All-band magnetic sensor

US11650268B2 · kind B2 · utility

Assignee

• Institute of Geology and Geophysics, Chinese Academy of Sciences · CN

Inventors

• Qingyun Di · Beijing, CN
• Qihui Zhen · Beijing, CN
• Tianxin Zhang · Beijing, CN
• Yuliang Wang · Nanhu, CN
• Zhiyao Liu · Longbeilingcun, CN
• Quanmin Yang · Beijing, CN

Key dates

• Filing date: Dec 2, 2020
• Grant date: May 16, 2023
• Expiry date: Jul 16, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F27/28
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An all-band magnetic sensor is provided. The all-band magnetic sensor comprises an induction coil, a voltage measurement module, and an integrator; the induction coil is used for generating an induced electromotive force according to magnetic flux passing therethrough; an impedance transformation circuit is connected to the output end of the induction coil and used for improving the loop resistance of the induction coil; the voltage measurement module is electrically connected to the impedance transformation circuit, and used for measuring the induced electromotive force generated by the induction coil; and the integrator is electrically connected to the voltage measurement module, and used for expanding a bandwidth.