Analysis of the metrological characteristics of a differential-transformer tracking system

Conclusions

• 1. Balance conditions for a differential-transformer system are provided.

• 2. An expression for the error of a tracking system and for other important metrological characteristics are derived.

• 3. It follows from the results thus obtained that the operation of the system is based on the balancing of the mutual inductances of two differential transformers.

• 4. The essence of the remote measurement of forward movements consists in evaluating the displacement by means of a differential-transformer transducer which converts the movement into a mutual-inductance variation which is reconverted into a displacement at the far end.

• 5. Conditions are found whose application in designing a tracking system provides it with the best metrological characteristics. Expressions are found for the metrological characteristics' limiting values which serve to predict the tracking system's metrological characteristics in the course of its designing.