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What is the difference between magnetic rotary encoder and optical rotary encoder

by:HENGXIANG     2020-11-25
What is the difference between magnetic rotary encoder and optical rotary encoder article source: release time: 2019/05/16 hits: what is the difference between magnetic rotary encoder and optical rotary encoder? Magnetic rotary encoder using magnetic field sensor technology for Angle positioning. A fixed on the shaft encoder permanent magnet to produce a magnetic field, and by induction sensor sampling, and then to produce a unique absolute position readings. About rotary encoder, belongs to a kind of encoder, mainly the mechanical movement speed, the effect of parameters such as position, Angle and distance. As the encoder signal detection method has been widely applied in various industries. Rotary encoder by grating plate ( Also known as the index code disc) And the photoelectric detection device ( Also known as the receiver) Composition. Grating plate in a certain diameter of circular plate is divided into several rectangular hole. Because of the grating plate and motor coaxial, when the motor rotates, grating disc, together with the motor rotate at the same speed. Light-emitting diodes (leds) vertical grating plate, and the grating plate of the image projected on the photoelectric detection device composed of photosensitive components ( The receiver) On. Caused by the rotating grating optical changes resulting from the conversion of the corresponding pulse signal output. Encoder disc material with glass, metal, plastic, etc. Glass encoder deposition on the glass has a very thin line. It has good thermal stability and high precision. Metal code is not easy to broken, because they are directly connected and no gap. Company produces IXARC magnetic encoder performance optical encoder, the technological leap based on a new generation of sensor system. IXARC magnetic encoder USES custom hall sensor, a powerful 32-bit microprocessor to complete complex signal processing, the two techniques have greatly improved the resolution and accuracy of the product, and make the access time only a few microseconds. Company on IXARC products configured with a incremental interface, this technology has been used in all the encoder products range. Based on hall effect sensor system is in a stage of lap absolute encoder. This type of encoder to measure the revolution must connect the external power source. The company USES an energy collection system, the system is based on wigan effect, from the battery from the gears. The service life of battery co. , LTD. , weight big, contain harmful material, using battery can bring many adverse effects to product; And actuator fault is large volume, complicated structure, high cost, not resistant to impact and vibration. The energy collection system is not affected by rotation speed, even under the condition of close to zero speed, it can also produce short powerful voltage pulse count in absolute encoder electronic equipment to provide enough power. Therefore, equipped with this energy collection system of tachometer without any external power supply. Since 2005, the company is the application of this principle in its products, even in harsh conditions for years, and no maintenance is measured in a reliable way also can guarantee absolute position. , durable, simple mechanical structure, affordable - — No batteries, no gear, compact design, suitable for installation in a narrow space optical rotary encoder is a key part of the encoding plate mounted on the shaft encoder. This dish with transparent material, the above is divided into the concentric design of transparent and opaque areas. Infrared light from the LED through the code disk, projected on the optical receiver array. When the shaft turn, there will be a set of unique optical receiver illuminated by the light or the tray design, block holds off the light. For many, an encoder with another group of code disc, be installed in the transmission chain. When the main encoder shaft rotates, the encoding plate mesh together like a meter dial. Each code wheel rotation position is optically controlled, net output of the encoder shaft revolutions numerical booz's IXARC the highly integrated optical - optical absolute rotary encoder Application-specific integrated circuit, each turn resolution can be as high as 16 ( 65536 steps) 。 More range of ring type encoder can be encoded by mechanical mesh plate extended to more than 16384 RPM. Dynamic response, high resolution, high accuracy, sensitivity, suitable for strong magnetic field environment, without the risk of missing absolute position, without any spare batteries Shanghai electronics co. , LTD. , for the German booz, ) The only official gold medal agent in China, is responsible for the brand and in related industries in the field of product marketing and after-sales service! Welcome to choose and buy.
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