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Encoders

DPL12VN24A25FB Application Field and Working Principle

Encoder is a kind of mechano-electronic signal converting device which integrates mechanical energy and electrical energy. It is widely used in industrial field such as aerospace, automotive, instrumentation, nuclear industry, optical communication and automation, and has made great contributions to the mechanization and automation of industrial field.Encoder, basically has two main categories, absolute type and incremental type, which divided by the signals generated and output. Among them, the DPL12VN24A25FB absolute encoder is widely used in servo motor control systems due to its good accuracy, fast response, wide dynamic range, low cost, semiconductor integrated circuit technology and other advantages. The DPL12VN24A25FB Absolute Encoder is a multifunctional, high-performance encoder which integrates two high-precision position readouts (A-Phase and B-Phase) and one high-resolution signal output by potentiometer. The resolution of the encoder is up to 25 bits, and the maximum input frequency can reach 1MHz. The A-phase and B-phase signals are square waves, whose output phases are related to relative angle between the maximum and minimum angle of encoder. The resolution of these two signal can reach 12 bits .The working principle of DPL12VN24A25FB Absolute Encoder is based on the conversion of mechanical angle into electrical value. The encoder mainly consists of two parts: an encoder disc and a potentiometer. The encoder disc is an assembly of light sources, chromatic filters and photodetectors. The potentiometer is composed of three pins. The encoder disc rotates with the connected motor, and the outputs of the two photodetectors rotates synchronously with the encoder disc, and the magnitude of output voltage is proportional to the position of encoder disc. The potentiometer get the pulses from photodetectors by these three pins and then convert them into electrical signals and output them.Compared with incremental encoder, the absolute type encoder has the following advantages:First, due to its high-speed signal output which enables mechanical angle into electrical signal instantly, it can accurately calculate the angle of output shaft in the range of 0 ~ 360 degrees.Second, the absolute type encoder can quickly return to zero position,so that the skill of returning to home position from any other position can be achieved.Third, its signals output are electrical pulses, which can be widely used in the automatic control system,in order to realize the real-time monitoring of output shaft angle, speed and relative coordinates.Fourth, the absolute type encoder has compact size, light weight, large capacity, high reliability and strong environmental adaptability. Finally, the absolute type encoder can provide reliable information even after a sudden power failure, which ensures that the work can be continued in real time after power system recovery. These advantages make DPL12VN24A25FB absolute encoder a kind of suitable, reliable and economic encoder in all kinds of servo control system.With the development of technology, the research and application of encoder are becoming more and more extensive, and the types of encoders are becoming more and more abundant. In summary, the absolute type encoder of the DPL12VN24A25FB model is an excellent encoder, which has a wide range of application and excellent performance in the industrial control system, and can meet the needs of different industries.

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