Research on Magnetic Coupling Resonant Dual-Channel Oil Abrasive Grain Detection Sensor Based on Relay Transmission. - Shukui Hu; Zuo Zhang 004; Yucai Xie; Feng Gu; Hui Zhang 104; Chenyong Wang; Chenzhao Bai; Hong Peng Zhang (IEEE Trans. Instrum. Meas., 2025)