Linearizing transducer characteristics

Most of the practical transducers fall into two categories regarding their input-output characteristics: type I, with a characteristic that is exponentially rising, and type II, with a characteristic that is exponentially decaying. While type I is easily linearized using a logarithmic converter, type II needs additional inversion means for the purpose of linearization. A technique for linearizing type-II transducer characteristic using a log-converter and a FET is presented, and its performance is compared with that of a simple single-stroke digital technique. Examples and experimental results are presented and discussed.<
>