微型燃气轮机电容式叶尖间隙测量

IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI:10.1109/IMTC.2002.1007093

T. Fábián, Sangkyun Kang, F. Prinz

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引用次数: 13

摘要

燃气轮机的效率与转子叶片与机匣间隙成反比关系。近年来，微型燃气涡轮发动机小型化的发展对叶尖间隙的测量提出了新的挑战。本文介绍了一种基于电容式测量的棕榈顶微型燃气涡轮发动机叶顶间隙测量系统的研制。该传感器采用带同步探测器的比值测量原理来测量转子叶片与机匣之间的平均叶尖间隙。所述非导电压缩机的表面改性用于制造相对于所述壳体的电极。测量范围为100 /spl mu/m，分辨率为0.8 /spl mu/m。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Capacitive blade tip clearance measurements for a micro gas turbine

The efficiency of a gas turbine has an inverse relationship with the clearance between the rotor blades and the casing. Recent efforts in miniaturization of micro gas turbine engines have created new challenge in tip clearance measurement. This paper describes the development of a tip clearance measurement system, based on capacitive measurement for a palm-top micro gas turbine engine. The sensor uses a ratio-metric measurement principle with synchronous detector to measure the average tip clearance between the rotor blades and the casing. A surface modification of the nonconductive compressor is used to create an electrode opposing the casing. A measurement range of 100 /spl mu/m was achieved with a resolution of 0.8 /spl mu/m.

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IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)

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