Piher International Corp., Libertyville, IL, has announced the MTS 360 non-contacting SMD rotary position sensor that combines a through-shaft design with 360° absolute position feedback in an ultra-miniature size. Measuring 6 x 17 x 18 mm, the sensor can be integrated directly onto a PCB. The low profile enables the sensor to fit into space-restricted places. It relies on patented Hall Effect technology to enable true non-contacting, through-hole shaft sensing using standard SMD features. The offset through-hole accommodates the vacuum pickup tool, allowing use in automated SMD assembly systems. The standard model features a 4-mm double D-flat shaft and an 8-pad SMD footprint that is compatible in most reflow soldering systems. The sensor offers electrical angles up to 360° with no dead band, and linearity as low as ±0.5%. Rated for use at -40 to +150 °C, it can operate up to 300 RPM, and can be programmed with full-scale output with angles shorter than 360 degrees.

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This article first appeared in the May, 2011 issue of NASA Tech Briefs Magazine.

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