How Cutouts, Edges, and Openings Affect a PI Heater Layout

https://glass-heating-technology.fotosdefrases.com/custom-mica-heater-shapes-for-challenging-equipment-designs

In sensors, a pi heater must deliver heat in a controlled way. It uses a thin resistive foil circuit laminated in polyimide film. One useful trait is fast response. Still, local hot spots can change the result