Patent ID: 7500779

Claim:
A thermal analysis apparatus comprising: a support base; a heating furnace having an approximately cylinder shape and whose inside can be raised in temperature; a heating furnace fixation part which fixes the heating furnace to the support base; a furnace tube which has an approximately cylinder shape, which is inserted through the heating furnace with an interstice therebetween, and which is fixed at a base end part thereof to the support base by a fixation member; fixation means for fixing the position of the furnace tube in a radial direction and permitting expansion and contraction of the furnace tube in an axial direction, the fixation means comprising at least three butting members which butt against the furnace tube in at least three places in a circumferential direction; sample holding means for holding a sample inside a heating part of the furnace tube that is heated by the heating furnace; and temperature measurement means for measuring a temperature change of the sample.