.png){kind=icon}
返回
A High-Precision Wind Speed Sensor Using Modulated Pump Light Dynamic Temperature Response
.png){kind=icon}
PRE
AI
DOI：10.1109/JSEN.2024.3470889.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
A high-precision wind speed sensor is designed and experimentally verified in this article. Using modulated pump light to heat the cobalt-doped fiber results in a dynamic temperature response in the wind speed sensor. Wind speeds are related to the amplitudes of the dynamic temperature response rather than the static steady-state temperature, which enhances measurement precision. The response sensitivity is higher under lower wind speeds. The temperature of the cobalt-doped fiber rises as it absorbs the pump light energy and then drops when the pump light is turned off. The center wavelength of the fiber Bragg grating (FBG) exhibits periodic shifts with temperature variations. A part of the sensor's heat is taken away in a wind field, which causes various temperature response amplitudes under the same pump light energy. The amplitudes of the FBG center wavelength vary with different wind speeds. By using the edge-filtering intensity demodulation method, the wavelength variation amplitudes with temperature are converted into the amplitudes of the photodetector's output voltage variation. The specific relationship between the amplitudes of voltage variation and wind speeds is used to measure wind speed. Measurements were taken within a wind speed range of 0-3 m/s. Experimental results demonstrate that the sensor has good repeatability and stability. Its sensitivity can reach -9.79 mV/((ms(-1)) at low wind speeds. The error stays below 0.03 m/s within the range of 0-0.5 m/s.
Keyword:
Temperature sensors
Sensors
Optical fiber sensors
Wind speed
Temperature measurement
Optical fibers
Fluid flow measurement
Heat pumps
Optical fiber amplifiers
Heating systems
Cobalt-doped fibers
dynamic temperature response
high-precision wind speed measurement
hot wire anemometer
wind speed sensor
期刊
IF:
4.5
论文数:
2.2W
被引数:
7.3W
机构
引用论文
Wind speed measurement with a low-cost polymer optical fiber anemometer based on Fresnel reflection
PREAI
分享收藏Isoleucine metabolism by leukemic and normal human leukocytes in relation to cell maturity and type白血病和正常人类白细胞中异亮氨酸的代谢，与细胞成熟度和类型的关系.png)
Blood
BloodIF0
PREAI
分享收藏Flexible capacitive pressure sensor: material, structure, fabrication and application柔性电容式压力传感器: 材料、结构、制作及应用
PREAI
分享收藏Prediction of SARS-CoV-2 3C-like protease (3CLpro) crystal structure to provide COVID-19 inhibitor design through computational studies通过计算研究预测SARS-CoV-2 3C-like蛋白酶（3CLpro）的晶体结构，以提供COVID-19抑制剂设计。
OAAI
OAAI分享收藏
查看更多内容