A simple resistance-to-time converter for signal conditioning of resistive transducers

A linear resistance-to-time (R-t) converter consisting of a bridge amplifier and a comparator is described. While possessing a high order of resolution and linearity as a recently reported R-t converter, the present circuit has the advantage of being simpler, insofar as it employs one op-amp less. Furthermore, the offset period is adjustable by a single element, without this affecting the sensitivity. Experimental results are given in support of the theory.