A method to determine the low frequency behavior of thermal converters

A method to determine the low frequency behaviour of thermal converters using a resistor as standard is described. The method has been used to determine the AC-DC transfer difference of multijunction thermal converters and planar multijunction thermal converters in the frequency range 10 Hz to 400 Hz. The results of a comparison agree with predicted values within /spl plusmn/0.5-10/sup -6/.