Hall Sensors for Extreme Temperatures

Sensors

Jakub Jankowski¹  Semir El-Ahmar¹ 

[1] Institute of Physics, Poznan University of Technology, Nieszawska 13a, 61-965 Poznan, Poland;

关键词: Hall sensors;    n-InSb/GaAs;    extreme temperatures;    magnetic sensors;   

DOI  :  10.3390/s110100876

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.