中文介绍： MR-2005光电编码器是一种高精度的测长传感器，广泛应用于工业自动化领域。它由测长传动轮、信号接收和信号输出电路组成。传动轮通过与被测物（如纺织品、塑胶带）的反向摩擦滚动，或与被测物生产主机的主轴反向滚动，将实际长度单位信号输出给外接计数器，由计数器记录并显示其累计长度。该产品有三路信号输出，分别对应1米（蓝线）、0.1米（灰线）和0.01米（黄线），工作电压为DC6~12V，最快速度可达120米/分。它适用于印刷机械、包装机械、纺织机械、塑料橡胶机械、电线电缆设备、制药机械等所有需要自动检测产品长度的场合。

English Introduction： The MR-2005 photoelectric encoder is a high-precision length-measuring sensor widely used in industrial automation. It consists of a length-measuring drive wheel, a signal-receiving circuit, and a signal-output circuit. The drive wheel rolls in the opposite direction to the object being measured (such as textiles or plastic strips) or the main shaft of the production machine of the object being measured. Through the photoelectric signal conversion inside the encoder, it outputs the actual length unit signal to the external counter, which records and displays the cumulative length. This product has three signal outputs, corresponding to 1 meter (blue wire), 0.1 meter (gray wire), and 0.01 meter (yellow wire), with a working voltage of DC6~12V and a maximum speed of 120 meters per minute. It is suitable for printing machinery, packaging machinery, textile machinery, plastic and rubber machinery, wire and cable equipment, pharmaceutical machinery, and all occasions where automatic detection of product length is required.