Patent ID: 6953280
Filing Date: 2005-10-11
Classification: G01K,G01N

Abstract:
1. A calorimeter comprising: a reactor; an interior thermostat including a compensation heater and a first temperature sensor in said reactor, said interior thermostat further including a temperature regulator connected to said first temperature sensor for receiving a temperature indication from said first temperature sensor, an output meter connected to said compensation heater for supplying power thereto and a signal line connecting said temperature regulator to said output meter for supplying a control signal from said temperature regulator to said output meter; an intermediate thermostat having, as a heat carrier, a metal block into which said reactor is built, a second temperature sensor embedded in said metal block for measuring the temperature of said metal block and a temperature regulator connected to receive a temperature indication from said second temperature sensor, said intermediate thermostat further having a power output device connected to said temperature regulator, and a heating and/or cooling element connected to said temperature regulator, the temperature of said metal block being regulated by the heating and/or cooling element and the energy required from said heating and/or cooling element for the regulation being recorded and entering into the heat flow balance of the calorimeter as heat flow; and an external thermostat with which said intermediate thermostat cooperates, wherein, in said interior thermostat, the temperature of a test substance in said reactor is measured by said first temperature sensor and regulated by said compensation heater, wherein a heat input from said compensation heater enters into the heat flow balance of the calorimeter as heat flow.