For the past few years, different types of control techniques are being used in various fields of industry. Fuzzy logic based control system is one of them. Fuzzy logic uses statements instead of mathematical model for solving a given problem. In this paper, a normal household washing machine, which is used very often, is modeled with the help of Fuzzy logic. Both the simulation and the control of the aforementioned device have been done by using MATLAB's fuzzy logic toolbox.
3D integrated microfluid devices are a group of engineered microelectromechanical systems (MEMS) whereby the feature size and operating range of the components are on a microscale. These devices or systems have the ability to detect, control, activate, and create macroscale effects. On this basis, microfluidic chips are systems that enable microliters and smaller volumes of fluids to be controlled and moved within microscale-sized (one-millionth of a meter) channels. While this small scale can be compared to microfluid chips of larger applications, such as pipes or plumbing practices, their small size is commonly useful in controlling and monitoring the flow of fluid. Through such applications, microfluidic chip technology has become a popular tool for analysis in biochemistry and bioengineering with their most recent uses for artificial organ production. For this purpose, microfluidic chips can be instantly controlled by the human body, such as pulse, blood flow, blood pressure, and transmitting data such as location and the programmed agents. Despite its vast uses, the production of microfluidic chips has been mostly dependent upon conventional practices that are costly and often time consuming. More recently, however, 3D printing technology has been incorporated in rapidly prototyping microfluid chips at microscale for major uses. This state-of-the-art review highlights the recent advancements in the field of 3D printing technology for the rapid fabrication, and therefore mass production, of the microfluid chips.
Background:
Alternative micro/nanofabrication methods are being investigated actively due to the cost, time
consumption and complexities involving in conventional MEMS fabrication practices.
Objective:
The majority of fabrication techniques are based on several strictly followed steps, thus demanding more
extended periods and attention.
Methods:
One of the fabrication techniques that emerged to address those issues mentioned above is called Two-Photon
Polymerization (2PP). In this work, 2PP based 3D printing technique has been utilized to perform the fabrication of an
electrothermal microactuator using support structure, and its operability has been illustrated via experiments.
Results:
The characterization results show a movement of 2.82 µm when a voltage of 5 to 7V is applied to the
microactuator. Any voltage above 7V causes the breakage in the actuator arms. Since it is a bidirectional actuator,
therefore, the total movement span is 5.64 µm.
Conclusion:
Finite Element Analysis (FEA) and Analytical analysis of the designed electrothermal structure were
performed before the fabrication process.
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