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- http://www.analog.com/en/analog-to-digital-converters/capacitance-to-digital-converters/ad7142/products/product.html AD7142, PROGRAMMABLE CONTROLLER FOR CAPACITANCE TOUCH SENSORS
- http://www.analog.com/static/imported-files/data_sheets/AD7142.pdf AD7142 datasheet
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What all are the materials that can be used for implementing capacitive sensors?
Every Capacitive sensor material have to be conductive. It doesn't really matter from what material sensor is made, so long it's conductive. Common conductor capacitive sensing materials include copper, ITO(Indium tin oxide), and silver ink. The resistance is also a big factor when choosing the correct material. ITO for example has a high resistance, which might need a PreScaler, which is used to slow down frequency in the CSD User Module for Capsense to facilitate optimum performance.
Sources
2010, Materials used for capacitive sensing http://www.cypress.com/?id=4&rID=36843
Acoustic camera
What is acoustic camera?
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