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Microscopic view of the CDOE gratings
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- Title Microscopic view of the CDOE gratings
- Released 01/04/2010 10:40 am
- Copyright GasSecure
Scanning Electron Microscope view of the moveable gratings used in the CDOE filter. The 0.5 cm sq CDOE area consists of hundreds of microgratings with a reflective aluminium covering, each one measuring 50 µm by 500 µm. Every second micrograting moves when a voltage is applied due to electrostatic attraction, springing back when the voltage is switched off. They move less than one micrometre (µm), which is one thousandth of a millimetre or a hundredth of a hair’s diameter.