title: Integrated active sensor system for real time vibration monitoring.
abstract: We report a self-powered, lightweight and cost-effective active sensor system for vibration monitoring with multiplexed operation based on contact electrification between sensor and detected objects. The as-fabricated sensor matrix is capable of monitoring and mapping the vibration state of large amounts of units. The monitoring contents include: on-off state, vibration frequency and vibration amplitude of each unit. The active sensor system delivers a detection range of 0-60 Hz, high accuracy (relative error below 0.42%), long-term stability (10000 cycles). On the time dimension, the sensor can provide the vibration process memory by recording the outputs of the sensor system in an extend period of time. Besides, the developed sensor system can realize detection under contact mode and non-contact mode. Its high performance is not sensitive to the shape or the conductivity of the detected object. With these features, the active sensor system has great potential in automatic control, remote operation, surveillance and security systems.
authors.affiliation: State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of science and technology Beijing, Beijing, 100083, China.
authors.forename: Qijie
authors.initials: Q
authors.lastname: Liang
authors.affiliation: State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of science and technology Beijing, Beijing, 100083, China.
authors.forename: Xiaoqin
authors.initials: X
authors.lastname: Yan
authors.affiliation: State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of science and technology Beijing, Beijing, 100083, China.
authors.forename: Xinqin
authors.initials: X
authors.lastname: Liao
authors.affiliation: State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of science and technology Beijing, Beijing, 100083, China.
authors.forename: Shiyao
authors.initials: S
authors.lastname: Cao
authors.affiliation: State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of science and technology Beijing, Beijing, 100083, China.
authors.forename: Shengnan
authors.initials: S
authors.lastname: Lu
authors.affiliation: State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of science and technology Beijing, Beijing, 100083, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Zheng
authors.affiliation: State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of science and technology Beijing, Beijing, 100083, China.|Key Laboratory of New Energy Materials and Technologies, University of Science and Technology Beijing, Beijing, 100083, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhang