【摘 要】
：
为了提高光纤布拉格光栅压力传感器的精度和降低系统成本,提出一种使用光纤双布拉格光栅测定压力的测量方法,即在外界压力作用下,传感光纤布拉格光栅反射波长的飘移被转变成
【机 构】
：
长安大学工程机械学院,青海油田分公司采油一厂,长安大学工程机械学院,长安大学工程机械学院 西安710061,甘肃敦煌736202,西安710061,西安710061
论文部分内容阅读
为了提高光纤布拉格光栅压力传感器的精度和降低系统成本,提出一种使用光纤双布拉格光栅测定压力的测量方法,即在外界压力作用下,传感光纤布拉格光栅反射波长的飘移被转变成在交变力策动下发生弯曲的等强度悬臂梁调制的扫描光栅的反射光脉冲间隔的变化。实验结果表明:光纤布拉格光栅反射波长漂移的测量范围为0~3nm,波长测量的不确定度为1pm;压力传感器的量程为0~6MPa时,压力的测量不确定度为0.005MPa。
In order to improve the accuracy of the fiber Bragg grating pressure sensor and reduce the system cost, a measuring method using fiber Bragg grating to measure the pressure is proposed. Under the action of the external pressure, the drift of the reflection wavelength of the fiber Bragg grating is transformed into a Variations in the reflected light pulse interval of a scanning grating of a cantilevered, equal-intensity, cantilevered beam modulated by force. The experimental results show that the measurement range of the reflected wavelength drift of fiber Bragg grating is 0 ~ 3nm and the uncertainty of wavelength measurement is 1pm. The pressure measurement uncertainty is 0.005MPa when the range of pressure sensor is 0 ~ 6MPa.
其他文献
Carbon is a keystone element in global biogeochemical cycles.It plays a fundamental role in biotic and abiotic processes in the ocean,which intertwine to mediat
蚯蚓作为土壤生态系统最重要的大型土壤动物之一，在物质循环及能量流动过程中起极其重要的作用。蚯蚓处理是指利用蚯蚓特殊的生态学功能，与环境中微生物协同作用而加速有机质分
Geophysical observations suggest that the transition zone is wet locally.Continental and oceanic sediment components together with the basaltic and peridotitic
Accumulating evidence indicates the critical importance of cerebrovascular dysfunction in the pathogenesis of Alzheimer’s disease (AD).However,systematic compa
根据“中央16号文件”要求,本文综述了广东商学院结合自身实际所开展的注重专职辅导员和思想政治理论课专任教师“两支队伍”建设、构建和强化学生思想政治教育“四个平台”(
The Ulva prolifera green tides in the Yellow Sea, China, which have been occurring since 2007, are a serious environmental problem attracting worldwide attentio
Nitric oxide (NO) is an important molecule for vasomotor tone,and elevated NO signaling was previously hypothesized as a unique and adaptive physiological chang
城市绿地土壤的物理特性研究为城市绿地土壤的管理和改良、城市生态环境的保护提供了理论依据，它对促进城市的可持续发展具有重要的理论和实践意义。本研究以深圳城市绿地土壤
Methanol-to-oletin (MTO) conversion has proven to be one of the most successful non-petrochemical routes for producing light olefins.Silicoaluminophosphate (SAP
地表微地形是影响坡面侵蚀过程的重要因素之一,其分布的随机性和侵蚀变化过程中的难确定性,影响了人们对水蚀机理的理解和水土保持措施的合理布设。因此,本文以川中丘陵区紫