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id="3tikwsz" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ynbltt/637478029006837375/6670506.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vzlnpg7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ynbltt/637478029006837375/6670506.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qzgs8ta" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>云南省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>貴州水下導航定位設備,水下</p><p><span>***更新：</span>2021-02-05 07:21:40</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="b39i4xz" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南保利天同水下裝備科技有限公司</a></p><p><span>聯(lián)系人：</span>肖力夫</p><p><span>郵箱: </span>453901470@qq.com</p><p><span>電話: </span>18206796670</p><p><span>傳真: </span>0871_63578309</p><p><span>網(wǎng)址: </span>http://ynbltt.shop.88360.com</p><p><span>手機: </span>0871-63578309</p><p><span>地址: </span>西山區(qū)環(huán)城西路368號華海新境界B坐22樓</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="shewab3" class="page-proshow02"><p class="title">詳細說明</p><div id="vo3poub" class="box"><p><p> 海底地震監(jiān)測觀測方法：海底地震儀投放、回收或觀測采用的方式主要有三種：①錨定浮標式，用尼龍纜繩將地震儀與浮標連接起來，便于尋找回收。用這一方式可進行多點觀測,但纜繩容易帶來干擾。②自由下落自動升浮式,將海底地震儀同帶有分離裝置的錨連接好，投入海中后自由下落海底，預定的觀測時間一過，儀器內(nèi)的定時器或船上發(fā)出的信號指令使儀器與錨自動分離,升浮海面,打撈回收。此裝置結(jié)構(gòu)復雜而沉重，貴州水下導航定位設備。③海底電纜式，用海底電纜把海底地震儀和陸上觀測站連接起來進行半永久的觀測，海底電纜起到數(shù)據(jù)傳輸、遙控，貴州水下導航定位設備，貴州水下導航定位設備、電力供給的作用。此法只能用于離岸較近的淺海地區(qū)。核電水下安防裝備生產(chǎn)公司。貴州水下導航定位設備</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下導航定位設備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478029006837375/6670506.png"></div><p style="text-indent:25px"> 中國的國家標準GB4128-84《標準水聽器》中規(guī)定了用于1Hz～100kHz的壓電型標準水聽器的主要性能參量和技術指標。根據(jù)使用目的和校準準確度分成兩級：標準水聽器(一級)和測量水聽器(二級)。標準水聽器是用作實驗室標準,進行量值傳遞及作精密的聲學測量,規(guī)定:靈敏度應大于-205dB(0dB1V/µPa)；用一級標準方法進行校準,低頻段用耦合腔互易法和壓電補償法,高頻段用自由場互易法；其準確度低頻段優(yōu)于±0.5dB,高頻段優(yōu)于±0.7dB；靈敏度頻響不均勻性小于±1.5dB的范圍要求大于三個十倍程;其水平和垂直指向性均以－3dB波束寬度來衡量，分別為大于30°和15°；動態(tài)范圍應大于60dB；對溫度、靜壓和時間的穩(wěn)定性也都有一定的要求。四川水下避障設備水下安防裝備生產(chǎn)公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下導航定位設備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028497179254/3638601.png"></div><p> 海底地震監(jiān)測是指用專門設計的地震儀投放于海洋底來觀測海洋底的地震現(xiàn)象，確定震源參數(shù)，以研究海洋底地震活動規(guī)律并作地質(zhì)構(gòu)造分析的一種海洋地震測量新方法。由于地震頻率范圍變化很大，因此要求根據(jù)不同的觀測目的，選擇短周期和長周期的檢波器來分別測定適當?shù)念l率范圍。用專門設計的地震儀投放于海洋底來觀測海洋底的地震現(xiàn)象，確定震源參數(shù)，以研究海洋底地震活動規(guī)律并作地質(zhì)構(gòu)造分析的<span style="display:none;"></span>一種海洋地震測量新方法。