This paper proposes a transient compensation method for thermistor-based sensors in constant temperature configuration. The main objective is to use a filtered estimation of the neglected transient effect in order to avoid steady-state assumption and to mitigate the transitory measurement error. A direct compensation method is proposed to obtain the compensated measurement from the original uncompensated information based on the electric equivalence principle. Digital and analog simplified estimation strategies are considered to obtain the filtered derivative of the thermistor temperature. A frequency response analysis is presented to derive the relationship between transient estimation errors and sampling interval. Finally, an experimental case study is presented to: (i) illustrate the effectiveness of the compensation method, (ii) analyze measurement noise effect in the context of the proposed approach and (iii) discuss about the advantages of the gain correction in the context of the proposed approach.

本文提出了一种在恒定温度下基于热敏电阻的传感器的瞬态补偿方法。主要目标是对被忽略的瞬态效应进行滤波估计，以避免稳态假设并减轻瞬态测量误差。提出了一种直接补偿方法，基于电当量原理从原始的未补偿信息中获得补偿后的测量值。考虑使用数字和模拟简化估算策略来获得热敏电阻温度的滤波导数。提出了频率响应分析，以推导瞬态估计误差与采样间隔之间的关系。最后，提供了一个实验案例研究：（i）说明补偿方法的有效性，