Absolute, rotary, incremental and linear encoders - Elap choose your encoder
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An absolute encoder is a device that reports the shaft angle within a 360° range. An absolute encoder does not lose its position after a power-down and provides the absolute position upon power-up without requiring a home cycle or any shaft rotation. A traditional absolute encoder has one track per encoder bit, and provides one fixed resolution.
A rotary encoder, also called a shaft rotary encoder, is an electro-mechanical device used to convert the angular position of a shaft or axle to a digital code, making it a sort of transducer. These devices are used in robotics, in top-of-the-line photographic lenses, in computer input devices (such as optomechanical mice and trackballs), and in rotating radar platforms. There are two main types: absolute, and relative.
An incremental encoders is a device that reports the shaft angle within a 360° range. An incremental encoder does not lose its position after a power-down and provides the absolute position upon power-up without requiring a home cycle or any shaft rotation. A traditional incremental encoder has one track per encoder bit, and provides one fixed resolution.
An incremental encoder can serve as a pseudo-absolute encoder by providing a battery backup power supply to the encoder or by executing a home cycle after power-up. But a true absolute encoder does not need a backup power supply or a home cycle.
Elap S.p.A was founded in 1968 in Milan, and soon developed its activity in the field of counting and positioning equipments for industrial automation.
Since then experience and new ideas have joined to give rise to more and more advanced products, and nowadays ELAP production has extended to include several series of counters, visualizers, single and multi-axes positioners, controllers with embedded PLC,
and a wide range of position transducers: rotary and linear encoders, incremental and absolute sensors, potentiometers, magnetic transducers.
Following step by step the development of the new technologies, Elap always upgrades its products to reach the best price/performance ratio, while technical advice and assistance, as well as an efficient commercial network, are always at the Customer's disposal.
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