High accuracy digital linearization of frequency signals of transducers

The signals from transducers having non-linear frequency output have to be linearized by a signal converter. The paper describes first some accepted linearizing method and afterwards the digital linearizer developed in the Central Measurement Research Laboratory, Hungary, will be discussed. The DENsrroN electronic units connected to the frequency output density transducer correct digitally the error curve by pulse-rate modulation of clock-pulses. The system design of the instrument built up of integrated circuits is outlined, and various problems regarding the settings of the linearizer discussed.