LIU Xuling and LI Songjing. Design and characterization study on PDMS electromagnetic microvalve for pneumatic lab-on-a-chip[J]. Journal of Light Industry, 2018, 33(4): 57-65. doi: 10.3969/j.issn.2096-1553.2018.04.008
Citation:
LIU Xuling and LI Songjing. Design and characterization study on PDMS electromagnetic microvalve for pneumatic lab-on-a-chip[J]. Journal of Light Industry, 2018, 33(4): 57-65.
doi:
10.3969/j.issn.2096-1553.2018.04.008
Design and characterization study on PDMS electromagnetic microvalve for pneumatic lab-on-a-chip
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College of Mechanical and Electronic Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
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School of Mechanical and Electronic Engineering, Harbin Institute of Technology, Harbin 150001, China
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Corresponding author:
LI Songjing,
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Received Date:
2017-03-16
Accepted Date:
2017-12-22
Available Online:
2018-07-15
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Abstract
Inview of the complicated structure and the large size of the regular electromagnetic valve and valve block and the difficulty in their integration with micro-fluidic chip, a new type of the electromagnetic microvalve was designed using PDMS, a new type of valve body.The numerical simulation of the static and dynamic flow rate characteristics of the electromagnetic microvalves with different valve-openings was made by Fluent software with UDF function under typical driving pressure.And experiment was made on the flow characteristics of electromagnetic microvalves under On-Off model and PWM model. The results showed that under the same driving pressure, electromagnetic valve flow was proportional to its pressure difference; under the same pressure difference, the average flow of electromagnetic valve was inversely proportional to its driving frequency and its opening flow was proportional to its duty cycle. The designed electromagnetic microvalve had high flow control precision, low cost of encapsulation and could improve the integration and control of pneumatic micro-fluidic chip.
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Proportional views
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