亚洲av无码国产永久播放蜜芽_国产国语对白精品毛片好看到停不下来！_国产在线日韩精品一区二区_日韩欧美～中文字幕_91cao在线播放国产_日韩欧清无码激情性视频_黄色人人操免费网站_公孙离流泪吐口水躺床_国产剧情AV新春下药_少妇三级免费亚洲

Incremental encoder displacement is converted into periodic electrical signals, then converted into electrical signals that count pulse represents the magnitude of displacement by the number of pulses.
The encoder is a device the angular displacement or linear displacement into electrical signals. The former is called code disc, the latter known as the yardstick. In accordance with the readout mode encoder can be divided into contact and non-contact two. Contact output using brush, a brush contact conductive region or insulating region to represent the status code is "1" or "0"; the acceptance of non-contact sensor is a photosensitive element or magnetic element, when using a photosensitive element photic zone and opaque regions to indicate the status code is "1" or "0."
When the incremental encoder shaft rotation, there is a corresponding pulse output, identification and the number of pulses increase and decrease its rotational direction by means of the rear of the sentence to the circuit and counter. The count starting point arbitrarily set, enabling multi-coil unlimited accumulation and measurement. It can also be issued per revolution a pulse signal Z as a reference mechanical zero position. Encoder shaft revolution will output a fixed pulse number of pulses is determined by the number of line encoder grating. When the need to improve the resolution, use 90 degrees out of phase A, B two signals on the original frequency doubling the number of pulses, or replace the high-resolution encoder.