Wireless temperature sensors for turbine temperature surveys

用于航空航天和发电应用的涡轮机既要接受认证测试，也要在维修和大修后进行测试。在这些测试过程中，使用了大量的传感器来监测各种参数，如压力、温度、应变和振动。进行这些测试所需的成本和时间的一个主要因素是将电线连接到传感器所需的时间。该项目的目的是探索使用高工作温度无线系统来取代涡轮机监控系统中使用的电线。需要高温系统，因为即使在远离燃烧区域的区域，温度也可能远远高于大多数无线系统的运行温度。该项目将与通用电气(GE)合作完成，通用电气是用于发电和航空航天应用的涡轮机的主要制造商。本项目旨在解决汽轮机整流罩内温度测量的具体问题。该地区温度适中(低于125°C)，但需要大量传感器(&gt；50)，需要以中等速率(&gt；4次/S)进行采样，精度为+-1°C。目前还没有可用于工作温度高达125°C的无线温度传感系统，可用于温度高达375°C的热电偶传感。该项目将设计和制造一个高温无线系统，并使用精密烤箱进行测试，以模拟罩下环境。

Turbines used for aerospace and power generation applications undergo testing for both certification and after repair and overhaul. During these tests a large number of sensors are used to monitor various parameters such as pressure, temperature, strain and vibration. A major contributor to the cost and time required to carry out these tests is the time required to run wires to the sensors. The purpose of this project is to explore the use of high operating temperature wireless systems to replace the wires used in turbine-monitoring systems. High temperature systems are required as, even in regions remote from the combustion zones, the temperatures can rise well above the operating temperatures of most wireless systems. This project is to be done in collaboration with General Electric (GE), who is a major manufacturer of turbines for both power generation and aerospace applications. This project aims to solve the specific problem of temperature surveying within the cowl of the turbine. This region has moderate temperatures (less than 125°C), but requires large numbers of sensors (>50) that need to be sampled at modest rates (>4 times/s) with accuracy of +-1°C. At present there are no available systems for wireless temperature sensing with the operating temperatures of up to 125°C for use with thermocouples sensing temperatures up to 375°C. This project will design and fabricate a high temperature wireless system and carry out tests using precision ovens to simulate the under cowl environment.