本文就厚衬底单元件热释电探测器,在一般的三维空间中,既考虑了热量的纵向扩散,又考虑了横向扩散,从而建立了一个综合模型,并导出了响应度公式。本文的特点是:(1)、求出了较严格的解析式,它对分析器件各参数对响应度的影响有重要的参考价值;(2)、在相应的条件下,该响应度的解析式可以还原到国内外己发表过的七种公式,体现了模型的综合价值。 In this paper, a thick substrate single element pyroelectric detector, in the general three-dimensional space, not only consider the longitudinal heat diffusion, but also consider the lateral diffusion, thus establishing a comprehensive model, and derived the formula for the response. The characteristics of this paper are as follows: (1) The more rigorous analytic formula is obtained, which has an important reference value for analyzing the influence of each parameter of the device on the responsivity; (2) Under the corresponding conditions, the analysis of the responsivity The formula can be restored to seven formulas that have been published at home and abroad, reflecting the integrated value of the model.