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href="http://www.cdcfah.com/cp/third-jxjxysb_qtxyzysb/">其他行業(yè)**設備</a>?四川水下攔截裝備值得信賴保利天同水下裝備供應</p><div id="wsvqadj" class="leftbox clearfix"><h1>四川水下攔截裝備值得信賴保利天同水下裝備供應</h1><div id="1w1i1ba" class="proBig"><div id="uhv9kni" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ynbltt/637478029222364726/4830351.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="h1vyid9" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ynbltt/637478029222364726/4830351.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wnbhgjp" 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>產品關鍵詞：</span>四川水下攔截裝備,水下</p><p><span>***更新：</span>2021-02-02 19:52:39</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="pvfe14j" 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="qlkqt6i" class="page-proshow02"><p class="title">詳細說明</p><div id="qsgqp94" class="box"><p><p style="text-indent:25px"> 聲吶結構分類：被動聲吶。聲吶設計者只能對某預定目標的聲音進行設計，如目標為潛艇，那么目標自身發(fā)出的噪聲包括螺旋槳轉動噪聲、艇體與水流摩擦產生的動水噪聲，以及各種發(fā)動機的機械振動引起的輻射噪聲等。因此被動聲吶（噪音站）與主動聲吶比較根本的區(qū)別在于它在本艦噪聲背景下接收遠場目標發(fā)出的噪聲。此時，目標噪聲作為信號，且經遠距傳播后變得十分微弱。由此可知，被動聲吶往往工作于低信噪比情況下，因而需要采用比主動聲吶更多的信號處理措施。被動聲吶沒有發(fā)射機部分，四川水下攔截裝備?；匾粽?，四川水下攔截裝備、測深儀、通信儀、探雷器等等均可歸入主動聲吶類，而噪音站，四川水下攔截裝備、偵察儀等則歸人被動聲吶類。水聽器陣列裝備生產公司。四川水下攔截裝備</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川水下攔截裝備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478029222364726/4830351.png"></div><p style="text-indent:25px"> 測量水聽器是用作實驗室或工廠的測試標準，進行一般聲學測試或產品檢驗,規(guī)定:靈敏度應大于-210dB(0dB1V/μPa)；用二級標準方法進行校準，低頻段用振動液柱法或密閉腔比較法,高頻段用自由場比較法,其校準準確度低頻段優(yōu)于±1.0dB,高頻段優(yōu)于±1.5dB;靈敏度不均勻性小于±2dB的頻率范圍應至少有三個十倍程以上；水平指向性應是全向的（起伏小于2dB）,垂直指向性給出不少于四個頻率的指向性圖案；動態(tài)范圍應大于60dB；穩(wěn)定性的要求比標準水聽器低一級。云南水下通訊系統(tǒng)設備前視聲吶裝備生產公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川水下攔截裝備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028634991864/2755438.png"></div><p style="text-indent:25px"> 水下定位導航方法：天文導航法。從1959年美國第1艘導彈核潛艇上的“I型”天文導航潛望鏡、1964年7月裝備在“阿諾德將軍號”上的FAST星體定位跟*、“享茨維爾”號測量船上的NAST系統(tǒng)、1970年裝備在超音速運輸機上的LN - 20、1984年在麥克級（MIKE)）核潛艇上安裝的“鰭眼”射電六分儀和光學(天文)定位跟*裝置、1987和1988年對LN- 20的兩次改進，1993年法國凱旋級彈道導彈核潛艇上的M92型光電六分儀，直到1997年開始服役的NAS-27天文導航單元等等，都是天文導航的實際應用。目前，美軍的B-52、FBⅢ、B- 1B、B- 2A、C - 141A、SR-71、俄羅斯的TU-16、TU - 95、TU - 160等都裝有天文導航設備。