Scanning measurement of magnetorheological fluid sedimentation process via laser transmission intensity method
ID:21 Submission ID:47 View Protection:ATTENDEE Updated Time:2023-03-14 09:18:57 Hits:478 Oral Presentation

Start Time:2023-06-10 11:10 (Asia/Shanghai)

Duration:15min

Session:[S1] Concurrent Session 1 » [S1-4] Concurrent Session 1-4

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Abstract
The sedimentation measurement is of significant importance when designing and synthesizing magnetorheological (MR) fluid for engineering applications. Generally, visual observation is always used to discern the mudline position but knows nothing about the concentration distribution under the mudline. The method using electromagnetic scanning is limited by the position resolution because of the height of the inductor, and the method based on thermal conductivity is time-consuming and determines the sedimentation status at a specific location.
In this paper, the sedimentation behavior is revealed by the laser transmission intensity (LTI) method which is based on scattering when the light passing through the MR fluid, the higher the concentration and the stronger the scattering, the weaker the received light intensity. Specifically, the laser diode and the photodiode were utilized as the light source and receiver, respectively.
MR fluid samples in a series of concentrations are used to obtain the correlation between volume fraction and photodiode output voltage, and that is taken as the calibration of the sensing method. In the experiments, the scanning with height and the sensing with time are jointly employed to characterize the settling process of a specific MR fluid.
 
Keywords
Transmission intensity, MR fluid, Scanning, Sedimentation
Speaker
Zhiyuan Zou

Submission Author
Zhiyuan Zou The Key Laboratory of Optoelectronic Technology and Systems (Chongqing University), Ministry of Education, Chongqing, 400044, China
Honghui Zhang The Key Laboratory of Optoelectronic Technology and Systems (Chongqing University), Ministry of Education, Chongqing, 400044, China
Minghui Zhu The Key Laboratory of Optoelectronic Technology and Systems (Chongqing University), Ministry of Education, Chongqing, 400044, China
Kexun Pan The Key Laboratory of Optoelectronic Technology and Systems (Chongqing University), Ministry of Education, Chongqing, 400044, China
Ning Wang 1. The Key Laboratory of Opto-electronics Technology and Systems, Ministry of Education, Chongqing University, Chongqing, P.R.C
Dengyou Zhang Chongqing Materials Research Institute Company Limited
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