早在1937～1940年間，美國W.M.尤因等就進行過海底地震監(jiān)測的嘗試，但直到60年代以后，此項觀測技術才隨深海大洋調(diào)查的發(fā)展而得到采用。 </p><p> 海底地震監(jiān)測觀測儀器由于海水對聲波傳播的限制，利用一般的地震測量技術，人們往往無法有效地、經(jīng)濟地接收到一些重要的地震信息，如橫波及其頻散信息、三分量的地震信息等，因此產(chǎn)生了海底地震監(jiān)測這一新技術。海底地震監(jiān)測的主要儀器是海底地震儀。它的主體包括拾震器(亦稱傳感器、地震檢波器)、放大器、記錄器、石英鐘和電源等。儀器主體被密封在耐壓容器中，放置海底進行全自動記錄，借助浮標和系留系統(tǒng)或自動控制系統(tǒng)升浮而回收。海底地震儀采用可變線圈型電磁式結(jié)構(gòu)。它的體積小，比較堅固，有良好的水密性。由于地震頻率范圍變化很大,因此要求根據(jù)不同的觀測目的,選擇短周期和長周期的檢波器來分別測定適當?shù)念l率范圍。海底鷹裝備生產(chǎn)公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下導航定位設備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028481856924/4208986.png"></div><p> 聲吶結(jié)構(gòu)分類：結(jié)構(gòu)聲吶裝置一般由基陣、電子機柜和輔助設備三部分組成?；囉伤晸Q能器以一定幾何圖形排列組合而成，其外形通常為球形、柱形、平板形或線列行，有接收基陣、發(fā)射機陣或收發(fā)合一基陣之分。電子機柜一般有發(fā)射、接收、顯示和控制等分系統(tǒng)。輔助設備包括電源設備、連接電纜、水下接線箱和增音機、與聲吶基陣的傳動控制相配套的升降、回轉(zhuǎn)、俯仰、收放、拖曳、吊放、投放等裝置，以及聲吶導流罩等。換能器是聲吶中的重要器件，它是聲能與其它形式的能如機械能、電能、磁能等相互轉(zhuǎn)換的裝置。它有兩個用途：一是在水下發(fā)射聲波，稱為“發(fā)射換能器”，相當于空氣中的揚聲器；二是在水下接收聲波，稱為“接收換能器”，相當于空氣中的傳聲器（俗稱“聽筒”）。換能器在實際使用時往往同時用于發(fā)射和接收聲波，專門用于接收的換能器又稱為“水聽器”。換能器的工作原理是利用某些材料在電場或磁場的作用下發(fā)生伸縮的壓電效應或磁致伸縮效應。 HDY-240裝備生產(chǎn)公司。貴州水下攔截裝備</p><p style="text-indent:25px">海底鷹前視圖像聲吶設備生產(chǎn)公司。貴州水下導航定位設備</p><p> 海洋環(huán)境噪聲源：由于水下噪聲場有指向性，故場的時空相關特性的研究十分重要。在海底設置的水聽器陣測得的0°～90°間的環(huán)境噪聲指向性圖。以頻率為112Hz的噪聲為例，在海面風速達蒲氏風級4級以上時，沿水平方向傳播的聲壓譜級N(0)在-30與-40之間；沿著與水平面成θ角的方向傳播的聲壓譜級N(θ)都小于N(0)。但對于頻率為1414Hz的噪聲來說,θ越大，N(θ)越小。由此可知，極遠處的低頻噪聲通過水平路徑傳播，而高頻噪聲則大多數(shù)從海面?zhèn)鞑サ浇邮贞?。深海噪聲場大量的實測數(shù)據(jù)表明，深海的環(huán)境噪聲譜相當穩(wěn)定。在深海中不同風速和不同海況下測得的，1赫～100千赫的海洋環(huán)境噪聲綜合數(shù)據(jù)繪制的典型連續(xù)譜。貴州水下導航定位設備</p><p style="text-indent:25px">云南保利天同水下裝備科技有限公司總部位于西山區(qū)環(huán)城西路368號華海新境界B坐22樓，是一家保利天同水下裝備科技有限公司：是以水下裝備為發(fā)展方向的國家高新技術企業(yè)，公司2002年成立以來，發(fā)揮雄厚的研發(fā)優(yōu)勢，研發(fā)了包括超高分辨率水下圖像聲吶、小尺寸高波特率水聲通信機、小型化高精度多譜勒計程議/ADCP及水下組合導航系統(tǒng)、港口智能安防系統(tǒng)等水下裝備。公司使命：帶給人們價值，世界因你而不同。公司愿景：用專注、持續(xù)改進的優(yōu)良產(chǎn)品達成更好的客戶感受和口碑。的公司。保利天同水下裝備擁有一支經(jīng)驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供水聲通訊設備，水下導航定位設備，水聲圖像設備，水下港口安防設備。保利天同水下裝備繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關鍵領域，實現(xiàn)轉(zhuǎn)型再突破。保利天同水下裝備始終關注自身，在風云變化的時代，對自身的建設毫不懈怠，高度的專注與執(zhí)著使保利天同水下裝備在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3172565.html</p></div></div></div></div></div><div id="sbiulxy" class="page-right twoColRt"><div id="yrikr3x" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ywdpgno" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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