Introduce a high-precision

low-cost digital Tesla meter system architecture. The instrument is designed with high stability constant current source driver In As Hall sensors

using auto-zero

low noise amplifiers for signal pickup

amplification

conditioning

adaptive adjust magnification times

obtained voltage analog signal converts to digital signal by A / D conversion（ ADC）

then using curve fitting techniques for data correction

thus ensure entire range of high precision and high resolution. Testing and using prove that the instrument is stable

reliable and has high precision.