Title :
High accuracy analog Hall probe
Author :
Schott, Christian ; Blanchard, H. ; Popovic, Radivoje S.
Author_Institution :
Inst. of Microsyst., Swiss Federal Inst. of Technol., Lausanne, Switzerland
Abstract :
The Hall probe we developed is a miniaturized analog system, consisting of two silicon vertical Hall devices, current stabilizers, amplifiers and error-correcting circuits. The output signal is 1 V/T, with an error less than 10/sup -4/ in the ranges /spl plusmn/2 T, 15/spl deg/C to 35/spl deg/C, and DC to 10 kHz. The probe features high long-term stability, low offset drift and low noise.
Keywords :
Hall effect transducers; analogue processing circuits; elemental semiconductors; magnetometers; probes; silicon; stability; 0 to 10 kHz; 15 to 35 C; Si; Si vertical Hall devices; amplifiers; analog Hall probe; current stabilizers; error-correcting circuits; long-term stability; low noise; low offset drift; miniaturized analog system; output signal; Circuits; Hall effect devices; Magnetic materials; Magnetic noise; Magnetic separation; Magnetometers; Probes; Semiconductor device noise; Silicon; Temperature sensors;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.546543
