Patent ID: 7855562

Claim:
A sensor system having fault detection capability comprising: a first transducer producing a first analog signal; a second transducer producing a second analog signal, said first and second analog signals representing a parameter being independently sensed by both of said first and second transducers; a subtraction circuit in communication with each of said first and second transducers for determining a difference between said first analog signal and said second analog signal to produce a difference signal; a summing circuit in communication with each of said first and second transducers for adding said first analog signal and said second analog signal to produce a transducer output signal; a first analog-to-digital converter (ADC) in communication with said subtraction circuit for receiving said difference signal and generating a corresponding digital difference signal indicative of a condition of said first and second transducers; a processor in communication with said first ADC for generating a logical output signal in response to said digital difference signal indicative of said condition of said first and second transducers; a second ADC in communication with said summing circuit, said second ADC receiving said transducer output signal and generating a digital transducer output signal indicative of said sensed parameter; and an output in communication with each of said processor and said second ADC for concurrent provision of said logical output signal with said transducer output signal.