Tag: microscopic

Accelerometer tutorial - what is an accelerometer?

How an accelerometer works!

Have you ever wondered how your phone’s tilt sensing function works? It uses a device called an accelerometer. In this video I explain some basic concepts of MEMS (microelectromechanical systems) and show you some MEMS dies under a microscope. Then I explain how these tiny structures can be used to sense acceleration. Accelerometer math

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White LED under microscope

White LED under microscope

There are 3 dies on every white LED in this LED module.

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USB microscope

Cosview MV200UM USB microscope review

Cosview MV200UM USB microscope review. Review sample provided by Saelig: http://www.saelig.com/product/VI021.htm Stand: http://www.saelig.com/product/VA004.htm

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RGB LED

RGB LED under microscope

Clear shots of all 3 dies in an RGB LED.

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Green LED turns red

Green LED turns red!

Normally rated for 20mA. When 100mA is flowing it turns from green to yellow. At 150mA, it slowly and permanently turns yellowy-orange. At 200+mA it permanently turns red and soon fails.

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Blue 0603 LED

Blue 0603 LED under microscope

Random video. The colour changes a bit as the current gets turned up.

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