High accuracy shaft angle linear DC voltage conversion using low accuracy devices

摘要

In order to provide high accuracy shaft angle to linear DC voltage conversion using low accuracy devices, a linear synchro is excited by a 2. 5 KHZ square wave which is power buffered, the square wave also used to synchronously demodulate the output of the wound component by sampling and a demodulated voltage then filtered and scaled to the required levels using commonly available operational amplifiers.