| 摘要 |
PURPOSE:To obtain a sensor which is excellent in high sensitivity, high speed responsiveness, temperature characteristic and shock resistance, and has a linearity by combining a DC output type magnetic multivibrator using a shared magnetic core of an amorphous ferromagnetic material wire, and a magnet. CONSTITUTION:When a multivibrator of a high sensitivity is constituted of two pieces of separated winding parts C1, C2 using an amorphous ferromagnetic material wire W having a high speed response characteristic as a magnetic core, and a dummy resistance RL, through switching transistors T1, T2, its thermal balance is good and a high accuracy is obtained. The winding part C1 and C2 are wounded in the direction for offsetting a uniform disturbance magnetic field, and detects a difference between an impressed magnetic field strength H1 and H2. Accordingly, by a displacement X of a magnet M interlocking with an object, the magnetic field strength H1 and H2 is varied, therefore, a displacement of the object is converted to a variation of the magnetic field strength, and can be detected as a DC output Eout.
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