FIELD: electrical engineering. SUBSTANCE: linear motor has inductor 1 with winding 2, armature, position photodetector. Armature is provided with light-reflecting strip 7 having repetitive sections. Each section has three elements two of which are equal and spaced at certain angle apart and in respect to inductor longitudinal axis; third element is parallel to inductor longitudinal axis. Photodetector is mounted on inductor and has photosensors 9 and 10 and emitter 8 placed between them. Distance between emitter and sensor equals projection of inclined element of light-reflecting strip to longitudinal axis of inductor. EFFECT: enlarged functional capabilities of linear motor due to photodetector design and bent shape of light-reflecting strip which makes it possible to detect direction of armature travel. 4 dwg
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