| 摘要 |
<p>A magnetic correction circuit is provided with a magnetic sensor (1), a control circuit (2) which generates a signal for magnetic correction, and a coil (3) for magnetic correction. The sensor (1) is provided with a pair of amorphous magnetic wires (101) arranged in parallel with each other, coils (102) which respectively impress bias magnetic fields in the opposite directions upon the wires (101), high-frequency power source (105) which supplies a high-frequency current to the wires (101), and circuits (106, 107, 108, and 109) for outputting the difference between the voltages at the output terminals of the wires (101). The magnetic correction circuit can detect even a very weak external magnetic field with a good accuracy.</p> |
