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首页> 外文期刊>Review of Automotive Engineering >Temperature Measurement in Thin-wall Ceramic Catalytic Substrates for D.I. Diesel Engines - Development of Fine Gauge Thermocouples and Study of Temperature Detection Performance and Durability
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Temperature Measurement in Thin-wall Ceramic Catalytic Substrates for D.I. Diesel Engines - Development of Fine Gauge Thermocouples and Study of Temperature Detection Performance and Durability

机译:D.I.薄壁陶瓷催化基质的温度测量柴油发动机-细规热电偶的开发以及温度检测性能和耐久性的研究

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摘要

Butt-welded fine gauge type-K thermocouples of three different diameters, 25, 50 and 100μm, were produced according to an original method and used for gas and wall temperature measurement in an uncoated substrate so as to compare durability and detection performance. The results showed that 50 μm diameter thermocouples are suitable for this type of measurement, since these thermocouples have a response performance as quick as that of 25 μm thermocouples, and because of excellent toughness. Composition analysis of the produced thermocouples also showed that poor mixture of alumel and chromel was responsible for the weakness of 25 μm thermocouples.
机译:按照原始方法生产了三种直径分别为25、50和100μm的对焊精细K型热电偶,并将其用于未涂层基材中的气体和壁温测量,以比较耐用性和检测性能。结果表明,直径为50μm的热电偶适用于此类测量,因为这些热电偶的响应性能与25μm的热电偶一样快,并且具有出色的韧性。所生产热电偶的成分分析还表明,铝和铬合金的不良混合物是25μm热电偶的弱点。

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