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首页> 外文期刊>Journal of KONBiN >Inductive sensors for blade tip-timing in gas turbines
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Inductive sensors for blade tip-timing in gas turbines

机译：用于燃气轮机叶片端正时的感应式传感器

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The paper reviews features and applications of the upgraded inductive sensor for BTT, which is able to operate in contact with exhaust gases of temperature even as high as 1200 K. The new design includes metal-ceramic housing ensuring proper heat transfer, magnetic circuit containing set of permanent magnets with various magnetic field values and Curie temperatures, completely redesigned windings and current/voltage converter used instead of an electromotive force amplifier. Its principle of operation is based on electro-dynamical interaction and therefore it may be referred as a passive eddy-current sensor. The sensor technique has been demonstrated on four stages of a surplus military turbofan including the high pressure turbine as part of the engine health monitoring system. We present signal samples and review methods used for online processing of time-of-arrival signals when only a limited number of sensors is available.
机译：本文回顾了用于BTT的升级版感应传感器的功能和应用，该传感器能够与温度高达1200 K的废气接触。新设计包括金属陶瓷外壳，确保正确的热传递，磁路包含具有各种磁场值和居里温度的永磁体，完全重新设计的绕组和电流/电压转换器，代替了电动势放大器。它的工作原理基于电动相互作用，因此可以称为无源涡流传感器。传感器技术已在包括军用高压涡轮在内的剩余军用涡轮风扇的四个阶段进行了演示，高压涡轮是发动机健康监测系统的一部分。当只有有限数量的传感器可用时，我们介绍了用于在线处理到达时间信号的信号样本和回顾方法。

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