HFP01SC自標定土壤熱通量板/自校準熱通量傳感器
產品概述（中英文）
HFP01SC自標定土壤熱通量板是一款專為高精度土壤熱通量測量設計的創新型傳感器。該產品采用熱電堆原理，通過測量熱通量板上下表面的溫差產生電壓信號，結合介質熱傳導率實現精準測量。其獨特之處在于內置薄膜加熱器，可定期執行自檢和自校準功能，自動修正因土壤熱導率變化（如含水量波動）或環境溫度影響導致的測量偏差，顯著提升數據可靠性。傳感器采用陶瓷-塑膠復合外殼，具備IP67防護等級，適應-30℃至+70℃的嚴苛環境，適合長期埋設于土壤中。建議每個測量點位配置2個及以上傳感器以獲得更準確的空間平均值。1420
The HFP01SC self-calibrating soil heat flux plate is an innovative sensor designed for high-precision measurement of soil heat flux. Based on thermopile principle, it generates voltage signals by detecting temperature differences across the plate surface, combined with medium thermal conductivity for accurate calculation. Its distinctive feature lies in the integrated thin-film heater that performs periodic self-testing and auto-calibration, automatically compensating measurement deviations caused by soil thermal conductivity variations (e.g., moisture content) or ambient temperature effects, significantly enhancing data reliability. The sensor features a ceramic-polymer composite housing with IP67 rating, suitable for long-term burial in soils under harsh conditions ranging from -30°C to +70°C. Deployment of 2+ sensors per measurement site is recommended for improved spatial averaging. 51425
技術特點（中英文）
該產品采用VandenBos-Hoeksema方法實現動態校準，通過薄膜加熱器產生已知熱通量（典型值150W/m²），分析傳感器響應來修正熱導率不匹配問題。自檢過程同步驗證電纜連接與數據采集系統的完整性，每6小時自動執行一次，日均功耗僅0.02瓦。感應面積為8×10⁻⁴m²，靈敏度達60μV/(W/m²)，熱阻81×10⁻⁴K/(W/m²)，可測量-2000至+2000W/m²范圍內的熱通量。堅固的雙層電纜設計有效降低電噪聲干擾，標準配置5米電纜（可延長至40米），滿足不同場景安裝需求。21118
The product employs VandenBos-Hoeksema methodology for dynamic calibration, where a thin-film heater generates known heat flux (typically 150W/m²) to analyze sensor response and correct thermal conductivity mismatches. Self-test procedures simultaneously verify cable connections and data acquisition integrity, automatically executed every 6 hours with mere 0.02W daily power consumption. With sensing area of 8×10⁻⁴m², sensitivity of 60μV/(W/m²), and thermal resistance of 81×10⁻⁴K/(W/m²), it measures heat flux within -2000 to +2000W/m² range. The robust double-layer cable design minimizes electrical noise interference, while standard 5m cable (extendable to 40m) accommodates diverse installation scenarios. 91222
應用場景（中英文）
主要應用于地表能量平衡研究、波文比系統及建筑圍護結構熱流監測。在農業氣象領域，可精確量化土壤-大氣界面的能量交換過程；在生態研究中，有助于分析植被覆蓋區的潛熱/顯熱通量分配；建筑領域則用于評估墻體隔熱性能。相較于傳統傳感器，其自校準功能消除了實驗室返廠校準的需求，特別適合長期無人值守的野外臺站。數據輸出為線性電壓信號（0-50mV），兼容多數數據采集系統。31017
Primarily used in surface energy balance studies, Bowen ratio systems, and building envelope heat flux monitoring. In agricultural meteorology, it precisely quantifies energy exchange at soil-atmosphere interface; for ecological research, facilitates analysis of latent/sensible heat partitioning in vegetated areas; while in construction sector evaluates wall insulation performance. Compared to conventional sensors, its self-calibration eliminates laboratory recalibration needs, making it ideal for long-term unattended field stations. Linear voltage output (0-50mV) ensures compatibility with most data acquisition systems. 71523
HFP01SC自標定土壤熱通量板/自校準熱通量傳感器
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