| 摘要 |
<p>A circuit including a magnetic sensing device for measuring magnetic fields is disclosed. The output of the magnetic sensing device is amplified by an amplifier and feedback to the magnetic sensing device. A potentiometer comprising two resistors R1 and R2 is connected between the output of the amplifier and ground. The feedback signal is taken from the common terminal of the two resistors. When circuit parameters are appropriately chosen, a magnetic field measuring circuit which is linearly responsive to changes in magnetic field intensity and relatively temperature independent results.</p> |
