Patent ID: 9404980
Filing Date: 2016-08-02
CPC Classification: G01R

Claim Text:
1. A magnetometer comprising: a detector part with a magnetosensitive material to the magnetic field and a coil surrounding its magnetosensitive material to pick up the magnetic field; a pulse generator circuit to supply the pulse current to the magnetic material; and a sample holding circuit comprising an electronic switch synchronized with pulse current timing for switching on/off and a holding capacitance to charge electricity produced by the pickup coil during the period of switch on, and an amplifier circuit to amplify the voltage of the holding capacitance, the magnetometer comprising the magnetosensitive material to the magnetic field is a soft magnetic alloy with amorphous state, the pulse current with the pulse converted frequency of 0.3 GHz to 3 GHz, the holding capacitance with the capacity of 10 pF to 100 pF, wherein the magnetometer equipping a Buffer circuit which connects the output side of the pickup coil with the input side of the Buffer circuit and connects the output side of the Buffer circuit with the input side of the electronic switch to transfer the pulse signal voltage induced in the pickup coil from the input side to the output side to keep the pulse signal voltage of the outside at the same level as that of the inside, and the magnetometer constituted by a magneto impedance sensor.