Thermal analysis apparatus

A thermal analysis apparatus comprising:

• a heating furnace;
• a heater heating an inside of the heating furnace;
• a temperature detector measuring a temperature of the heating furnace inside;
• a temperature program setter which can set a temperature program making a temperature change, of the heating furnace inside, complying with an elapse of time and outputs a temperature program signal;
• a temperature control section adjusting a supply electric power to the heater in compliance with a difference between the temperature program signal and a detection signal of the temperature detector;
• a processor section calculating a cooling gas flow rate corresponding to a programmed temperature of the temperature program;
• and
• a cooling gas flow rate adjustment section which is connected to the temperature program setter through the processor section, and adjusts a cooling gas flow rate supplied to the heating furnace inside in compliance with a signal of the cooling gas flow rate calculated by the processor section,
• wherein in the processor section, operation expressions calculating the cooling gas flow rate are set so as to differ respectively in a higher temperature side and a lower temperature side than a predetermined boundary temperature, and the cooling gas flow rate calculated by the operation expression in the higher temperature side is made a degree that does not damage the heating furnace;
• wherein the temperature program set by the program setter comprises:
• a first operation expression on the higher temperature side;
• a second operation expression on the lower temperature side, and
• wherein cooling gas flow rate curves found from each of the first operation expression and the second operation expression are connected by another cooling gas flow rate curve found from a third operation expression such that the entire cooling gas flow curves maintain continuity.