Absolute encoder raises resolution to 30bit
A
SICK (UK) product story
Edited by the Engineeringtalk editorial team
Jan 29, 2007
Encoder can offer 30bit resolution, making it ideal for systems and machinery that demand high levels of accuracy and repeatability, such as positioning mechanisms for telescopes.
Sick (UK) has launched a new encoder that, when coupled to special evaluation electronics, can offer 30bit resolution.
This level of accuracy will be of huge interest to those working with and designing systems and machinery that demand high levels of accuracy and repeatability, such as positioning on pan and tilt assemblies and highly accurate azimuth and altitude positioning for telescopes.
With a resolution up to 262,144 x 4096, the encoder is available in single- and multiturn variants as fully sealed IP65-rated versions or modular designs to enables users to incorporate them into their own housings.
A low part count, high operating temperature range (up to 125C) and high level of shock and vibration resistance widen the application base yet further.
For example, military equipment, where there is a need for high accuracy and robust construction, and metal processing plants, which require resistance to high operating temperatures.
In operation the encoders are fully absolute, with all multiturn variants using a gearing system to form positional values - there is no battery buffered memory.
Recognising the need that control cabinets may need to be located some distance from the application, the encoders can communicate with the necessary evaluation electronics over distances up to 100m.
Output from the evaluation electronics is SSI or Profibus, with DeviceNet, CANopen and Ethernet versions being available very soon.
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