and books. However, I usually just use a video camera. The resolution is 1/30th of a second, which is usually good enough. To do it without a lot of extra electronics, just use a port on your computer, and have the computer do the timing and print out the answer. | ||
| mnado (Mnado) Senior Member Username: Mnado Post Number: 143 Registered: 12-2005 |
I think camera is a better thing to use how do you call the one used in horse racing?I think it's what Simon is suggesting to use. |
