Air Gap between Capsense Sensor and an Overlay
Anonymous
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Jun 18, 2010
12:03 AM
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Jun 18, 2010
12:03 AM
Question: Can there be an air gap between a Capsense sensor and an Overlay?
Answer:
Capsense is not recommended to have any air gap between Capactitve Sensor PCB and an Overlay material.
If the requirement demands an air gap, you may connect a spring between the capsense button and the overlay, this should enable to detect it as a button with better sensitivity.
You may also refer an application note "Using Springs as CapSense Sensors AN44999"
This application note considers the possibility of using springs as sensors. A comparison with solid conductive sensors and recommendations for the practical usage of springs are also discussed.
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