Microfluidic inertial switch based on J-shape communicating vessels

Li, Jiajie; Nie, Weirong; Liu, Guowei

doi:10.1007/s00542-018-4030-z

Cited by 4 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This microfluidic switch has simple preparation technology and high reliability, but the working temperature range of glycerol is narrow (−17.8 °C-290 °C). Liu et al [86], Yoo et al [5], Li et al [7] also designed micro-fluid inertial switches based on the principle of inertial flow. They used mercury or an ultra-low temperature conductive fluid as working fluids.…”

Section: Passive Inertial Switchesmentioning

confidence: 99%

“…The extension of contact duration can be achieved by decreasing the stiffness of electrodes; utilizing latching mechanisms including mechanical self-locking, a bistable mechanism and a wedge-shaped channel, etc. [4][5][6][7][8]74,77,80]. The contact resistance can be reduced by using the contact materials with low resistivity [13,57] and increasing the contact force [80,165].…”

Section: The Development Trend Of Mems Switchesmentioning

confidence: 99%

“…The rise of MEMS switches provides strong technical support for the development of signal control systems. At present, the demand for MEMS switches mainly comes from military security systems [4][5][6][7], the automobile industry [8,9], the wireless communication field [10][11][12][13][14][15], medical apparatus and instruments [9,16], micro-optical electromechanical systems (MOEMS) [17][18][19] and more. Over the last few decades, various types of MEMS switches have been developed.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Research Status and Development Trend of MEMS Switches: A Review

Cao

Zhao

2020

Micromachines

View full text Add to dashboard Cite

MEMS switch is a movable device manufactured by means of semiconductor technology, possessing many incomparable advantages such as a small volume, low power consumption, high integration, etc. This paper reviews recent research of MEMS switches, pointing out the important performance indexes and systematically summarizing the classification according to driving principles. Then, a comparative study of current MEMS switches stressing their strengths and drawbacks is presented, based on performance requirements such as driven voltage, power consumption, and reliability. The efforts of teams to optimize MEMS switches are introduced and the applications of switches with different driving principles are also briefly reviewed. Furthermore, the development trend of MEMS switch and the research gaps are discussed. Finally, a summary and forecast about MEMS switches is given with the aim of providing a reference for future research in this domain.

show abstract

Section: Passive Inertial Switchesmentioning

confidence: 99%

Section: The Development Trend Of Mems Switchesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research Status and Development Trend of MEMS Switches: A Review

Cao

Zhao

2020

Micromachines

View full text Add to dashboard Cite

show abstract

“…Therefore, how to achieve high threshold and anti-high overload using liquid with low surface tension is a challenging work at the moment. Therefore, to solve the above problems, we explore the design method of microfluidics inertial switch in high overload environment [24], and the structure and principle analysis of a U-type microfluidic inertial switch has been studied before [25]. The three-dimensional structure including glass cover-plate, PDMS substrate, contact electrode, U-type microchannel, and the sensitive electrode (salt solution) and the test device which is integrated into the microcircuit board are shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Study on Electrical Performance of a U-Type Microfluidic Acceleration Switch Using Salt Solution as the Sensitive Electrode

Shen

Chen

Chang

et al. 2020

Sensors

View full text Add to dashboard Cite

The threshold of microfluidic inertial switch is excessively dependent on the size of the passive valve structure and the gas–liquid surface energy of working liquid. How to achieve high threshold and anti-high overload using liquid with low viscosity and low surface tension is a challenging work. Based on the designed U-type microfluidic inertial switch, the electrical characteristic of salt solution at microscale as well as the threshold and dynamic electrical performance of switch were studied. The VOF and CSD modules in CFD software were employed to analyze the dynamic flow process, and then the air–liquid surface moving displacement curve was compared by the theoretical model. A self-designed acceleration test platform was utilized to measure the static threshold, dynamic threshold, and anti-high overload of the inertial switch. The results show that the U-type microfluidics inertial switch using salt solution as sensitive electrode has better performance in power connection and anti-high overload. In particular, it also has the ability to achieve a range of dynamic threshold by changing the placement of the contact electrode, which can achieve rapid power on and off.

show abstract

Dynamic flow characteristics in U-type anti-high overload microfluidic inertial switch

Shen

Huang

et al. 2019

Microfluid Nanofluid

View full text Add to dashboard Cite

Microfluidic inertial switch based on J-shape communicating vessels

Cited by 4 publications

References 12 publications

Research Status and Development Trend of MEMS Switches: A Review

Research Status and Development Trend of MEMS Switches: A Review

Study on Electrical Performance of a U-Type Microfluidic Acceleration Switch Using Salt Solution as the Sensitive Electrode

Dynamic flow characteristics in U-type anti-high overload microfluidic inertial switch

Contact Info

Product

Resources

About