ASM Sensors (Elmhurst, IL) offers the extension of the POSIROT® family of magnetic rotary sensors, the PRAS20/PRAS21 series for use in the medical equipment industry. The noncontact position sensor uses an external position magnet to provide an absolute output signal over a 0 to 360 degree measurement range. The maximum measurement range is 360 degrees and may be ordered with smaller measurement ranges in 15 degree increments. The sensor output is an analog voltage signal, 0.5 V to 4.5 V. For the PRAS20 series, 0.5 to 10V and 4 to 20 mA outputs are also available. A redundant output is an available option in the PRAS20 series. The circuit board is fully potted to provide a high level of shock and vibration resistance.

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Medical Design Briefs Magazine

This article first appeared in the May, 2012 issue of Medical Design Briefs Magazine.

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