Automation Parts

Austriamicrosystems has introduced the AS5245, a magnetic rotary encoder IC designed to address automotive requirements such as reliability, accuracy and safety. Based on Austriamicrosystems' stacked-die technology, the AS5245 provides best phase matching capabilities. No additional temperature compensation, calibration or shielding against external magnetic stray fields is needed. The digital angle data of the AS5245 is provided as a simple serial interface or as a PWM signal. In addition, an incremental quadrature output mode with an improved interpolation algorithm can be enabled and permanently programmed with a resolution of 10 or 12 bit. An internal voltage regulator allows the AS5245 to operate at 3.3 or 5V supply within a wide ambient temperature range of up to 150C. The AS5245 is available in a lead-free QFN 32 package.

Aerotech has launched a range of precision worm-drive rotary stages featuring large through-apertures and a preload system that provides a high level of accuracy with minimal wear. The AGR series covers five models with internal diameter from 50-200mm and is available with continuous 360deg travel, or with a mechanically limited travel range (down to 5deg). Axial load capacity is up to 570kg and rated speed to 30rpm; and the range includes optional directly mounted encoders for best performance repeatability and negligible levels of hysteresis and backlash. Typical specifications across the AGR series include a 120 arc-sec positional accuracy without encoder fitted and 20 arc-sec when the servomotor mounted encoder option is used. Corresponding without- and with- encoder specifications for bidirectional repeatability are 30 arc-sec and 8 arc-sec. Stage resolution, with a 2500 line servomotor mounted encoder fitted on the largest stage, is 2.1 arc-sec - while the same size stage wi...