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class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028412892447/3651396.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="m7szgie" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(guān)鍵詞：</span>四川水下監(jiān)控設(shè)備,水下</p><p><span>***更新：</span>2021-02-04 12:35:16</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ux7movx" 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(jī): </span>0871-63578309</p><p><span>地址: </span>西山區(qū)環(huán)城西路368號(hào)華海新境界B坐22樓</p><p>[當(dāng)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="ospwtfh" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="edfm2ao" class="box"><p><p> 聲吶（利用聲波進(jìn)行水下探測(cè)的技術(shù)或設(shè)備），聲吶也作聲納，是英文縮寫“SONAR”的中文音譯（中國(guó)科技名詞審定委*會(huì)公布的規(guī)范譯名為聲吶），其全稱為：SoundNavigationAndRanging（聲音導(dǎo)航與測(cè)距），是利用聲波在水中的傳播和反射特性，通過(guò)電聲轉(zhuǎn)換和信息處理進(jìn)行導(dǎo)航和測(cè)距的技術(shù)，四川水下監(jiān)控設(shè)備，也指利用這種技術(shù)對(duì)水下目標(biāo)進(jìn)行探測(cè)（存在、位置、性質(zhì)、運(yùn)動(dòng)方向等）和通訊的電子設(shè)備，是水聲學(xué)中應(yīng)用較全、比較重要的一種裝置，有主動(dòng)式和被動(dòng)式兩種類型，四川水下監(jiān)控設(shè)備。聲吶是一種聲學(xué)探測(cè)設(shè)備，主動(dòng)式聲吶是在英國(guó)首先投入使用的，四川水下監(jiān)控設(shè)備，不過(guò)英國(guó)人把這種設(shè)備稱為"ASDIC"（潛艇探測(cè)器）。遠(yuǎn)距離探測(cè)聲吶裝備生產(chǎn)公司。四川水下監(jiān)控設(shè)備</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川水下監(jiān)控設(shè)備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028412892447/3651396.png"></div><p> 海底地震監(jiān)測(cè)觀測(cè)儀器由于海水對(duì)聲波傳播的限制，利用一般的地震測(cè)量技術(shù)，人們往往無(wú)法有效地、經(jīng)濟(jì)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(cè)這一新技術(shù)。海底地震監(jiān)測(cè)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(jìn)行全自動(dòng)記錄，借助浮標(biāo)和系留系統(tǒng)或自動(dòng)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(jiān)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(cè)目的,選擇短周期和長(zhǎng)周期的檢波器來(lái)分別測(cè)定適當(dāng)?shù)念l率范圍。貴州水下導(dǎo)航定位裝備水下搜索裝備生產(chǎn)公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川水下監(jiān)控設(shè)備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028497179254/3638601.png"></div><p> 水聲通信發(fā)展情況：這是國(guó)際上高水平的技術(shù)，在遠(yuǎn)距離水里能清楚地接收到語(yǔ)音信號(hào)，世界上也只有極少數(shù)軍使用水聲通訊的蛟龍?zhí)柺聫?qiáng)國(guó)才能做到。水聲通信機(jī)使用的是模擬信號(hào)，可是海洋中的波浪、魚類、艦船等產(chǎn)生噪聲，使海洋中的聲場(chǎng)極為混亂，聲波在海水中傳遞時(shí)產(chǎn)生“多途徑干擾信號(hào)”這一較大的難題，導(dǎo)致接收到的信號(hào)模糊不清。半個(gè)世紀(jì)以來(lái)，水聲領(lǐng)域的**對(duì)這一難題一直束手無(wú)策，老式的模擬水聲通信機(jī)一直沿用至今。由于數(shù)字通信的產(chǎn)生，陸地上的信號(hào)干擾被成功解決，水聲領(lǐng)域的**也開始了在該領(lǐng)域進(jìn)行探索。他們認(rèn)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(rèn)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。因?yàn)楹Ｋ煞趾軓?fù)雜，所以聲波傳遞時(shí)就被吸收了一部分，而且頻率越高吸收就越厲害，對(duì)于頻率低的聲波海水反而吸收少。**測(cè)得結(jié)果，聲波頻率在4000赫茲左右為遠(yuǎn)距離傳遞的較佳頻率，而用4000赫茲的頻率去實(shí)現(xiàn)跳頻通信，頻點(diǎn)與頻點(diǎn)之間的距離就很小了。 </p><p> 聲學(xué)導(dǎo)航定位：水聲導(dǎo)航是在聲納和無(wú)線電導(dǎo)航的綜合技術(shù)基礎(chǔ)上發(fā)展起來(lái)的導(dǎo)航技術(shù)。水聲定位系統(tǒng)具有多個(gè)基元，基元一般為接收儀器或應(yīng)答器，基元間連線稱為基線，根據(jù)基線長(zhǎng)度可分<span style="display:none;"></span>為長(zhǎng)基線系統(tǒng)、短基線系統(tǒng)和超短基線系統(tǒng)。