Engine Cylinder Head Temperature Measurement Based on Optical Fiber Probe

Engine Cylinder Head Temperature Measurement Based on Optical Fiber Probe
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基于光纤探头的发动机缸盖温度测量

DOI:
10.1520/jte20130317
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发表时间:
2015-07
影响因子:
1.2
通讯作者:
蒋奇
蒋奇
中科院分区:
材料科学4区
文献类型:
--
作者:
蒋奇

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提出了一种利用嵌入式光纤光栅(FBG)测量发动机气缸盖温度的方法,该方法对FBG的工作干扰和改动最小。在不同工况下发动机运行期间,以0.1°C的分辨率记录气缸盖的温度。该测试系统具有高速数据采集能力,光纤光栅传感器比PT100电阻温度检测器(RTD)具有更好的动态负载瞬态性能。此外,作者还探讨了由FBG的光谱宽度得到的温度梯度与反射波形之间的关系。
A method of investigating engine cylinder head temperature is presented in this paper that uses an embedded fiber Bragg grating (FBG) with the least modification and intrusion on its operation. The temperature of cylinder head is recorded with a resolution of 0.1°C during engine operation under different working conditions. The test system has high-speed data acquisition and the FBG sensors exhibit better transient performance to dynamic loading than PT100 resistance temperature detector (RTD). Furthermore, the authors explore the relationship between temperature gradients obtained by the FBG's spectral width as well as the reflected waveform.
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