Re: tilt sensor, or motor load indicator... by Wagner Lipnharski .

> (Example: take a wheel and spin it. Then, change the direction > of its axis. YOU will feel a torque on your hands,but the wheel > won't slow down). I wonder where comes from the energy torque you feel in your hand when tilting the spindle... I suppose it is exactly the angular inertia trying to compensate the 3 vectors changing, so there are some energy transfered. The best way to read the current motor is just converting it to voltage, filter it in someway to allow you to get a stable reading and feel that tilt energy transfer. But, I believe the actual missile guidance systems doesn't use anymore the perfect gyros with "swiss precision" bearings and sensors... just plain accelerometer chips, cheap, easy to read and very small. Take a look at Analog Devices ADXL50, it measures ±5 g range, outpus analog signal from 0.25 to 4.75V with a power supply from +5 to +24V. A couple of them should solve your problem. try: http://products.analog.com/products/info.asp?product=ADXL50 Wagner.