Detect threshold

A sensor’s negative (detect) threshold defines how much its signal must drop below its reference level to qualify as a potential touch detect. The final detection confirmation must however satisfy the Detect Integrator (DI) limit. Larger threshold values desensitize sensors since the signal must change more (i.e. requires larger touch) in order to exceed the threshold level. Conversely, lower threshold levels make sensors more sensitive.

Threshold setting depends on the amount of signal swing that occurs when a sensor is touched. Thicker front panels or smaller electrodes usually have smaller signal swing on touch, thus require lower threshold levels.