Glass is a perfect choice in many applications. One of them is micromechanics. Femtika team demonstrated a compliant mechanism called a bistable switch. It is wholly made out of fused silica glass using selective laser-assisted etching (SLE) technique. The mechanism moves due to elastic deformations of 20 µm thickness arms. A bistable switch has two stable positions which could be switched by actuating it with a needle. The total size of the structure is 5 x 9 mm.
Some specific examples of applications for bistable switches:
- Level control: Bistable switches can be used to control the level of liquid or solid materials in a tank or container. For example, a bistable switch can be used to turn on a pump when the liquid level in a tank is low, and turn off the pump when the liquid level is high.
- Security systems: Bistable switches can be used in security systems to detect intruders or other security breaches. For example, a bistable switch can be used to detect when a door or window is opened.
- Medical devices: Bistable switches can be used in medical devices to control the flow of fluids or gases. For example, a bistable switch can be used to control the flow of oxygen to a patient.
- Transportation: Bistable switches can be used in transportation systems to control the movement of vehicles and other equipment. For example, a bistable switch can be used to control the opening and closing of a railway crossing gate.
Bistable switches are a versatile and reliable type of switch that can be used in a wide variety of applications. They are an essential component in many modern electronic systems.
Femtosecond microfabrication in micromechanics applications uses techniques like multiphoton polymerization and selective laser etching to produce flexible and high-precision 3D structures. These structures, made of materials like polymers and ceramics, can be used in various fields like micromechanics and microrobotics and are ideal for applications that require movable assembly-free components.
A feasibility study is composed of several steps, including researching methods for fabricating micro-structures, fabricating a micro-structure prototype, measuring and aligning the prototype with technical requirements, and finally preparing a study report.