這三種系統(tǒng)導(dǎo)航都需事先在海域布放換能器或換能器陣以實(shí)現(xiàn)聲學(xué)導(dǎo)航。換能器（或換能器陣）聲源（信標(biāo)或應(yīng)答器）發(fā)出的脈沖被一個(gè)或多個(gè)設(shè)在母船上的聲學(xué)傳感器接收，收到的脈沖信號(hào)經(jīng)過(guò)處理和按預(yù)定的數(shù)學(xué)模型進(jìn)行計(jì)算就可以得到聲源的位置。無(wú)人船避障聲吶裝備生產(chǎn)公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川水下監(jiān)控設(shè)備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028634991864/2755438.png"></div><p> 海洋環(huán)境噪聲噪聲源：冰下噪聲與冰原的移動(dòng)和振動(dòng)、冰塊的破裂、浮冰群的積成、吹過(guò)冰表面的渦旋氣流的不平穩(wěn)性及氣溫變化等因素有關(guān)。此外，冰山離開極地向較暖海面浮動(dòng)時(shí)，還產(chǎn)生冰山融化的噪聲。當(dāng)冰不連成一片，且成碎塊狀時(shí)，在同樣的海況下，冰下噪聲的功率譜級(jí)比無(wú)冰時(shí)高5～10分貝。生物噪聲海中能發(fā)聲的生物有甲殼類、魚類和海生哺乳類動(dòng)物（鯨、海豚）。它們發(fā)出的聲響是多種多樣的（見海洋生物發(fā)聲）。甲殼類中以螯蝦為主，它們用螯相互撞擊作響。魚類中能夠發(fā)聲的甚多，如北美的叫魚，發(fā)出叩擊般的間斷噪聲序列；中國(guó)黃海和東海的大黃魚和小黃魚，發(fā)出500～5000赫的咕咕聲；海豚在各種不同的生態(tài)發(fā)出不同的調(diào)頻嘯聲，在尋找目標(biāo)時(shí)發(fā)出短促的脈沖聲。遠(yuǎn)處航船動(dòng)力裝置傳來(lái)的水下噪聲其頻譜約為10赫至1千赫。極低頻噪聲由地震、海底火山爆發(fā)、微地震、大尺度湍流和遙遠(yuǎn)的風(fēng)暴所產(chǎn)生，頻率為1～10赫。要用水聽器準(zhǔn)確測(cè)定周圍的海洋自然噪聲，必須設(shè)法消除或盡量減輕所有干擾，如懸掛水聽器電纜搖擺振動(dòng)引起的噪聲，水流過(guò)水聽器表面產(chǎn)生的附加噪聲等。為此，多方面采用海底深水寬帶水聽器陣來(lái)測(cè)量自然噪聲場(chǎng)。海底鷹裝備生產(chǎn)公司。四川水下核電水下安防設(shè)備</p><p style="text-indent:25px">前視聲吶裝備生產(chǎn)公司。四川水下監(jiān)控設(shè)備</p><p> 水聲定位系統(tǒng)使用水下聲標(biāo)測(cè)定艦船或其他目標(biāo)相對(duì)位置的海上定位技術(shù)和方法。目前，在水下進(jìn)行定位和導(dǎo)航比較常見的方法就是聲學(xué)方法。聲學(xué)定位技術(shù)是利用水聲設(shè)備對(duì)已知目標(biāo)在一個(gè)特定的時(shí)間和空間中進(jìn)行定位的技術(shù)，即確定目標(biāo)(如船只)的方位和距離。自從1912年在美國(guó)出現(xiàn)了第1臺(tái)水聲測(cè)深儀以后，開始有了水聲助航設(shè)備。二戰(zhàn)中，對(duì)水下目標(biāo)的探測(cè)和測(cè)量受到了重視，并在戰(zhàn)后得到了迅速的發(fā)展。1958年，美國(guó)華盛頓大學(xué)應(yīng)用物理實(shí)驗(yàn)室在達(dá)波灣建成了三維坐標(biāo)定位跟*水下武器靶場(chǎng)。這種水下定位定位跟*技術(shù)在六十年代后期得到廣泛應(yīng)用，成為魚雷靶場(chǎng)的主要測(cè)試方法。迄今為止，國(guó)內(nèi)外水下武器靶場(chǎng)使用的水下定位定位跟*系統(tǒng)有多種類型，按其安裝方式可分為固定式定位跟*系統(tǒng)、活動(dòng)式(船載)定位跟*系統(tǒng)和輕便式定位跟*系統(tǒng)。四川水下監(jiān)控設(shè)備</p><p style="text-indent:25px">云南保利天同水下裝備科技有限公司辦公設(shè)施齊全，辦公環(huán)境優(yōu)越，為員工打造良好的辦公環(huán)境。專業(yè)的團(tuán)隊(duì)大多數(shù)員工都有多年工作經(jīng)驗(yàn)，熟悉行業(yè)專業(yè)知識(shí)技能，致力于發(fā)展保利天同,保利水下,海底鷹,標(biāo)準(zhǔn)水聽器,水聲通訊,水下導(dǎo)航定位,水聲圖像,水下港口安防的品牌。公司以用心服務(wù)為重點(diǎn)價(jià)值，希望通過(guò)我們的專業(yè)水平和不懈努力，將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(guó)家高新技術(shù)企業(yè)，公司2002年成立以來(lái)，發(fā)揮雄厚的研發(fā)優(yōu)勢(shì)，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(jī)、小型化高精度多譜勒計(jì)程議/ADCP及水下組合導(dǎo)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(jià)值，世界因你而不同。公司愿景：用專注、持續(xù)改進(jìn)的優(yōu)良產(chǎn)品達(dá)成更好的客戶感受和口碑。等業(yè)務(wù)進(jìn)行到底。云南保利天同水下裝備科技有限公司主營(yíng)業(yè)務(wù)涵蓋水聲通訊設(shè)備，水下導(dǎo)航定位設(shè)備，水聲圖像設(shè)備，水下港口安防設(shè)備，堅(jiān)持“質(zhì)量保證、良好服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3160584.html</p></div></div></div></div></div><div id="fzbn3yf" class="page-right twoColRt"><div id="3wy7npb" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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