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2. Radio-frequency microelectromechanical system - Wikipedia

   en.wikipedia.org/wiki/Radio-frequency_micro...

   A radio-frequency microelectromechanical system (RF MEMS) is a microelectromechanical system with electronic components comprising moving sub-millimeter-sized parts that provide radio-frequency (RF) functionality. [1] RF functionality can be implemented using a variety of RF technologies.

3. Electret microphone - Wikipedia

   en.wikipedia.org/wiki/Electret_microphone

   An electret microphone is a microphone whose diaphragm forms a capacitor (historically-termed a condenser) that incorporates an electret. The electret's permanent electric dipole provides a constant charge Q on the capacitor. Sound waves move the diaphragm, changing the capacitance C, which produces a corresponding voltage change across the ...

4. List of MEMS foundries - Wikipedia

   en.wikipedia.org/wiki/List_of_MEMS_foundries

   MEMS (including accelerometers, gyroscopes, digital compasses, inertial modules, pressure sensors, humidity sensors and microphones) Silicon High volume production IDM Switzerland: Teledyne DALSA: MEMS design and manufacturing with integration of individual foundry processes Silicon and polysilicon High volume production 6, 8 Pure-play Canada

5. Microphone - Wikipedia

   en.wikipedia.org/wiki/Microphone

   MEMS microphone Akustica AKU230. The MEMS (microelectromechanical systems) microphone is also called a microphone chip or silicon microphone. A pressure-sensitive diaphragm is etched directly into a silicon wafer by MEMS processing techniques and is usually accompanied with an integrated preamplifier. [36] Most MEMS microphones are variants of ...

6. Microelectromechanical system oscillator - Wikipedia

   en.wikipedia.org/wiki/Microelectromechanical...

   Microelectromechanical system oscillators (MEMS oscillators) are devices that generate highly stable reference frequencies used to sequence electronic systems, manage data transfer, define radio frequencies, and measure elapsed time. The core technologies used in MEMS oscillators have been in development since the mid-1960s, but have only been ...

7. Download, install, or uninstall AOL Desktop Gold - AOL Help

   help.aol.com/articles/aol-desktop-downloading...

   Download Desktop Gold. AOL Desktop Gold is included at no additional cost with your membership. 2. Under 'All Products' scroll to 'AOL Desktop Gold'. If you have an AOL Desktop Gold trial or subscription. Using the link in the Official AOL signup confirmation email you received. 1.

8. Sound pressure - Wikipedia

   en.wikipedia.org/wiki/Sound_pressure

   While 1 atm (194 dB peak or 191 dB SPL) [11] [12] is the largest pressure variation an undistorted sound wave can have in Earth's atmosphere (i. e., if the thermodynamic properties of the air are disregarded; in reality, the sound waves become progressively non-linear starting over 150 dB), larger sound waves can be present in other atmospheres ...

9. MEMS - Wikipedia

   en.wikipedia.org/wiki/MEMS

   MEMS microcantilever resonating inside a scanning electron microscope. Proposal submitted to DARPA in 1986 first introducing the term "microelectromechanical systems". MEMS (micro-electromechanical systems) is the technology of microscopic devices incorporating both electronic and moving parts. MEMS are made up of components between 1 and 100 ...