目的：根据热辐射理论和红外测温原理，探索利用红外热像仪检测钉螺的生理学体温。方法在实验室，研究红外热像仪进行钉螺体温检测的条件，通过红外成像仪扫描各种检测条件下的钉螺,拍取热图像后取点分析，计算钉螺体温结果，分析钉螺的变温特征。结果在背景温度25.5℃，湿度51%条件下测试，钉螺生态温度呈正态分布（0.21±0.14）℃，活螺与死螺有不同的变温速率，钉螺表面湿度、体液分泌、运动状态是钉螺生态温度变化的影响因素，螺龄对于钉螺生态温度变化影响无统计学意义。结论运用红外成像技术能准确、快速、安全、有效地测定钉螺的体温。检测钉螺生态体温的变化特征为无创鉴定钉螺死活提供了理论基础。%Objective To identify the possibilities of detecting physiological temperature of snails based on the theory of thermal radiation and infrared temperature measurement principle. Methods The conditions for snail temperature measurement with thermal imager were initially determined in laboratory setting, then the infrared thermal imager was used to scan the snails under diverse detection conditions. Individual thermal imag⁃ing point was set and photographed for examining the properties of snail temperature through calculation of the tested results. Results Physiological temperature showed normal distribution by (0.21±0.14)℃under the ambi⁃ent temperature at 25.5℃ and humidity in 51%. Living and dead snails had different rate of temperature change. Body surface humidity, fluid secretion and motion state were factors affecting the physiological temper⁃ature changes in snails. Yet, the age had no significant effect on the physiological temperature change of snails. Conclusion Infrared imaging technology can be accurate, quick, safe and efficient tool for detecting snail tem⁃perature, and this technique may supply a theoretical basis for measuring the temperature changes in dead or live snails without invasion.
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