The paper describes an inductive magnetic transducer for on-line recording of translations and vibrations. The transducer consists of an iron cored sensor coil and simple accompanying circuitry. The main features which are peculiar to the present transducer are (a) facility for linearizing the voltage versus displacement characteristic for certain regions of distances, (b) ability to measure vibrations and translations of both ferromagnetic objects and nonferromagnetic conductive objects, (c) relative simplicity of circuitry, and (d) the fact that only passive components are used for the transducer and an output voltage enhancement is attained by the employment of resonance. The paper is introduced by a comprehensive review of various types of magnetic transducers.
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