高精度前向散射式能見度儀設計
首發時間：2025-10-27
姜濤（2001—），男，碩士研究生，主要研究方向為傳感器開發
高世交 2 3 李鵬 2 3李鵬，教授，主要研究方向為數字信號處理算法、傳感網絡等，peng.li@nuist.edu.cn
王永 2摘要：針對現有能見度儀測量誤差顯著、環境擾動敏感、校準方法復雜的問題，設計了一種輕量化、低成本且集成校準一體式與窗口污染在線監測功能的高精度前向散射式能見度儀。該儀器同步采集風速、降水量、相對濕度和溫度等氣象參數，通過多元線性回歸模型動態補償反演能見度值。室外長期實驗結果表明，該樣機與Vaisala?PWD50能見度儀15 min相對誤差在10~2 000 m、2 000~10 000 m和10 000~25 000 m區間分別小于±5%、±10%和±15%，環境補償后整體誤差降低約32%，決定系數（R2）由0.977 8提升至0.990 1。驗證了該能見度儀在多變氣象條件下具有良好的穩定性和測量精度，能夠滿足自動氣象站、海上平臺及交通安全監測等場景的高精度應用需求。
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Design of a high-precision forward-scattering visibility meter
姜濤（2001—），男，碩士研究生，主要研究方向為傳感器開發
GAO Shijiao 1 2 LI Peng 1 2李鵬，教授，主要研究方向為數字信號處理算法、傳感網絡等，peng.li@nuist.edu.cn
WANG Yong 3Abstract：To address the issues of existing visibility meters, such as significant measurement errors, sensitivity to environmental disturbances, and complex calibration procedures, a high-precision forward scattering visibility meter with lightweight design, low cost, integrated calibration function, and online window contamination monitoring is proposed. The instrument simultaneously acquires meteorological parameters-wind speed, precipitation, relative humidity, and temperature-and employs a multiple linear regression model to dynamically compensate the inverted visibility values. Long-term outdoor experiments demonstrate that the prototype\'s 15-minute relative errors compared to the Vaisala PWD50 are within ±5%, ±10%, and ±15% for the 10-2 000 m, 2 000-10 000 m, and 10 000-25 000 m ranges, respectively. After environmental compensation, the overall error is reduced by approximately 32%, and the coefficient of determination (R2) increases from 0.977 8 to 0.990 1. These results verify that the sensor exhibits excellent stability and measurement accuracy under variable meteorological conditions, , and can meet the high-precision application requirements of scenarios such as automatic weather stations, offshore platforms, and traffic safety monitoring.
Keywords： visibility forward scattering high precision error compensation multiple linear regression
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