Angle detector and position measuring device

An angle detector includes a rotary scale having a scale pattern in which a plurality of patterns are arrayed along a circumference direction of the rotary scale, and a plurality of detection heads, each of which detects the plurality of patterns from the scale pattern. The plurality of detection he...

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Bibliographische Detailangaben
Hauptverfasser: Tanaka, Shunsuke, Kato, Yoshiaki, Mizutani, Miyako
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An angle detector includes a rotary scale having a scale pattern in which a plurality of patterns are arrayed along a circumference direction of the rotary scale, and a plurality of detection heads, each of which detects the plurality of patterns from the scale pattern. The plurality of detection heads are shifted from each other in the circumference direction of the rotary scale and are shifted from each other in a radial direction of the rotary scale.