DSC
DSC 6200
The DSC series measurement chambers are designed for heat flux DSC measurements. The temperature of the high conductance heat sink is accurately controlled by the heater via commands from the temperature program. The heat sink temperature is conducted from the heat conducting surface through the thermal resistance material into the sample and reference holders and containers. This increases, or decreases, the temperature of the sample and reference.
The heat flow passing through the thermal resistance material is proportional to the temperature difference, between the heat conducting surface on one end and the sample holder on the other end. The specially designed heat sink is accurately controlled to maintain a uniform temperature at the heat conducting surface. Therefore, the measured difference in heat flow through the sample holder and reference holder is proportional to the sample and reference temperature differences. In this way, a heat flux type DSCdetects the temperature difference signal and outputs it as a DSCsignal. The samples used are Tin and Indium in order to calculate their specific heat and phase change transformation. Remove the individual furnace lids to expose the heat sink. Place the sample in the heat sink heat flux sensor is installed in the heat sink to measure heat flow. By removing the heat sink lids and looking inside the furnace cover, two circular holders can be seen. When looking inside the insulating cover from the front of the DSC module, the right holder is the sample holder, while the left holder is the reference holder. The heat sink's temperature is transfered from the beat conducting surface through the thermal resistance material and then into the sample and reference holders. This increases or decreases the temperature of the sample and reference. The heat flow passing through the thermal resistance material is proportional to the temperature difference between the heat conducting surface on one end and the sample holder on the other end. The specially designed heat sink is accurately controlled to maintain a uniform temperature at the heat conducting surface. As a result, the measured difference in heat flow through the sample holder and reference ,holder is proportional to the sample and reference temperature differences. In this way, a heat flux type DSC detects the temperature difference signal and outputs it as a DSCsignal. A thermocouple located on the bottom of the sample holder is used to detect the samples temperature. Furthermore, there is a gas inlet on the inner right hand side of the heat sink in order to conduct gas purges. |
