绝缘纸聚合度下降是绝缘纸老化的最直接表征，目前普遍采用黏度法测量，但该方法测试过程烦琐，不利于现场测试，且需要对样品进行有损处理，破坏了设备原本的绝缘结构，无法应用于在运设备的固体绝缘老化评估，探索新的测量方法迫在眉睫。基于此，结合太赫兹技术，提出了一种实现绝缘纸聚合度的无损检测新方法。该方法采用多峰拟合算法分析了太赫兹光谱的老化特征峰，将多元线性回归分析应用于油纸绝缘聚合度的检测中，建立了以ln （DP）为因变量，以ln (AP
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