土壤土壤熱通量傳感器又稱作熱流板、土壤熱通量板、熱流計(jì)等名稱，是用來測(cè)量熱通量的儀器，可以用于土壤內(nèi)部測(cè)量。它通過一個(gè)熱電堆，以電壓形式輸出，電壓正比于熱通量，它容易操作，特別適用于測(cè)量土壤和建筑墻體、玻璃墻體的熱導(dǎo)率。利用埋在土中2cm處的熱通量板所測(cè)量得到的土壤熱通量值。一年當(dāng)中，它是隨著季節(jié)的變化而變化，夏季土壤熱通量為正值，既有熱量進(jìn)入土壤層中，而且量值較大;冬季則土壤熱通量為負(fù)值，土壤中的熱量向大氣釋放，但量值較小。
一、產(chǎn)品概述
土壤土壤熱通量傳感器又稱作熱流板、土壤熱通量板、熱流計(jì)等名稱，是用來測(cè)量熱通量的儀器，可以用于土壤內(nèi)部測(cè)量。它通過一個(gè)熱電堆，以電壓形式輸出，電壓正比于熱通量，它容易操作，特別適用于測(cè)量土壤和建筑墻體、玻璃墻體的熱導(dǎo)率。利用埋在土中2cm處的熱通量板所測(cè)量得到的土壤熱通量值。一年當(dāng)中，它是隨著季節(jié)的變化而變化，夏季土壤熱通量為正值，既有熱量進(jìn)入土壤層中，而且量值較大；冬季則土壤熱通量為負(fù)值，土壤中的熱量向大氣釋放，但量值較小。
二、適用范圍
本品可廣泛用環(huán)境、農(nóng)業(yè)、林業(yè)、種植、建筑、等領(lǐng)域。
三、技術(shù)參數(shù)
供電電壓：□12-24V□5V
輸出信號(hào)：□電流型4～20mA□0-2V□RS485定制
測(cè)量范圍：-200至200 w/m2
內(nèi)阻小于300Ω
測(cè)量精度：小于5%
熱流計(jì)算公式
熱流量（w/m2）=系數(shù)（w*m-2/mv）*輸出（mv）
工作電流:12V上電約26mA
四、功能特點(diǎn)
1.體積小巧，測(cè)量快速準(zhǔn)確
2.低功耗設(shè)計(jì)，采用合理的功耗控制模式
3.性能穩(wěn)定
五、測(cè)量方法
1.土壤中測(cè)量方法
應(yīng)該使板面與熱流量方向相垂直，水平放置于土壤層中。傳感器的埋設(shè)深度，通常是距自然下墊面3-10厘米深處，應(yīng)盡量避免直接設(shè)置在土層表面，因?yàn)樽匀幌聣|面并非幾何平面，表面的微小起伏將使傳感器讀數(shù)失去代表性，同時(shí)傳感器的上表面直接與空氣接觸也可能產(chǎn)生輻射誤差。通常在觀測(cè)場(chǎng)地選擇一塊具有代表性的地段，用鏟刀垂直向下挖一剖面，
從土壤表面向下沿剖面量出所需要的深度，然后沿水平方向掏空，其大小正好可以放置熱流板，并使傳感器的上下兩側(cè)面能與土壤保持良好的接觸，將導(dǎo)線沿剖面引出再將土壤回填。但要注意，熱流板的埋設(shè)深度應(yīng)該是其中心線與土壤表面的距離。
2.墻面上測(cè)量方法
首先將熱流傳感器表面均勻涂上凡士林，將涂有凡士林的熱流傳感器貼在墻體表面，使墻體和熱流傳感器能夠進(jìn)行緊密接觸，停留幾分鐘后，待熱流傳感器適應(yīng)環(huán)境溫度后可開始測(cè)量。
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適用范圍
本產(chǎn)品可適用于測(cè)量建筑物墻壁及土壤中的熱流量。
技術(shù)參數(shù)
供電電壓：12V DC
測(cè)量范圍：-500-500 W/m2
測(cè)量精度：＜5%
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光山县|
万州区|
土壤熱通量傳感器用于測(cè)量土壤中的熱能傳遞，采用熱電堆原理，實(shí)時(shí)監(jiān)測(cè)土壤能量平衡和傳熱過程。支持寬電壓供電與ModBus通信，可接入氣象站或云平臺(tái)，適用于巖土工程、氣象監(jiān)測(cè)及科研，具備IP68防護(hù)等級(jí)，適合長期埋設(shè)使用。
土壤熱通量傳感器采用高精度熱電堆技術(shù)，通過測(cè)量土壤上下層溫度差及熱流密度，精準(zhǔn)捕捉土壤內(nèi)部熱量傳遞動(dòng)態(tài)。其探頭設(shè)計(jì)貼合土壤結(jié)構(gòu)，有效減少接觸熱阻，確保數(shù)據(jù)真實(shí)可靠。設(shè)備具備防水防腐特性，適應(yīng)不同質(zhì)地土壤環(huán)境，支持長期埋設(shè)監(jiān)測(cè)。廣泛應(yīng)用于農(nóng)田生態(tài)研究、溫室調(diào)控、地質(zhì)勘探及氣候變化分析，為土壤能量平衡研究、作物生長模型構(gòu)建提供關(guān)鍵數(shù)據(jù)支撐。
土壤熱通量傳感器，作為一種高精度且多功能的測(cè)量設(shè)備，其在環(huán)境監(jiān)測(cè)與能量平衡研究中扮演著至關(guān)重要的角色。亦常被稱作熱流板、土壤熱通量板或熱流計(jì)，這款傳感器以其設(shè)計(jì)，專門用于測(cè)量熱通量，尤其擅長于捕捉土壤內(nèi)部的熱量流動(dòng)情況。
土壤熱通量傳感器(中西器材） ZXTR-RTL
