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mr5"></span>行业新闻</a> <ol class="submenu"> <i></i> </ol> </li> </ul> </div> <!--只展开当前栏目所在一级栏目下的分类--> </div> </script></div> <div class="right"> <div class="right1 news_lists"> <div id="content"> <div class="wz_title"><h3>雷达液位计的工作原理</h3></div> <div class="contentinfo pc_show">作者：<a>xpyb</a> 添加时间：2022-04-29 10:37:25 </div> <!-- 正文 --> <p style="text-align:center"><a href="http://www.xipaiyb.com/index.php?case=archive&act=list&catid=53" target="_self"><img src="/cn/upload/images/202204/16512002227173.jpg" title="16512002227173.jpg" alt="11.jpg"/></a></p><p> <span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 18px; background: rgb(255, 255, 255);">雷达通过天线系统发射并接收能量很低的极短的微波脉冲</span><span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 18px; background: rgb(255, 255, 255);">，</span><span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 18px; background: rgb(255, 255, 255);">雷达波以光速运行</span><span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 18px; background: rgb(255, 255, 255);">，</span><span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 18px; background: rgb(255, 255, 255);">运行时间可以通过电子部件被转换成物位信号</span><span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 18px; background: rgb(255, 255, 255);">。</span><span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 18px; background: rgb(255, 255, 255);">一种特殊的时间延伸方法可以确保极短时间内稳定和准确的测量</span><span style="font-family: 微软雅黑; letter-spacing: 0px; font-size: 18px; background: rgb(255, 255, 255);">。</span></p><p><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑"> 即使在工况比较复杂的情况下</span>,会存在虚假回波,用***新的微处理技术和调试软件也可以准确的分析出物位的回波</span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">。</span></span></p><p><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">天线接收反射的微波脉冲并将其传输给电子线路微处理器对此信号进行处理</span>,识别出微脉冲在物料表面所产生的回波</span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">。</span></span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">正确的回波信号识别由智能软件完成</span>,精度可达到毫米级</span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">。</span></span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">距离物料表面的距离</span>D与脉冲的时间行程T成正比:</span></p><p><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"> DCXT/2</span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"> </span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">其中</span>C为光速</span></p><p><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑"> 因空罐的距离</span>E已知,则物位为:L=E-D</span></p><p><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑"> 通过输入空罐高度</span>E(=零点),满罐高度F(满量程)及一些应用参数来设定,应用参数将自动使仪表适应测量环境</span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">。</span></span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">对应于</span>4-20mA输出</span><span style="font-family: 微软雅黑;letter-spacing: 0;font-size: 18px;background: rgb(255, 255, 255)"><span style="font-family:微软雅黑">。</span></span></p><p><br/></p><div class="clear"></div> <div class="blank30"></div> <div class="blank30"></div> 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