EXTREMELY-LOW-FREQUENCY ELECTROMAGNETIC-WAVE FULL-DUPLEX MAGNETIC SENSING APPARATUS AND METHOD

• Main Authors: LIU, Jiarui, YANG, Yubing, YU, Xiaochen, AN, Lei, GENG, Wei, ZHANG, Chunguang, LI, Shangqing, SUN, Zhitao, LIU, Guangheng, CHU, Shuai, GONG, Yingjiao, LI, Zhichao, LIU, Jiahui
• Format: Patent
• Language: Chinese; English; French
• Published: 15.08.2024
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

An extremely-low-frequency electromagnetic-wave full-duplex magnetic sensing apparatus, comprising a controller, a first antenna module and a second antenna module. The first antenna module and the second antenna module each comprise an excitation unit, a mutual-inductance unit, a coil, a magnetic core and a shielding layer. The controller controls the first antenna module and the second antenna module to be in an asynchronous excitation state and an asynchronous mutual-inductance state, sequentially acquires data to be sent of the first antenna module and the second antenna module, performs phase shift delay on said data and then converts said data into asynchronous excitation signals, and sends the asynchronous excitation signals to the excitation unit of the first antenna module and the excitation unit of the second antenna module, such that asynchronous excitation current signals are generated, and the controller receives asynchronous sensing signals by means of the coil of the first antenna module and th