Capacitive stylus
Capacitive (also called passive) styluses emulate a finger by using a tip made of rubber or conductive foam, or metal such as copper. They do not need to be powered and can be used on any multi-touch surface that a finger can be used, typically capacitive screens that are common in smart phones and tablet computers. Stylus tips made of rubber or foam are often large, so it’s difficult to get precise notes or drawings.
Capacitive styluses work by distorting the screen’s electrostatic field.[1] Screens that receive input from a capacitive stylus (as well as human fingers) can't register pressure applied by the pen; tilting of the pen; and can't distinguish between a capacitive stylus, your finger, or a resting palm as input – it will register all of these touches as marks on the screen.
Construction
Capacitive styluses are made of a conductive material (typically a metal rod or barrel) to transmit electrical charge between your hand and a rubber/foam[2] or metal tip such as copper. Being free of any digital components, capacitive styluses can be cost effective to manufacture. DIY capacitive styluses can also be made with materials found at home[3]
Compatibility with devices
Capacitive styluses tend to work on any multi-touch surface that accepts input from a finger.
See also
References
- ↑ Kazmeyer, Milton (September 28, 2018). "How Does a Stylus Pen Work?". Techwalla. Retrieved June 1, 2020. Unknown parameter
|url-status=ignored (help) - ↑ "The Science Behind Capacitive Styluses". Nelson-Miller, Inc. 2019-07-15. Retrieved 2020-06-01.
- ↑ Bell, Donald. "How to make a capacitive stylus (photos)". CNET. Retrieved 2020-06-01.
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