| 王凤钧,罗志会,陈思,邬丰羽,潘礼庆.基于CCD解调的光纤光栅电压传感器[J].电子测量与仪器学报,2017,31(11):1725-1730 |
| 基于CCD解调的光纤光栅电压传感器 |
| Fiber grating voltage sensor based on CCD demodulation |
| |
| DOI：10.13382/j.jemi.2017.11.005 |
| 中文关键词: CCD解调 FBG传感器 压电陶瓷 电压测量 |
| 英文关键词:CCD demodulation FBG sensor piezoelectric ceramics voltage measurement |
| 基金项目:湖北省自然科学基金（2015CFB436）、湖北省重大科技专项（2014BEC059）资助 |
|
|
| Author | Institution |
| Wang Fengjun | College of Electrical Engineering and New Energy, Three Gorges University, Yichang 443002, China |
| Luo Zhihui | College of Science, Three Gorges University, Yichang 443002,China |
| Chen Si | College of Science, Three Gorges University, Yichang 443002,China |
| Wu Fengyu | College of Electrical Engineering and New Energy, Three Gorges University, Yichang 443002, China |
| Pan Liqing | College of Science, Three Gorges University, Yichang 443002,China |
|
| 摘要点击次数: 2491 |
| 全文下载次数: 13490 |
| 中文摘要: |
| 电能质量的好坏直接影响用电设备和电力系统能否正常运行，精确测量电压幅值和频率是分析电能质量的关键。提出了一种基于CCD解调的光纤光栅（FBG）电压传感器，利用压电陶瓷的逆压电效应改变粘贴在压电陶瓷上的FBG波长，采用CCD模块实时解调FBG波长的变化，提取被测电压的幅值和频率信息。理论分析了加载电压与光栅波长变化的关系，搭建了带温度补偿的传感系统，实验研究了传感器的静态、动态特性。实验结果表明，该传感器的线性拟合度为0.995，非线性误差为2.998%，电压灵敏度达到8.47 pm/V，能较好检测正弦电压的频率以及谐波信息，这为在复杂环境评估电能质量提供了参考。 |
| 英文摘要: |
| The power quality affects the normal operation of electrical equipment and power system directly. Accurate measurement of voltage amplitude and frequency is a prerequisite for the analysis of power quality. In this paper, a fiber Bragg grating(FBG) voltage sensor based on CCD demodulation is proposed. Using the inverse piezoelectric effect of piezoelectric ceramics to change the wavelength of the FBG attached to the piezoelectric ceramic, the purpose of detecting the voltage is achieved. The relationship between the voltage and the wavelength of grating is analyzed theoretically. The experiments show that the non linear error is 2.998% and loaded voltage sensitivity of the sensor is 8.47 pm/V, which can detect the waveform of the voltage below 50 Hz. This method provides a reference for assessing the power quality in complex environments. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
