HFP01SC自標(biāo)定土壤熱通量板/自校準(zhǔn)熱通量傳感器
產(chǎn)品概述（中英文）
HFP01SC自標(biāo)定土壤熱通量板是一款專為高精度土壤熱通量測量設(shè)計的創(chuàng)新型傳感器。該產(chǎn)品采用熱電堆原理，通過測量熱通量板上下表面的溫差產(chǎn)生電壓信號，結(jié)合介質(zhì)熱傳導(dǎo)率實現(xiàn)精準(zhǔn)測量。其獨特之處在于內(nèi)置薄膜加熱器，可定期執(zhí)行自檢和自校準(zhǔn)功能，自動修正因土壤熱導(dǎo)率變化（如含水量波動）或環(huán)境溫度影響導(dǎo)致的測量偏差，顯著提升數(shù)據(jù)可靠性。傳感器采用陶瓷-塑膠復(fù)合外殼，具備IP67防護等級，適應(yīng)-30℃至+70℃的嚴(yán)苛環(huán)境，適合長期埋設(shè)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(zhǔn)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(shù)特點（中英文）
該產(chǎn)品采用VandenBos-Hoeksema方法實現(xiàn)動態(tài)校準(zhǔn)，通過薄膜加熱器產(chǎn)生已知熱通量（典型值150W/m²），分析傳感器響應(yīng)來修正熱導(dǎo)率不匹配問題。自檢過程同步驗證電纜連接與數(shù)據(jù)采集系統(tǒng)的完整性，每6小時自動執(zhí)行一次，日均功耗僅0.02瓦。感應(yīng)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(nèi)的熱通量。堅固的雙層電纜設(shè)計有效降低電噪聲干擾，標(biāo)準(zhǔn)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(yīng)用場景（中英文）
主要應(yīng)用于地表能量平衡研究、波文比系統(tǒng)及建筑圍護結(jié)構(gòu)熱流監(jiān)測。在農(nóng)業(yè)氣象領(lǐng)域，可精確量化土壤-大氣界面的能量交換過程；在生態(tài)研究中，有助于分析植被覆蓋區(qū)的潛熱/顯熱通量分配；建筑領(lǐng)域則用于評估墻體隔熱性能。相較于傳統(tǒng)傳感器，其自校準(zhǔn)功能消除了實驗室返廠校準(zhǔn)的需求，特別適合長期無人值守的野外臺站。數(shù)據(jù)輸出為線性電壓信號（0-50mV），兼容多數(shù)數(shù)據(jù)采集系統(tǒng)。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(biāo)定土壤熱通量板/自校準(zhǔn)熱通量傳感器
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