Wireless temperature sensors for turbine temperature surveys

用于航空航天和发电应用的涡轮机在认证以及维修和大修后都要进行测试。在这些测试过程中，大量的传感器用于监测各种参数，如压力，温度，应变和振动。执行这些测试所需的成本和时间的主要贡献者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测系统中使用的电线。需要高温系统，因为即使在远离燃烧区的区域中，温度也会上升到远高于大多数无线系统的工作温度。该项目将与通用电气（GE）合作完成，通用电气是发电和航空航天应用涡轮机的主要制造商。本项目旨在解决涡轮机涡轮内部温度测量的具体问题。该区域温度适中（低于125°C），但需要大量传感器（>50），需要以适度的速率（>4次/秒）进行采样，精度为+-1 ° C。目前，没有可用于无线温度感测的系统，其工作温度高达125°C，与热电偶一起使用，感测温度高达375°C。本计画将设计并制作一个高温无线系统，并利用精密烘箱模拟高温环境进行测试。

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.