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Moiré Displacement Transducer for N/C Systems

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2 Author(s)

Noncontact method of sensing accurately the magnitude and direction of displacements is essential in systems such as the numerically controlled machines. A displacement transducer, using Moiré transmission gratings is described. The notable feature of this instrument is that it requires only gratings of small lengths, even for measurement of large displacements.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:27 ,  Issue: 1 )