Calorimeter using phase temperature and method of constant temperature maintenance

摘要

PURPOSE: A calorimeter by using a phase shifting temperature and a constant temperature maintaining method are provided to improve precision in measurement of calorie though unifying a base temperature of the calorimeter by using phase shifting temperature of a pure material. CONSTITUTION: A constant temperature is maintained by using phase shifting temperature of a pure material(15). Herein, a device is formed by a constant temperature measuring chamber(11), a pure material store container(14), a heater(16), and an insulating unit(17). Power is supplied to the heater for heating the pure material. Then, the material is molten for maintaining temperature until completing melting performance. Then, a sample is placed on a sample container(12) of the constant temperature measuring chamber. Herein, a heat flow meter(18) in the constant temperature measuring chamber measures temperature of the chamber while using the temperature of the store container as a base temperature. Therefore, a small amount of calorie in the sample is measured.