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首页> 外文会议>AIAA/ASME/SAE/ASEE joint propulsion conference;AIAA propulsion and energy forum >Design and operation of a fast, thin-film thermocouple probe on a turbine engine
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Design and operation of a fast, thin-film thermocouple probe on a turbine engine

机译：涡轮发动机上快速薄膜热电偶探头的设计和运行

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As a demonstration of technology maturation, a thin-film temperature sensor probe was fabricated and installed on a F117 turbofan engine via a borescope access port to monitor the temperature experienced in the bleed air passage of the compressor area during an engine checkout test run. To withstand the harsh conditions experienced in this environment, the sensor probe was built from high temperature materials. The thin-film thermocouple sensing elements were deposited by physical vapor deposition using pure metal elements, thus avoiding the inconsistencies of sputter-depositing particular percentages of materials to form standardized alloys commonly found in thermocouples. The sensor probe and assembly were subjected to a strict protocol of multi-axis vibrational testing as well as elevated temperature pressure testing to be qualified for this application. The thin-film thermocouple probe demonstrated a faster response than a traditional embedded thermocouple during the engine checkout run.
机译：作为技术成熟的证明，制造了薄膜温度传感器探头，并通过管道镜检修口将其安装在F117涡扇发动机上，以监测发动机检定测试运行期间压缩机区域引气通道中所经历的温度。为了承受这种环境下的恶劣条件，传感器探头由高温材料制成。薄膜热电偶感测元件是使用纯金属元素通过物理气相沉积来沉积的，因此避免了溅射沉积特定百分比的材料以形成热电偶中常见的标准化合金的不一致。传感器探头和组件均经过严格的多轴振动测试以及高温压力测试，以符合该应用要求。与传统的嵌入式热电偶相比，该薄膜热电偶探头在发动机校验运行期间显示出更快的响应速度。

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