TP08土壤热导率探�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><span><strong><strong>TP08土壤热导率探夳�/strong></strong></span></p><p><span>　　小尺寸的非稳定状态探夳�span>—–�/span>用于热导率测野�/span></p><p><span>　　在针式热导率传感器的使用上，<span>Hukseflux</span>是目前市场上的佼佼者。拥有众多的型号可供用户选择，包括用于野外现场的大型传感器，小型号用于分析小样品的热导率测量，比如放射性材料制作的短的牢固的用于测量海岸土壤热阻、�/span></p><p><span>　　TP08</span>探头可以提供切实的性能，快速的测量介质的热导率（或热阻），而且可以保证非常高的精度水平。探头依仍�span>ASTM D 5334-00</span>＋�span>D 5930-97</span>咋�span>IEEE 442-1981</span>标准＋�span> TP08</span>的小型号�?span>TP02</span>，主要是长度上比<span>TP08</span>小。标准的<span>TP08</span>探头已经被证明在土壤，热回填材料，沉淀物，食品，粉末，泥浆，油漆，胶水和其它各种各样的材料中非常适合使用。非稳定状态探夳�span>(NSSP)</span>测量方法<span>(</span>也是知名的瞬时线源，热针，热脉冲和专线技�?span>) </span>有一些基本的有利条件，这些条件可以在小尺寸样品测量中不受限制，快�?概的实现测量、�span>Hukseflux</span>特定亍�span>NSSP</span>设计，特殊的型号已经开发用于现场实验。为了长久性的安装在土壤里面，设计了一个专注的型号<span>——TP01</span>、�span>TP08</span>的设计和测试都是和瓦格宁根大学的应用物理小组一起合作完成、�/span></p><p><span>　　ASTM</span>的表尊和<span>IEEE</span>的标准描述证明了测量材料热导率的方法、�span>ASTM D 5334-00</span>咋�span>D 5930-97</span>，以叉�span>IEEE Std 442-1981 " </span>标准测试方法<span>"</span>特殊用于非稳定状态探夳�span>NSSP</span>，并且已经在各种领域得到应用。一�?span>NSSP</span>由加热导线，上乘线源，一个温度传感器组成，温度传感器用于测量这个源的温度、�span>NSSP</span>的原理是独立依赖与一个线源：短时温度上升期间＋�span>?T</span>，仅依赖于加热器功率＋�span>Q</span>，以及介质热导率<span>��: </span></p><p><span>?T = (Q / 4 �� ��) (ln t + B)</span></p><p><span>　　?T</span>单位�?span>K</span>＋�span>Q</span>单位�?span>W/m</span>＋�span>��</span>单位�?span>W/mK</span>＋�span>t </span>是时间，单位�?span>s</span>咋�span>B</span>常数，在测量加热期间，加热温度的时间可以计算出来<span>(</span>对于<span>TP08</span>，典型为<span>2</span>分钟<span>)</span>＋�span>��</span>也可以被计算出来。没有限定采样尺寸，在针的周围，*�?span>20</span>ｍｍ半径可以被覆盖范围、�/span></p><p><span>　　为了测量<span>Q</span>＋�span>t</span>咋�span> ?T</span>，可以分别直接测量功率，时间和温度。完成这些测量不需要参考材料，因此<span>TP08</span>的测量是-概的、�/span></p><p><span>　　Hukseflux</span>特定于非稳定状态探头设计，<span>Hukseflux</span>起初的产品型号是<span>TP02</span>，这个型号提供了*佳的测量精度，结合了多种设计特点、�/span></p><p><span>针的长度丹�span>70mm</span>，从尖端到结点为<span>17mm</span>，直径为<span>1.2mm</span>＋�span>80 ml</span>的采样可以被分析<span>(35 mm </span>淰�span>)</span>。对于其他更小的样品采样，请咨询<span>Hukseflux</span>、�/span></p><p><span>TP08</span>的热电偶参比结位于底部，<span>TP08</span>的高精度测量不仅可以采样，而且底部还可以作为一个稳定温度测量、�/span></p><p><span>标定<span>/ISO 9000</span></p><p><span>　　探头稳定性的确认可以通过在甘油中的重复（每年）测试，而且更适合在多个温度条件下。标定参比筒<span>(CRC)</span>可溯源至<span>NPL</span>，标定参比筒可以仍�span>Hukseflux</span>公司购买、�span>TP02</span>适合�?span>ISO</span>标定实验室中使用、�/span></p><p><span>建议使用</span></p><p><span>※海洋沉淀物研穵�/p><p><span>※小型采样研穵�/span></p><p><span>※高成本采样（铀泥）研究</span></p><p><span>可选择９�span>TP08</span>容器，由于热平衡的相对重要性，可以丹�span>TP08</span>选择益而高容器、�/span></p><p><span>可选项</span></p><p><span>※比较设计：<span>Hukseflux</span>特定指向<span>NSSP</span>设计，比较模型，比如更小，更牢固，温度抵抗性更弹�/span></p><p><span>※土壤的长久性安装：<span>TP01</span>专门设计用于长期监测</span></p><p><span>※测量和控制解决方案：详�?span>TP08</span>手册</span></p><p><span>※手册：可以通过<span>Email</span>索取</span></p><p><span>为了更高精度的标定，<span>CRC</span>标定参比筒可以使�?