Can magnetic technology be replaced by piezo technology ?
Although piezo technology is widely used, it cannot fully replace magnetic technology. There are many instances where the objects in the system cannot be placed near each other. In order for it to work, piezo technology requires contact between the objects in the system. On the other hand, magnetic technology works even when the objects are far from each other.
Even though magnetic technology is generally more useful than piezo technology, there are instances where using piezo technology is a better option. In choosing between solenoid and piezo actuators, piezo actuators are a better option if the goal is to conserve power. But if power consumption is not a consideration, solenoid actuators may be chosen because they are lighter and less bulky that piezo actuators.
The use of piezoceramics in cancelling vibrations
To cancel vibrations, two sheets of piezoceramics are used. These sheets are attached to the surface of the object where vibration is to be cancelled. The sheets have to be attached closely together. The first piezoceramic sheet detects the vibration. The detected vibration is sent to a smart box. The smart box is used to control an amplifier. This amplifier acts on the second sheet. When the second sheet vibrates, these vibrations have the same level and opposite direction of the vibrations of the object. This cancels the initial vibrations.
What commonly used devices use piezoelectricity ?
Many devices that are used daily by lots of people use piezoelectricity. Even you most probably use a piezo device in your everyday life. Items such as cigarette lighters, watches, smoke detectors, gas grills, and radios use piezoelectricity.
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