Pulse-heated, thermoelectric flow measurement device for living tissue

摘要

A flow measurement device for determining the flow rate in living tissue, e.g. in blood vessels, uses the cooling constant of a pulse-heated thermoelectric sensor to determine the flow rate. Moreover, the temperature jumps of the sensor are kept constant by controlling the heating pulses. The cooling constant is determined from the time interval between two temperature transitions of the cooling constant in each case.