Automation Parts

Couplings For Individual Encoder Applications Controlflex from Schmidt-Kupplung is designed for the requirements of shaft encoders. This encoder coupling compensates all kinds of misalignment with very low restoring forces and in a remarkably small envelope. The coupling is electrically insulating, builds short and always works with constant angular velocity. The coupling manufacture also realises individual systems and encoder-coupling solutions optimised for specific applications. These include, for example, shaft-encoder applications with positive locking and fail-safe for stage technology, with customer-specific hubs for expanding or hollow shafts or with greater misalignment requirements.

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.

Quadrature Encoder Features Eight Channels Measurement Computing has announced the release of a high-speed, eight-channel quadrature encoder module. The USB-Quad08 data-acquisition device provides simultaneous input and decoding for up to eight incremental quadrature encoders at resolutions up to 48 bits. Its eight quadrature counters with indicator LEDs support both differential and single-ended inputs, and feature multiple programmable counting modes. The counters have less than 10ns jitter, and accept input up to 10MHz. The streaming speed to the PC is software configurable up to 8MS/s. The USB-Quad08 can also serve as a high-speed pulse counter for general counting applications. The eight digital I/O bits support up to 42.4Vpk/50V DC with clamping diodes for CEMF suppression. Other features include: configurable for either single ended or differential; two timer outputs capable of up to 5MHz output rate; 16-bit, 32-bit and 48-bit resolution; and pacing (external/internal) and...