Differential transformers for mechanical measurements

A description is given of a typical differential transformer, together with a brief outline of the principles underlying the operation and design. Circuits for use with this type of transducer are given, and the influence of the source of energization is discussed. A means of shifting the electrical zero is shown, together with methods for achieving high mechanical sensitivity. Some standard production transducers employing differential transformers are described and compared with their mechanical counterparts. A number of uses is outlined.