THERMAL ANALYZER

• Main Authors: KUMAZAKI TAKASHI, YAMADA KENTARO
• Format: Patent
• Language: English; Japanese
• Published: 17.09.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To provide a thermal analyzer in which degradation in detection accuracy of a weight detector is prevented.SOLUTION: A thermal analyzer 100 comprises: a cylindrical heating furnace 3 extending in a direction of an axis O; a weight detector 32 which is disposed on a rear end side in the axial direction of the heating furnace and is provided with levers 43 and 44 extending in the axial direction to detect a weight; a connection 34 which connects the heating furnace and the weight detector and causes an internal space of the heating furnace and an internal space of the weight detector to communicate with each other and through which the levers extend toward the inside of the heating furnace from the weight detector; and sample holders 41 and 42 which are connected to front ends of the levers and are disposed in the heating furnace to hold a sample. The thermal analyzer 100 further comprises resistance heating heaters 52a and 52b disposed over the weight detector to apply a current of 6A or lower and a heater controller 80 which controls energized states of the heaters to keep the weight detector at a fixed temperature.SELECTED DRAWING: Figure 2 【課題】重量検出器の検出精度の低下を抑制した熱分析装置を提供する。【解決手段】軸Ｏ方向に伸びる筒状の加熱炉３と、加熱炉の軸方向の後端側に配置され、軸方向に延びて重量を検出するレバー４３、４４を備えた重量検出器３２と、加熱炉と重量検出器との間を接続し、加熱炉の内部空間と重量検出器の内部空間とを連通させ、重量検出器から加熱炉の内部に向かってレバーを配置する接続部３４と、レバーの先端に接続されて加熱炉の内部に配置され、試料を保持する試料保持部４１、４２と、を備えた熱分析装置１００であって、重量検出器を覆って配置され、６Ａ以下の電流を通電する抵抗加熱式のヒータ５２ａ、５２ｂと、ヒータの通電状態を制御し、重量検出器を一定温度に保持するヒータ制御部８０と、をさらに備えたことを特徴とする。【選択図】図２