</p><p> 水聲定位系統(tǒng)——固定式定位跟*系統(tǒng)的水下測量設備大多數(shù)固定在海底，其范圍大、費用高，只能在固定海區(qū)使用；活動式定位跟*系統(tǒng)的全部設備都固定安裝在活動平臺上，試驗時隨活動平臺開往試驗海區(qū)；輕便式定位跟*系統(tǒng)的體積和重量相對較小，可以隨時布放和回收，并可通過飛機、車輛和船只從一個試驗區(qū)運送到另一個試驗區(qū)。這三種水下定位定位跟*系統(tǒng)雖然在結構上有較大差別，但在原理上均是依賴于幾何原理的水聲學定位方法。根據(jù)接收基陣的基線可以將水聲定位技術分為三類：長基線(LongBase-Line)、短基線(ShortBase-Line)、超短基線(UltraShortBase-Line)。水下聲學測速裝備生產公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川水下攔截裝備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028580704624/953509.png"></div><p> 水聲通信國內發(fā)展：我國廈門大學以許克平教授為首的這個課題組出色地完成了國家交給他們的863項目，已經成功解決了在10公里之內水下信號相互清晰的傳遞，他們這個系統(tǒng)已達到實用要求。他們認真分析了世界上抗多途干擾的幾種方法，然后課題組一致認為還是采用電磁波抗干擾的手段——跳頻通信，它既能抗多途徑干擾又能保證信息安全。如果電磁波的跳頻技術用在海中，頻率資源充足的情況下傳輸一組信號，頻率相差大時，電路內部做處理的時候，就用兩個不同頻率表示1和0，相當于顏色相差大，如：赤、橙、黃、綠、青、藍、紫這一組信號就象征一個文字，碰到干擾后雖然到達的時間不一致，但由于顏色的區(qū)別大也就是頻率相差大接收方就容易辨認了，這樣就解決了信號干擾問題。經過攻關他們研制出一個全新的跳頻技術，終于成功解決了多途徑干擾問題。因為語音傳輸是水聲通信比較難攻克的瓶頸問題，要求精確度極高，難度也更大，語音傳輸成功的實現(xiàn)，使這個項目完全成功了，他們做到了。課題組又迎接了新一輪的挑戰(zhàn)，投入遠距離50公里以外的數(shù)字式語音和圖象傳遞，以及數(shù)字式彩色圖象傳遞的工作中。領航者多普勒計程儀生產公司。貴州水下立體監(jiān)控設備</p><p style="text-indent:25px">海洋地震監(jiān)測裝備生產公司。四川水下攔截裝備</p><p style="text-indent:25px">在現(xiàn)代的床墊彈簧機械行業(yè)與其他傳統(tǒng)行業(yè)都存在著一定的通病，比如：創(chuàng)新實踐不足，同質化嚴重，競爭激烈等問題。在**近幾年的床墊行業(yè)市場，我們可以看到看似新產品、新技術等逐漸進入人們的視野，但是其實這些都有限責任公司是圍繞著床墊彈簧機械設備、床墊內芯、床墊面料等這些機械進行著各種包裝。實施轉型升級，優(yōu)化產業(yè)結構調整，增強行業(yè)的活力和后勁，推動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)良產品達成更好的客戶感受和口碑。走出一條更高質量、更具特色、更富活力的可持續(xù)發(fā)展之路，是企業(yè)增強自身競爭能力的需要。實際上，智能技術正在改造著傳統(tǒng)銷售，一些企業(yè)已經開始嘗試部分制造環(huán)節(jié)的智能化。有些企業(yè)雖然沒有大規(guī)模地更換或新上自動化程度較高的成套設備，但通過關鍵環(huán)節(jié)的設備升級，也明顯提高了產品品質和生產效率。作為我國國民經濟的主導產業(yè)，機械及行業(yè)設備業(yè)仍然是我國經濟增長的主要支撐；作為經濟社會發(fā)展的重要依托，機械業(yè)是我國城鎮(zhèn)就業(yè)的主要渠道和國際競爭力的集中體現(xiàn)。四川水下攔截裝備</p><p style="text-indent:25px">云南保利天同水下裝備科技有限公司致力于機械及行業(yè)設備，是一家貿易型公司。保利天同水下裝備致力于為客戶提供良好的水聲通訊設備，水下導航定位設備，水聲圖像設備，水下港口安防設備，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事機械及行業(yè)設備多年，有著創(chuàng)新的設計、強大的技術，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產品及服務。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3128386.html</p></div></div></div></div></div><div id="lqpkn9r" class="page-right twoColRt"><div id="6havqtd" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="bdn9vup" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="1ior1gu" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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