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Home News 了解冰点仪的测量原理

了解冰点仪的测量原理

News Updates 2025-7-11

PSI CRYETTE冰点仪采用过冷和热电偶精确测量溶液的冰点。过冷现象是指溶液的温度低于冰点值而不会结冰的现象。当过冷的溶液进行搅拌，溶液便会结晶。结晶后溶液会释放出一定的热量，称为晶化热。如下图所示，溶液在过冷，在冰点（F1）以下仍然是液体，当震动或搅拌，会结晶（S），释放出的晶化热使溶液的温度上升。样品的温度升至冰点平台（F2）；过后温度又继续下降。平台的温度就是溶液的冰点值。

PSI 冰点仪测量原理图片.png

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