本文概述了热电探测器的工作原理,导出了响应率、噪声、噪声等效功率以及探测率。按不同噪声源讨论了响应率与频率的相互关系。 本文也介绍了硫酸三甘肽、钽酸锂、铌酸锶钡、热电陶瓷以及偏聚氟乙稀五种主要热电材料的性能和影响选择材料的因素并且总结了三种规格的探测器的特性曲线。 本文也报导了目前流行的探测器的种类及一些使用情况,还简单介绍了将来的展望。 This article summarizes the working principle of the thermoelectric detector, derived the response rate, noise, noise equivalent power and detection rate. According to different noise sources, the relationship between response rate and frequency is discussed. This paper also introduced the properties of five main thermoelectric materials, such as tripolyphosphate, lithium tantalate, barium strontium niobate, pyroelectric ceramic and polyvinylidenefluoride, as well as the factors influencing the selection of materials, and summarized the characteristics of three kinds of detectors curve. This article also reports on the current type of detector and some of the use of the situation, but also briefly describes the future prospects.