自动冰点测定器的研究  

Research on the Automatic Freezing Point Tester

作　　者：罗争光[1] 邬超[2] 杨小峰[3] 

机构地区：[1]中国科学院研究生院软件学院,北京100190 [2]中国科学技术大学物理学院,安徽合肥230026 [3]上海理工大学机械工程学院,上海200093

出　　处：《自动化仪表》2016年第7期40-42,共3页Process Automation Instrumentation

摘　　要：针对手动冰点测定器试验用油量多、测试结果误差大、效率低等特点,对全自动冰点测定器进行了研究。利用压缩机和半导体混合制冷技术对油样进行降温处理,采用光电捕捉技术分析油样冰点,提高了制冷效率和制冷深度。对不同类型油样进行多次测试,结果表明,仪器重复性和再现性完全符合标准。The manual freezing point tester features big error in test results, low efficiency and wasting oil for test, so the automatic freezing point tester is researched. The samples are cooled by using the refrigeration technology which is mixing semiconductor refrigeration and compressor refrigeration; and the freezing point of samples is analyzed by using photoelectric capturing technology, the efficiency of refrigeration and the refrigerating depth are improved. Through many tests of different type of oil samples, the repeatability and reproducibility of the instnm^ent completely match the standard.

关 键 词：航空燃料 冰点测定器 传感器 半导体制冷 压缩机制冷 光电检测 温度控制 

分 类 号：TH89[机械工程—仪器科学与技术] TP27[机械工程—精密仪器及机械]