C3.2 - Compact Read-Out Electronics for a Micromachined Thermal Conductivity and Diffusivity Sensor

Bernhard Mayrhofer, Bernhard Jakoby & Jochen Kuntner
There are several classical methods for measuring the thermal conductivity of liquids One of them is the hot wire method, where a heating wire is embedded in the liquid being sensed. A temperature element beside the heater is used to detect the heat emitted by the heater. Altematively, the heating wire itself may be used as a temperature sensor in the conventional hot wire method, the heater is powered by a DC source and the...