Definition: The word "anemometrographic" means "a device used to measure temperature with an electrometer." A thermometer is a device that measures the temperature through the use of a thermocouple, which is an element connected between two parts of a metal cylinder called a thermistor (the part directly in contact with the substance). The thermocouple contains a thermistate and a resistance element. When the thermistor contacts the ambient air or a cold gas, it generates a current proportional to the temperature difference. This means that the heat produced by the thermometer is converted into electrical energy, which can be measured as voltage or current based on the material of the thermocouple.