土壤剖面含水量温度电导率传感�?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>EnviroPro</span><span>土壤剖面水分温度电导率传感器采用杆式设计，每<span>10</span>厘米固定一组传感器；可以准确的测量土壤剖面不同深度的水分、温度及盐分的数值；可准确测量水分在农作物根际区域的运动过程，主要用于农作物、果树、园艺作物以及蔬菜的节水灌溉及水分利用效率的研究领域、�/span></p><p><strong><span>测量原理</span></strong></p><p><span>通常空气和干燥土壤的介电常数是一定的。水的介电常数约丹�span>80</span>，空气约丹�span>1</span>。因此土壤中介电常数的变化主要与土壤中水含量相关、�span>EnviroPro</span>是电容探头，可测量周围介质的介电常数。土壤的介电常数方根与传感器输出电压成线性相关。即向传感器提供一个测定电压，通过测量返回的电压值来计算土壤含水量。任何能精确测量介电常数的传感器都能用于测量土壤体积含水量，其影响因素主要是温度和盐碱度、�span>EnviroPro</span>传感器受温度的变化影�?小，传感器外层物质受盐碱度的影响*小、�span>EnviroPro</span>传感器功耗低，并且具有较高的分辨率，可以实现长期测量、�/span></p><p><strong><span>传感器长�?/span></strong></p><p><span>EnviroPro</span><span>土壤剖面水分传感器每间隔<span>10cm</span>设置一层微传感器，可提供四种规格类型的传感器，长度分别丹�span>40cm</span>�?span>80cm</span>�?span>120cm</span>咋�span>160cm</span>。每个传感器都经过严格的出厂校准，坚固耐用且密封良好，无需担心土壤水或其它化学物质造成的腐蚀、�/span></p><p><strong><span>技术参�?/span></strong></p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><p><span>土壤水分</span></p></td><td></td></tr><tr><td><p><span>测量范围</span></p></td><td><p><span>0% to 百分之一� of VMC</span></p></td></tr><tr><td><p><span>准确�?/span></p></td><td><p><span>��<span>2% @0%-50% VWC</span></p></td></tr><tr><td><p><span>分辨玆�/span></p></td><td><p><span>0.01%</span></p></td></tr><tr><td><p><span>土壤温度</span></p></td><td></td></tr><tr><td><p><span>测量范围</span></p></td><td><p><span>0</span><span>��<span>C</span><span> to +60<span>��C</span></span></p></td></tr><tr><td><p><span>准确�?/span></p></td><td><p><span>��<span>1</span>��<span>C</span><span>@25<span>��C</span></span></p></td></tr><tr><td><p><span>分辨玆�/span></p></td><td><p><span>0.01</span><span>��<span>C</span></p></td></tr><tr><td><p><span>电导玆�/span></p></td><td></td></tr><tr><td><p><span>测量范围</span></p></td><td><p><span>0 to 6 dS/m</span></p></td></tr><tr><td><p><span>准确�?/span></p></td><td><p><span>��<span>5 % @0 to 4 dS/m</span></p></td></tr><tr><td><p><span>分辨玆�/span></p></td><td><p><span>0.001 dS/m</span></p></td></tr><tr><td><p><span>环境指标</span></p></td><td></td></tr><tr><td><p><span>操作温度</span></p></td><td><p><span>-20</span><span>��<span>C</span><span> to 60<span>��C</span></span></p></td></tr><tr><td><p><span>存储温度</span></p></td><td><p><span>-40</span><span>��<span>C</span><span> to 85<span>��C</span></span></p></td></tr><tr><td><p><span>物理指标</span></p></td><td></td></tr><tr><td><p><span>供电</span></p></td><td><p><span>6 to 15V</span></p></td></tr><tr><td><p><span>传感器直徃�/span></p></td><td><p><span>34mm</span></p></td></tr><tr><td><p><span>传感器长�?/span></p></td><td><p><span>40cm</span><span>传感器（<span>4</span>层）</span></p><p><span>80cm</span><span>传感器（<span>8</span>层）</span></p><p><span>120cm</span><span>传感器（<span>12</span>层）</span></p><p><span>160cm</span><span>传感器（<span>16</span>层）</span></p></td></tr><tr><td><p><span>标准线缆长度</span></p></td><td><p><span>标准线缆长度<span>5 m</span>，可延长<span>4</span>芯双绞线<span>� </span>可直接埋入土壣�/span></p></td></tr><tr><td><p><span>数据采集器（选配（�/span></p></td><td><p><span>Stevens</span><span>系列数采�?span>CSI</span>系列数采�?span>DataTaker</span>系列数采</span></p></td></tr></tbody></table><p><span> 更多信息请咨询北京宝利恒科技有限公司、�/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="279619" /> <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）">