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P+F Pepperl+Fuchs encoder photoelectric encoder is a sensor that converts the mechanical geometric displacement on the output shaft into pulses or digital quantities through photoelectric conversion. This is the most widely used sensor at present. The photoelectric encoder is composed of a grating disc and a photoelectric detection device. The grating disc is a circular plate with a certain diameter and a number of rectangular holes are equally opened. Since the photoelectric code disc is coaxial with the motor, the grating disc and the motor rotate at the same speed. The detection device composed of light-emitting diodes and other electronic components detects and outputs several pulse signals. By calculating the number of pulses output by the photoelectric encoder per second, the current motor can be reflected. 的rpm。 In addition, in order to determine the direction of rotation, the code wheel can also provide a phase difference of 90. The two pulse signals.

A friend once asked whether the encoder resolution will be affected by the environment? The encoder resolution is not only related to the number of reticles, but also changes due to the influence of electrical signals. It is adjustable and controllable. It can be changed with the subdivision of the signal. The higher the subdivision ratio , The smaller the resolution, but the higher the subdivision multiple, the greater the error introduced. The precision is more inclined to the mechanical aspect. Encoder resolution-the number of open or dark engraved lines provided by the encoder per 360 degree rotation is called resolution, also known as resolution division, or directly called the number of lines, generally 5 to 10,000 lines per revolution. Pay attention to the following points when choosing a rotary P+F Pepperl+Fuchs encoder: 1 Resolution: relationship with position accuracy; 2 Appearance size: relationship with installation space; 3 axis allowable load: relationship with life and installation status; 4 Allowable maximum speed: the relationship between the number of rotations of the drive shaft such as a motor and the resolution; 5 output phase difference: matching with the control part of CN machinery, etc.; 6 adaptability to the environment: the relationship with the use environment; 7 increments Type, absolute value type: considering the cost, whether it is necessary to detect the absolute value position when the power is cut off, whether there is a counter, anti-noise performance, etc.