土壤呼吸长期定位自动监测�?参数-价格-中国粉体罐�/title>

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} }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><strong><span>系统功能</span></strong></p><p><span>土壤呼吸是全球碳循环中重要的流通途径之一，是表征土壤质量和肥力的重要生物学指标。土壤呼吸可通过直接或间接方式进行测定，其中动态气室与红外气体分析器相结合是公认的较为理想的测定方法、�/span></p><p><span>�?/span><span>系统是一款基于动态气室与红外分析原理�?*设计的高精度、智能化、高性能的土壤呼吸长期定位自动监测系统。系统主要包括不透明自动开闭动态气室、高精度红外</span>CO</span><sub><span>2</span></sub><span>气体分析器、数据采集及控制系统、气路自动切换系统等。系统采用了独特的自动开闭动态气室、压力补偿装置、气路自动控制装置等，可野外长时间连续自动测量土壤呼吸，并可根据需�?多扩展至</span>16<span>个通道，实现多点土壤呼吸的长期连续测定。其原理是：在测量过程中，将密闭气室覆盖于一定面积的土壤表面，气泵使气体在呼吸室与分析器之间形成循环，测定一段时间气路中</span><span>CO</span><sub><span>2</span></sub><span>浓度的变化，可计算该段时间土壤的</span>CO</span><sub><span>2</span></sub><span>通量变化。并通过同步检测同化箱内外的微环境，可进一步分析微环境变化对测量结果的影响、�/span></p><p><strong></strong></p><p><strong><span>应用领域</span></strong></p><p><span>用于同步监测单点或多点从土壤表层向大气排攽�/span>CO</span><sub><span>2</span></sub><span>气体的呼吸速率。广泛应用在农业、林业、生态、气象、地质等领域土壤碳排放规律方面的科学研究、�/span></p><p><strong></strong></p><p><strong><span>系统特点</span></strong></p><p><span>l </span><span>可野外长时间连续自动测量土壤呼吸：�/span></p><p><span>l </span><span>坚固耐用，操作简单，无需专业人员：�/span></p><p><span>l </span><span>动态气室及压力补偿装置尽可能减小气室内外环境差异；</span></p><p><span>l </span><span>独特的气室驱动装置保证气室开闭缓慢稳定，减小对气室内外环境的扰动：�/span></p><p><span>l </span><span>可根据需要自由选择</span>1<span>｝�/span><span>16</span><span>个通道，实现多点测定、�/span></p><p><strong><span>系统组成</span></strong></p><p><span>主机（数据采集及控制系统）、高精度红外</span>CO2<span>气体分析器、气压、气室温湿度、防护机箱、自动开闭呼吸箱�?/span><span>GPRS</span><span>无线传输模块（不包括卡和数据传输费）、气路自动切换系统、太阳能安装支架 ，太阳能板及控制器、电池箱、蓄电池 、气管及安装附件</span><span>、�/span></p><p><strong><span>技术参�?/span></strong></p><p><span>l </span><span>CO</span><sub><span>2</span></sub><span>浓度量程９�/span>0<span>｝�/span><span>3000ppm</span><span>，精度：</span><span>��</span><span>＇�/span><span>1%</span><span>的全量程</span><span>+1.5%</span><span>的度数）：�/span></p><p><span>l </span><span>数据存储时间９�/span>1<span>｝�/span><span>60</span><span>min</span><span>可选；</span></p><p><span>l </span><span>连接呼吸室个数：</span>1<span>｝�/span><span>16</span><span>可选；</span></p><p><span>l </span><span>显示９�/span>LCD<span>液晶显示；内存：标准</span><span>2MB</span><span>，可扩展：�/span></p><p><span>l </span><span>接口９�/span>USB<span>戕�/span><span>RS232</span><span>接口与计算机进行数据通讯：�/span></p><p><span>l </span><span>无线网络：支�?/span>GPRS<span>远程无线传输：�/span></p><p><span>l </span><span>电源电压９�/span>12VDC<span>：�/span></p><p><span>l </span><span>呼吸室尺寸：</span>160mm<span>直径</span><span>��170mm</span><span>高，标准电缆和气管长�?/span><span>5</span><span>米（可根据需要选择）；</span></p><p><span>l </span><span>工作温度９�/span>-20<span>｝�/span><span>60</span><span>ℂ�/span><span>，工作湿度：</span>0<span>｝�/span><span>100%</span><span>（无凝结）、�/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="294431" /> <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）">