In Microvalve Which Actuation Technique Is Used?

Traditionally, (1) mechanical active microvalves are accomplished using the MEMS-based bulk or surface micromachining technologies, where mechanically movable membranes are coupled to magnetic, electric, piezoelectric or thermal actuation methods.

What is a microfluidic valve?

Microfluidic valves control the flow of neutral and aggressive liquids and gases in analytical and medical devices. View Products. Control Units. Electronic control units use pulse-width modulation to regulate flow, pressure, temperature ​​​​​​​and force of proportional valves.

What is passive valve?

A passive valve is an alternative solution for effective flow control in a microfluidic system, and it usually relies on a microchannel structure or natural effect to regulate the flow rate. As a complex actuator is not required, a passive valve can be employed for low-cost and portable microfluidic applications.