http://kb.linuxvirtualserver.org/api.php?action=feedcontributions&feedformat=atom&user=ReggiKunz697 2026-04-04T09:47:33Z User contributions MediaWiki 1.26.2 http://kb.linuxvirtualserver.org/wiki?title=User:ReggiKunz697&diff=25319 2012-05-10T05:20:10Z

<p>ReggiKunz697: New page: The [http://evan2012yu.wordpress.com/2012/05/09/knowledge-about-piezo-buzzer-china/ piezo buzzer] use piezoelectric ceramic piezoelectric effect to drive the vibration of the metal to mak...</p> <hr /> <div>The [http://evan2012yu.wordpress.com/2012/05/09/knowledge-about-piezo-buzzer-china/ piezo buzzer] use piezoelectric ceramic piezoelectric effect to drive the vibration of the metal to make voice.<br /> Electromagnetic buzzer use the principle of electromagnetic,metal diaphragm will be sucked under power .while under no power,it use the elasticity of diaphragm to rebound, so the piezo buzzer use the square wave to drive, electromagnetic is 1/2 square wave driver.</div>

ReggiKunz697 http://kb.linuxvirtualserver.org/wiki?title=ReggiKunz697&diff=25318 2012-05-10T05:19:50Z

<p>ReggiKunz697: New page: The [http://evan2012yu.wordpress.com/2012/05/09/knowledge-about-piezo-buzzer-china/ piezo buzzer] use piezoelectric ceramic piezoelectric effect to drive the vibration of the metal to mak...</p> <hr /> <div>The [http://evan2012yu.wordpress.com/2012/05/09/knowledge-about-piezo-buzzer-china/ piezo buzzer] use piezoelectric ceramic piezoelectric effect to drive the vibration of the metal to make voice.<br /> Electromagnetic buzzer use the principle of electromagnetic,metal diaphragm will be sucked under power .while under no power,it use the elasticity of diaphragm to rebound, so the piezo buzzer use the square wave to drive, electromagnetic is 1/2 square wave driver.</div>

ReggiKunz697