| 摘要 |
PURPOSE:To prevent disturbance caused by noises to the detection of magnetic bubbles, by making an arrangement that detect signals are fetched after resistances having the same resistance value are connected to the detector for magnetic bubble detection and detector for noise offset in series. CONSTITUTION:A magnetic bubble storage element MB is equipped with driving coils X and Y which produce a rotating magnetic field for driving the magnetic bubble, a detector D1 for magnetic bubble detection, and detector D2 for noise offset. Floating capacities C1 and C2 exist between the coil X and detector D1 and coil Y and detector D2, respectively. A terminal 6 from the detector D1 is earthed through a resistance R1 and detection voltages V1 and V2 generated from the detectors by electrostatically induced noises are offset and, moreover, a resistance R2 (R2=R1) is installed to a terminal 7 and the impedance of the two detectors is balanced. Therefore, disturbance caused by noises generated in the element to the magnetic bubble detection can be prevented. |
