Patent ID: 8054062
Filing Date: 2011-11-08
Classification: G01P

Abstract:
1. A speed sensor comprising: a housing; a variable reluctance sensor (VRS) mounted at least partially within said housing; and a digitization circuit electrically coupled to an output of said VRS, said digitization circuit mounted within said housing, said digitization circuit configured to: receive an input signal from said VRS relative to a speed of a component being measured; convert a substantially sinusoidal output of said VRS into a digital output signal; and output a output signal for further processing, when measuring a relatively low speed the input signal comprises a first input amplitude and the output signal comprises a first output amplitude, when measuring a relatively high speed the input signal comprises a second input amplitude and the output signal comprises a second output amplitude wherein the first and second input amplitudes are different and the first and second output amplitudes are approximately equal.