rsowell wrote:What data loggers do you use for vehicle testing? Circle track or Drag. What are the most common data points you capture?
I have been a system programmer for 20 years and have some low cost ideas for the sportsman racers. Trying to see if it's practical to pursue.
Thanks for any input,
I think you need to decide if youare testing the engine or vehicle.
For a circle track vehicle
shock pots and sample at least 250hz
4 wheel speed sensors 100hz
steered angle 100hz
brake pressure fron and rear 20 hz
accelerometer x y z 20 hz
TPS 20 hz
RPM 20 hz
Beacon reciever and transmitter good ones are expensive but needed if you want multiple segments or in a pinch a good gps will work too and have an inexpensive beacon reciever /transmitter setup for just the start/finish line. The gps solution being useful is a function of the speed of the car.
Obviously if engine testing is wanted the array of sensors will change completly the same for drag raceing.
I think youare going to find that high quality sensors will be many times more expensive than a modest data logger and usually the deal breaker.
If you use cheap sensors or slow sample rates you will have data that is useless and at times worse than none.