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target="_blank">手持式測深儀</a>是測量水庫、湖泊、江河、淺海等水體的便攜式測深儀</strong>，測深時將超聲波換能器置于水面或一定位置，利用超聲波在水中的固定聲速VC和超聲波發射到接收的時間，儀器自動換算出水深。<br /> </div><div>　　超聲波收發轉換電路采用大規模集成電路，元件貼片率99%，并以液晶顯示測深結果，保證了產品的長期可靠性，同時將其功耗降到了極低。<br /> </div><div>　　可選信號輸出，彌補了傳統手持產品無輸出的產品不足。具有測量精確、耗電省、可靠性高、使用方便、操作簡單、測量速度準確、攜帶方便等優點。<br /> </div><div>　　儀器可在靜水中測深，也可在具有一定速度的水中測深;水流速度可達5m/秒左右，是水文測驗、水電廠、庫區、湖泊、河道勘測和環境水域監測的理想水深測量儀器。<br /> </div><div>　　超聲波測深儀主要由超聲波換能器和測控裝置兩部分組成。超聲波換能器用于超聲波發射和接收;測控裝置控制儀器發射、接受和對接受數據進行分析處理。<br /> </div><div>　　其工作原理是根據超聲波能在均勻介質中勻速直線傳播，遇不同介質面產生反射的原理設計而成的。<br /> </div><div>　　超聲波測深儀是以水體為超聲波媒介，測深時將超聲波換能器放置于水下一定位置，換能器到水底的深度可以根據超聲波在水中的傳播速度和超聲波信號發射出去到接收回來的時間間隔計算出來。<br /> </div><div>　　超聲波測深儀可在靜水中測深，也可在具有一定速度的水中測深;水流速度可達5m/秒左右，是水文測驗、水電廠、庫區、湖泊、河道勘測和環境水域監測的理想水深測量儀器。<br /> </div><div>　　下面就為您介紹超聲波測深儀的使用注意事項：<br /> </div><div>　　1、手持式測深儀是精密儀器，使用前必須預通電5分鐘以上。只能工作在水中，在空氣中不能工作。<br /> </div><div>　　2、在海水中工作時，需在P1菜單中輸入N值即鹽度值。<br /> </div><div>　　3、超聲波傳感器與儀表電路已匹配，不能互換。為提高儀器的壽命，在野外工作時，請在儀器上方搭遮陽棚，勿將儀器長期置于日曬雨淋的環境中。發射功率不能設定太大、或太小，否則將不能正常工作。<br /> </div><div>　　4、超聲波測深儀都有盲區，在盲區以內顯示的數值是隨機值。<br /> </div><div>　　5、由于超聲波測深儀靈敏度非常高，所以使用時儀器附近不能有太強的噪聲、電磁擾亂。如果水流動量大，溫濕度不在規定范圍內，溫度變化太快及儀器表面結露等情況都會影響儀器穩定性，甚至縮短儀器使用壽命。<br /> </div><div>　　以上就是小編今天為大家帶來的全部內容了，希望能夠對您有所幫助。</div> <div id="news_sx"><li class="sx_left">上一篇：<a href="/Article-731651.html">手持式氣象站可降低農業因氣象災害而造成的農業經濟損失</a> <br />下一篇：<a href="/Article-723174.html">想知道氣象站的功能特點就看看這些吧</a></li></div> </div> </div> </div> </div> <script type="text/javascript"> $(document).ready(function(e) { $(".about_con img").each(function(index, element) { $(this).attr('style', 'max-width:100%'); }); }); </script> <div class="clear"></div>  <div class="ly_foot"> <div class="ft_main"> <div class="ft_contact"> <em>Contact Us</em> <ul> <li><img src="/Skins/69584/images/qq.png" />聯系QQ：295851536</li> <li><img src="/Skins/69584/images/email.png" />聯系郵箱：njshr@163.com</li> <li><img 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