Special issue dedicated to the NATO applied vehicle technology research specialists' meeting AVT-RSM-306 'transitioning gas turbine instrumentation from test cells to on-Board applications'

摘要

The harsh high-temperature environment of a gas turbine engine presents a significant challenge to the instrumentation community, requiring robust and dependable technologies for sensing and monitoring vibration, mass flows, fuel properties, exhaust gas composition and gas path debris. On-board sensors are expected to operate for thousands of hours, as opposed to test-cell instrumentation running tens of hours, and their reliability has to be much higher than the components of which they are monitoring the health. Many of an engine's functional parameters cannot be measured directly due to the adverse internal environment. This challenge can be addressed by the usage of high temperature materials, non-contact measurement techniques and gas path models.