| Fiber Bragg Grating Pressure Sensor Based on Corrugated Diaphragm |
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| 作者姓名： | FUHai-wei FUJun-mei QIAOXue-guang |
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| 作者单位： | [1]SchoolofElectron.andInform.Eng.,Xi＇anJiaotongUniversity,Xi＇an710049,CHN [2]SchoolofScience,Xi＇anPetroleumUniversity,Xi＇an710065,CHN |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，Major Science and Technology Project of Ministry of National Education，国家自然科学基金，Science and Technology Project of the Education Depatrment of Shaanxi Province，Science and Technology Project of Xi'an |
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| 摘 要： | A kind of fiber Bragg grating pressure sensor based on corrugated diaphragm is proposed. The relationship between the central wavelength of reflective wave of FBG and pressure is given, and the expression of the pressure sensitivity coefficient is also given. Within the range from 0 MPa to 0.3 MPa, the experimental pressure sensitivity is 7. 83 nm/MPa, which is 2 610 times than that of the bare fiber grating. The experimental results agree with the theoretical analysis. It is indicated that the expected pressure sensitivity of the sensor can be obtained by optimizing the size and mechanical parameters of the corrugated diaphragm.
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| 关 键 词： | 光纤布拉格光栅 压力传感器 FBG 灵敏度 皱纹膜片 |
| 收稿时间： | 2004/4/5 |
Fiber Bragg Grating Pressure Sensor Based on Corrugated Diaphragm |
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| FUHai-wei FUJun-mei QIAOXue-guang.Fiber Bragg Grating Pressure Sensor Based on Corrugated Diaphragm[J].Semiconductor Photonics and Technology,2004,10(4):278-281. |
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| Authors: | FU Hai-wei FU Jun-mei QIAO Xue-guang |
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| Abstract: | A kind of fiber Bragg grating pressure sensor based on corrugated diaphragm is proposed. The relationship between the central wavelength of reflective wave of FBG and pressure is given, and the expression of the pressure sensitivity coefficient is also given. Within the range from results agree with the theoretical analysis. It is indicated that the expected pressure sensitivity of the sensor can be obtained by optimizing the size and mechanical parameters of the corrugated diaphragm. |
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| Keywords: | Guided wave and fiber optics FBG FBG sensing FBG pressure sensing Pressure sensitivity |
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