Knowledge application of encoder

The encoder is a rotation sensor, which converts the rotation displacement bai into a series of du digital pulse signals. These pulses can be used to control angular displacement. If the encoder knife is combined with a gear rod screw screw, it can also be used to measure linear displacement. After the encoder generates the electrical signal, it is processed by the numerical control numerical control machine tool, programmable controller PLC, control system, etc. These sensors are mainly used in the following fields: machine tools, material processing, motor feedback systems measurement control equipment. The angular displacement conversion of ELTRA encoder adopts photoelectric scanning principle. The reading system is based on the rotation of the radial index plate, which consists of alternating light-transmitting windows opaque windows. The system uses an infrared light source to illuminate vertically so that the light will project the image on the flat panel onto the surface of the receiver. The surface of the receiver is covered with a layer of grating, called a collimator, which has the same window as the optical disc. The job of the receiver is to feel the light changes produced by the rotation of the disc, then convert the light changes into corresponding electrical changes. In general, the rotary encoder can also get a speed signal feed it back to the inverter to adjust the output data of the inverter. According to the detection principle, encoders can be divided into optical encoders, magnetic encoders, inductive encoders capacitive encoders. According to its scaling method signal output form, it can be divided into incremental type, absolute type mixed type. (representative)

The photoelectric encoder is a sensor that uses the principle of grating diffraction to realize displacement digital conversion. Through photoelectric conversion, the mechanical geometric displacement on the output shaft is converted into a pulse digital sensor.

The ordinary photoelectric encoder is composed of grating disc, light-emitting element photosensitive element. The grating is actually a disc engraved with regular light-transmitting opaque bars. The light flux received by the photosensitive element changes synchronously with the light transmission strip. The output waveform of the photosensitive element is shaped becomes a pulse signal. It outputs a pulse. According to the pulse change, the displacement of the device can be measured controlled.

DEUPREE (Qingdao) Industrial Technology Co., Ltd. is an integrated enterprise focusing on the research development of automated industrial technology equipment manufacturing. The company’s products mainly include rotary motion sensors, linear displacement sensors, object recognition sensors, laser rangefinders, process control measurement Class instruments, signal detection systems, signal transmission systems, immature drive systems, UPS safety power supply systems, automation equipment energy-saving cleaning auxiliary equipment systems are limited to this, we can also customize flexibly customize according to customer needs to meet different Different needs of customers.