A Multi-Channel Data Acquisition System for Capacitive Sensing. Issue 5 (June 2019)

• Record Type: Journal Article
• Authors: Li, Jianke; Zhao, Yanxia; Li, Jianfeng; Hu, Aihua; Wei, Ruoyan; Zhang, Changshui
• Is Part Of: Journal of physics. Volume 1213:Issue 5(2019)
• Publication Date: 2019-06
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1213/5/052102
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Capacitive sensing can be applied to a variety of applications. A multi-channel data acquisition system for capacitive sensing was designed based on an FDC2214 with external L-C resonators. The FDC2214 was used for capacitance-to-digital converting by measuring the ratio of the resonator frequency to a reference frequency. Employing MSP430F5529 as host processor and the two-wire I 2 C serial bus interface connected with the FDC2214, the system implemented multi-channel data acquisition. As a test system, an 8-channel physical hardware device was provided. Experiments for gesture recognition had been done using the 8-channel capacitive sensing data acquisition system. The good experimental results verified the availability of the designed system.