| 摘要 |
380-90-005 POSITION MEASURING DEVICE WITH A PHASE ADJUST CIRCUIT AND PROCESS FOR PHASE ADJUSTMENT A position measuring device with a phase adjust circuit and phase adjust circuit process in which errors in the phase relationship between a pair of nominally 0.degree. and 90.degree. phase related quadrature signals may be corrected, by deriving a correction signal comprised of a selectively scaled and signed form of the 0.degree. signal and vectorially adding the correction signal to the 90.degree. signal. The circuit allows for electronic correction of the skew angle of a reading head grating in an optical type distance transducer. (FIGURE 2)
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