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Hall Sensors for Extreme Temperatures
Institute of Physics, Poznan University of Technology, Nieszawska 13a, 61-965 Poznan, Poland
* Author to whom correspondence should be addressed.
Received: 19 November 2010; in revised form: 13 December 2010 / Accepted: 10 January 2011 / Published: 14 January 2011
Abstract: We report on the preparation of the first complete extreme temperature Hall sensor. This means that the extreme-temperature magnetic sensitive semiconductor structure is built-in an extreme-temperature package especially designed for that purpose. The working temperature range of the sensor extends from −270 °C to +300 °C. The extreme-temperature Hall-sensor active element is a heavily n-doped InSb layer epitaxially grown on GaAs. The magnetic sensitivity of the sensor is ca. 100 mV/T and its temperature coefficient is less than 0.04 %/K. This sensor may find applications in the car, aircraft, spacecraft, military and oil and gas industries.
Keywords: Hall sensors; n-InSb/GaAs; extreme temperatures; magnetic sensors
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Cite This Article
MDPI and ACS Style
Jankowski, J.; El-Ahmar, S.; Oszwaldowski, M. Hall Sensors for Extreme Temperatures. Sensors 2011, 11, 876-885.
Jankowski J, El-Ahmar S, Oszwaldowski M. Hall Sensors for Extreme Temperatures. Sensors. 2011; 11(1):876-885.
Jankowski, Jakub; El-Ahmar, Semir; Oszwaldowski, Maciej. 2011. "Hall Sensors for Extreme Temperatures." Sensors 11, no. 1: 876-885.