I’m thinking about putting together a data-logging system for an automotive project and I’m very interested in the design of the barnacle, it seems like it was almost made for the harsh environment you might find on a car. The problem is, I don’t think that 75°/sec is fast enough. I’m looking for something with at least 90°/sec (think of spinning a car 360° in 4 seconds). I figure in extreme cases, automobiles might even exceed 90°/sec. Will this ever be available, and if not, is there a reasonable substitute?

atmh:
I’m thinking about putting together a data-logging system for an automotive project and I’m very interested in the design of the barnacle, it seems like it was almost made for the harsh environment you might find on a car. The problem is, I don’t think that 75°/sec is fast enough. I’m looking for something with at least 90°/sec (think of spinning a car 360° in 4 seconds). I figure in extreme cases, automobiles might even exceed 90°/sec. Will this ever be available, and if not, is there a reasonable substitute?

Thanks!

Analog devices does sell faster gyros, I believe, up to 300°/sec, if you’re willing to pay for it. If you’re thinking about what to do above 75°/sec, you might want to consider using accelerometers. Some of them can measure in the milli-g range, and if your board is large enough, you can measure the centripetal acceleration due to the car’s rotation. The formula is a/g = ((2pi/360) °/sec)^2 * r/g, where r is the distance from the center about which you want to measure the rotation from. If r=10cm, you’ll get 1milli-g acceleration at about 56°/sec.