温差发电器件性能测试装置研制OA
Development of performance testing apparatus for thermoelectric devices
放射性同位素温差电池(RTG)是深空探测、深海等极低温、弱光、无光等特殊场景的理想能源,其核心部件温差电器件的性能与寿命直接影响成败.准确评估器件在模拟工况下的热电性能和长期稳定性,是推动RTG技术发展的基础.针对现有温差发电器件测试装置存在测试效率低、条件控制不稳定、操作维护不便等问题,设计并研制了一套新型温差发电器件性能测试装置.该装置主体采用上下分体式真空腔体结构,三工位并行测试;通过气压驱动预紧系统实现预紧力精确控制;冷热端温度独立精密可调,最高温差达450℃.实验表明:装置真空度优于10-3 Pa,温度控制精度±1℃,压力控制精度±1%F.S.,多测试区一致性良好,重复性测试变异系数<2%;相较传统单器件测试并行测试效率提升60%以上,120 h连续运行实验验证了装置的长期稳定性.
Radioisotope Thermoelectric Generator(RTG)is an ideal power source for deep space,deep sea,and other scenarios with extremely low temperature,weak or no light.The performance and lifetime of thermoelectric devices directly determine mission success.Accurate evaluation under simu-lated conditions is fundamental for RTG technology.To address low efficiency,unstable control,and inconvenient maintenance of existing test apparatus,a novel system is developed.It features a split vacuum chamber for three-station parallel testing,a pneumatic preload for precise clamping force,and independently adjustable hot/cold side temperatures achieving a 450℃maximum temperature difference.Experiments show vacuum better than 10-3 Pa,temperature accuracy±1℃,pressure accu-racy±1%F.S.,good multi-zone consistency,and a repeatability coefficient of variation below 2%.Par-allel testing improves efficiency by over 60%compared with conventional single-device testing,and continuous operation(120 h)verifies long-term stability.
袁承洋;侯旭峰;高犇
中国电子科技集团公司 第十八研究所,天津 300384中国电子科技集团公司 第十八研究所,天津 300384中国电子科技集团公司 第十八研究所,天津 300384
信息技术与安全科学
放射性同位素电池温差发电器件性能测试测试装置并行测试
radioisotope thermoelectric generatorthermoelectric deviceperformance testingtest-ing apparatusparallel testing
《电源技术》 2026 (6)
1052-1056,5
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