Theoretical and experimental researches on magnetic fluid acceleration sensor

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part I

Article type: Research Article

Authors: Yang, Wenrong^{a; *} | Yang, Qingxin^a | Yan, Rongge^a | Liu, Suzhen^a | Yan, Weili^a

Affiliations: [a] Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, 300130 Tianjin, China

Correspondence: [*] Corresponding author. Tel.: +86 22 60201734; Fax: +86 22 26564419; E-mail: [email protected]

Abstract: A kind of magnetic fluid acceleration sensor (MFAS) is presented in the paper, which is using the magnetic and fluid characteristic of magnetic fluid. First, the output characteristics of MFAS and its static sensitivity are analyzed based on minimum potential energy principle, the result indicates the linear relationship between output voltage and acceleration. Then, the experimental research is carried out and compared with piezoelectric acceleration sensor simultaneity based on ZJY-601A experiment platform. The output signal of MFAS is sampled and processed by the signal processing system, the output waveform demonstrate that the experimental results are both in agreement with theoretical analysis and output of piezoelectric acceleration sensor. Finally, system errors and influencing factors on measurement sensitivity are analyzed qualitative.

Keywords: Magnetic fluid, acceleration sensor, dynamic response, permanent magnet

DOI: 10.3233/JAE-2010-1170

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 1-2, pp. 655-663, 2010