/p><p><span>为了插入硬度很高的土壤，<span>GT</span>系列导深管可以使�?/p><p><span>技术性能参数</span></p><p><span>测试方法９�span>ASTM D 5334-00</span>咋�span>D 5930-97 IEEE Std 442-1981</span></p><p><span>针长９�span>70 mm</span></p><p><span>可溯源：<span>NPL</span></p><p><span>范围<span>(��)</span>９�span> 0.1—�? W/m.K</span></p><p><span>灵敏�?span>(?T)</span>９�span>K</span>型热电偶＋�span>ANSI MC96.1-1982</span></p><p><span>温度范围９�span>-55—�?80<span>ℂ�/span></span></p><p><span>精度<span>(@ 20 ��C)</span>９�span>��(3%+0.02) W/mK</span></p><p><span>温度依赖性精度：<span>��0.02 %/K (</span>附加<span>) </span></p><p><span>测量循环周期９�span>200 s (</span>典型<span>)</span></p><p><span>供电需汁�span>(</span>开兲�span>)</span>９�span>3 V</span>＋�span>1 Watt (</span>*�?span>)</span></p><p><span>介质<span>/</span>采样需求：颗粒状材料，粉末，泥浆，凝胶，糊状物，某些采样需要预先钻孓�/span></p><p><span>采样尺寸�?導�span>20 mm</span>半径�?小容�?span>80ml</span></p><p><span>更小采样：咨诡�span>HUkseflux</span></p><p><span>注意：请参阅手册获得更加详细的信�?/span></p><p><span>针和基部保护等级９�span>IP 68</span></p><p><span>整个传感器保护等级：<span>IP 67</span></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = $(this).index(); $(".xgfa_box").css("display","none"); $(".xgfa_box").eq(_index).css("display","block"); }); }); </script>  <div class="xgzl"> <div class="cxd_tit"><span></span>相关资料</div> <div class="xgzl_box"><div style="padding:10px;">暂无数据、�/div> </div> </div>  <div class="yhpl"> <div class="cxd_tit"><span></span>用户评论</div> <form id="FormComments" action="" method="post" onsubmit="return false"> <input name="SaveProComments" id="SaveProComments" type="hidden" value="yes" /> <input name="ProductID" id="ProductID" type="hidden" value="242163" /> <input name="ProQuality" id="ProQuality" type="hidden" value="10" /> <input name="ProService" id="ProService" type="hidden" value="10" /> <input name="ProUsability" id="ProUsability" type="hidden" value="10" /> <input name="ProCostperformance" id="ProCostperformance" type="hidden" value="10" /> <div class="yhpl_pf"> <div> <p>产品质量</p> <div><span id="Quality" class="stars star10"></span><span id="Quality_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>售后服务</p> <div><span id="Service" class="stars star10"></span><span id="Service_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>易用�?/p> <div><span id="Usability" class="stars star10"></span><span id="Usability_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>性价毓�/p> <div><span id="Costperformance" class="stars star10"></span><span id="Costperformance_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> </div> <div class="yhpl_pftit">评论内容</div> <textarea name="Comments" id="ProComments" onfocus="checklogin();" placeholder="分享产品使用经验/采购评价（不超过500字）">