
The SB100 uses peltier thermoelectric modules to accomplish heating and cooling of the samples. The modules consist of two opposing ceramic surfaces connected by thermoelectric junctions. Electrically biasing the junctions causes heat to be moved from one ceramic surface to the other. By reversing the polarity of the bias, the direction of heat flow also can be reversed. Thus, it is possible to selectively heat or cool an object that is thermally connected to the ceramic surfaces of a peltier module.
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