Electrical button has measuring portion formed from material of electrically conducting metallic particles arranged electrically isolated/electrically conductively interconnected from each other at different temperatures

摘要

The electrical button (10) has measuring portion (11) formed from materials (1,2) of different thermal expansion coefficients. The material (2) has electrically conducting metallic particles (3). The material (1) has electrically non-conductive silicone particles. The particles (3) is arranged in material (1) serving as substrate. The particles (3) of material (2) are arranged electrically isolated/electrically conductively interconnected from each other at different temperatures. The electrodes (13,14) set the electrical connection state of particles (3) of material (2).