Among the latest scientific inventions of great importance to us in our daily lives are devices known as MEMS. Microelectromechanical systems (MEMS) are the technology of the very small. In Japan MEMS are also called micromachines. Smaller still, are the nano-scale nanoelectromechanical systems (NEMS) and nanotechnology.
MEMS are made up of components between 1 to 100 micrometers in size (i.e. 0.001 to 0.1 mm) and MEMS devices generally range in size from 20 micrometers (20 millionths of a meter) to a millimeter. MEMS became practical once they could be fabricated using modified semiconductor fabrication
One type of invention impacting our lives is the accelerometer. An accelerometer measures the acceleration and gravity it experiences. Modern accelerometers are often small micro electro-mechanical systems (MEMS), and are indeed the simplest MEMS devices possible, consisting of little more than a cantilever beam with a proof mass. Under the influence of gravity or acceleration the proof mass deflects from its neutral position. This deflection is measured in an analog or digital manner. This method is simple and reliable; it also does not require additional process steps making it inexpensive.
Micromechanical accelerometers are available in a wide variety of measuring ranges, reaching up to thousands of g’s. These amazing little devices are what allow us to take for granted the most commonplace things in our lives, while benefiting from them immensely.
For instance, these latest of scientific devices tell our air bags when to deploy. Do you feel that we benefit from our airbag
Another area where MEMS are popping up is in pressure sensors. MEMS
These latest scientific inventions can be used for sensing altitude for use in aircraft, rockets, satellites, weather balloons etc. And finally, they can be use for flow sensing. MEMS
I’ve barely touched upon the latest scientific inventions in the MEMS field, just think of the military and battlefield uses for such a
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