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Sensors/MEMS??

Encoder offers 17bit resolution, 360 full rotation

Posted: 05 Sep 2011 ?? ?Print Version ?Bookmark and Share

Keywords:high-resolution encoder? single-turn encoder? sensor? servo feedback application? motor feedback application?

Avago Technologies introduces a high-resolution absolute optical encoder for servo and motor feedback applications. The AEAT-9000 ultra-precision absolute encoder provides accuracy for smooth motor drive performance. The device is available in a modular package that enables it to be mounted in space-constrained locations with various mounting requirements, simplifying design and shortening assembly time.

The Avago AEAT-9000 single-turn encoder offers up to 17bit resolution for precise angle measurement over a full rotation of 360. The device's modular design consists of a read head module and a high-precision code disk. The modular package of the AEAT-9000 encoder enables it to be directly integrated on the motor. Leveraging differential internal and external signal paths, the absolute encode boasts noise cancellation features for robust system noise-immunity in industrial environments, making it ideal for servo motors, industrial and maritime valve control applications, high-precision test and measurement equipment, and factory automation equipment.

The AEAT-9000 encoder delivers high-accuracy positioning with 2-channel true differential Sine/Cosine outputs and A/B incremental analog outputs all with 2048 counts per rotation. The multiple output formats offer flexibility to support both absolute and incremental position information. In addition, the encoder incorporates photo detectors for electrical alignment on radial and tilt.

Additional features of the AEAT-9000 encoder include: 1) on-chip interpolation and code correction compensate for mounting tolerance; 2) selectable direction for up/down position counters; 3) built-in monitor track for monitoring of LED light level; 4) error output for LED degradation; and 5) -40C115C operating temperature.

Samples and production quantities of the AEAT-9000 absolute encoder are available through Avago's direct sales channel and worldwide distribution partners.





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