Put simply, the heart of the regulator is a bimetallic strip with a coil of wire wrapped around it. When power from the battery is passed through the coil it acts as a heater, which makes the ...

Since the two metals comprising the spring had different thermal expansion coefficients, the metal strip would want to bend and contort from its original shape. As it did this, the bimetallic ...

forming an open grid bonded to the strip. After cooling, this bimetal is rolled to densify the liner alloy, then resintered to develop complete interparticle and alloy-to-steel bonds. After ...

But the twinkle effect until recently has been hard to describe. Typical flashing bulbs use a bimetallic strip. As the filament of the bulb heats up, the strip bends, opening the circuit.