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发明公开
CN104613995A 编码器、具有编码器的电机、和伺服系统 有权

编码器、具有编码器的电机、和伺服系统
摘要：
本发明涉及编码器、具有编码器的电机、和伺服系统。一种编码器(100)，包括：分别具有沿着测量方向并排设置的多个反射狭缝的多个狭缝轨道(SA，SI1，SI2)；被配置为向多个狭缝轨道(SA，SI1，SI2)射出扩散光的光源(121)；被配置为接收被具有增量图案的狭缝轨道(SI2)反射的光的受光阵列(PI2)；被配置为接收被具有比其他的增量图案具有更长的间距的增量图案的狭缝轨道(SI1)反射的光的受光阵列(PI1)；以及被配置为接收被具有绝对图案的狭缝轨道(SA)反射的光的受光阵列(PA)。
摘要（英）：

An encoder includes a plurality of slit tracks, a point light source, a first light-receiving array, a second light-receiving array, and a third light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The first light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern. The second light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns. The third light-receiving array is configured to receive light reflected by the slit track comprising an absolute pattern.

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