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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pjlnk9s" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028526271005/765235.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="i3dnfoa" 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(guān)鍵詞：</span>貴州水下通訊系統(tǒng)儀器,水下</p><p><span>***更新：</span>2021-02-04 14:37:38</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="rvct8zb" 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(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="3egizij" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="rfceqxu" class="box"><p><p style="text-indent:25px"> 從能量檢測的角度講，矢量水聽器的采用使系統(tǒng)的抗各向同性噪聲的能力獲得提高，并可實現(xiàn)遠(yuǎn)場多目標(biāo)的識別等。矢量水聽器的研究工作受到極大重視。因此，包括矢量信息在內(nèi)的多信息檢測是聲納系統(tǒng)的一個發(fā)展趨勢，正越來越被各個海軍大國所重視。隨著技術(shù)地不斷發(fā)展，技術(shù)需求越來越多，為滿足岸站建設(shè)的需要，服務(wù)海岸預(yù)警聲納系統(tǒng)，實現(xiàn)遠(yuǎn)程檢測、識別，低頻檢測能力日益顯得重要。另外，由于核動力潛艇的出現(xiàn)，潛艇隱身等新技術(shù)的普遍采用，反潛問題受到各國空前的重視。一種有效的方法是轉(zhuǎn)向測試螺旋槳低頻噪聲，安靜型潛艇和艦船的本征噪聲都在低頻段，這就需要低頻段的矢量水聽器。即要求探測換能器具有低頻檢測能力，貴州水下通訊系統(tǒng)儀器。低頻三維空間全向矢量檢測器己成為新的技術(shù)需求，貴州水下通訊系統(tǒng)儀器。這種低頻矢量水聽器的研制成功可以預(yù)期解決遠(yuǎn)程傳播低頻信號的檢測問題。同時，隨著目標(biāo)信號的減弱，貴州水下通訊系統(tǒng)儀器，高靈敏度檢測問題也變得迫切。水聲圖像模塊裝備生產(chǎn)公司。貴州水下通訊系統(tǒng)儀器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下通訊系統(tǒng)儀器,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028526271005/765235.png"></div><p> 海洋環(huán)境噪聲（seaambientnoise）海水的運動、風(fēng)和大氣對海面作用的噪聲，水層移動或融化、海底地質(zhì)構(gòu)造變化、海洋生物發(fā)出的聲響，以及人為的發(fā)生源等噪聲。簡稱海洋噪聲。海洋環(huán)境噪聲噪聲源：海水熱噪聲為海水分子熱運動所產(chǎn)生，是50～200千赫頻段范圍的噪聲的主要組成部分，它的頻譜是隨頻率而增加的上升譜。水動力噪聲主要由海浪、海流、拍岸浪、風(fēng)、雨滴和海水中小氣泡天然空化所產(chǎn)生，它們與海況和風(fēng)速有明顯的關(guān)系。譜級主要由風(fēng)速決定。深海中這部分噪聲的頻譜為0.5～50千赫，斜率為-5～-6分貝/倍頻程。在任何水文氣象條件下，都有水動力噪聲。云南水下無線對講裝備深海通數(shù)字通信生產(chǎn)公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下通訊系統(tǒng)儀器,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478029104386329/3602001.png"></div><p> 水聽器：根據(jù)作用原理、換能原理、特性及構(gòu)造等的不同，有聲壓、振速、無向、指向、壓電、磁致伸縮、電動（動圈）等水聽器之分。水聽器與傳聲器在原理、性能上有很多相似之處，但由于傳聲媒質(zhì)的區(qū)別，水聽器必須有堅固的水密結(jié)構(gòu)，且須采用抗腐蝕材料的不透水電纜等。聲壓水聽器探測水下聲信號以及噪聲聲壓變化并產(chǎn)生和聲壓成比例的電壓輸出。聲壓水聽器是水聲測量中不可少的設(shè)備，是被動聲吶系統(tǒng)中的重要核*部分。根據(jù)所用靈敏材料的不同，聲壓水聽器可以分為：壓電陶瓷聲壓水聽器、PVDF 聲壓水聽器、壓電復(fù)合材料聲壓水聽器和光纖聲壓水聽器。 </p><p style="text-indent:25px"> 海底地震監(jiān)測應(yīng)用現(xiàn)狀，主要應(yīng)用海底地震儀觀測海底天然地震，也可用來觀測人工激發(fā)的地震，但對于人工激發(fā)地震的觀測，目前只限于儀器的研制和試驗性觀測。海底地震儀觀測天然地震或人工地震已經(jīng)被應(yīng)用于幾個方面：①研究大洋洋脊、海盆、海溝等地區(qū)的地震活動和構(gòu)造活動的特點；②通過微震觀測,監(jiān)視大地震的發(fā)生,為地震預(yù)報和海底工程(如海底油田開發(fā))服務(wù);③調(diào)查大陸-大洋過渡帶的地殼結(jié)構(gòu)，揭示板塊俯沖作用的機理；④在廣闊的海洋中進(jìn)行地震觀測，有助于了解地球內(nèi)部構(gòu)造。水下機器人聲吶裝備生產(chǎn)公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下通訊系統(tǒng)儀器,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028952374708/2424064.png"></div><p> 聲吶結(jié)構(gòu)分類：被動聲吶。被動聲吶技術(shù)是指聲吶被動接收艦船等水中目標(biāo)產(chǎn)生的輻射噪聲和水聲設(shè)備發(fā)射的信號，以測定目標(biāo)的方位和距離。它由簡單的水聽器演變而來，它收聽目標(biāo)發(fā)出的噪聲，判斷出目標(biāo)的位置和某些特性，特別適用于不能發(fā)聲暴露自己而又要探測敵艦活動的潛艇。利用接收換能器基陣接收目標(biāo)自身發(fā)出的噪聲或信號來探測目標(biāo)的聲吶稱為被動聲吶。由于被動聲吶本身不發(fā)射信號，所以目標(biāo)將不會覺察聲吶的存在及其意圖。目標(biāo)發(fā)出的聲音及其特征，在聲吶設(shè)計時并不為設(shè)計者所控制，對其了解也往往不多方面。水下緝私聲吶裝備生產(chǎn)公司。貴州水下緝私聲吶設(shè)備</p><p style="text-indent:25px">淺水多波束裝備生產(chǎn)公司。貴州水下通訊系統(tǒng)儀器</p><p> 水聲定位技術(shù)：長基線水聲定位系統(tǒng)的基陣長度在幾公里到幾十公里的量級，利用測量水下目標(biāo)聲源到各個基元間的距離確定目標(biāo)的位置。短基線水聲定位系統(tǒng)的基陣長度一般在幾米到幾十米的量級，利用目標(biāo)發(fā)出的信號到達(dá)接收陣各個基元的時間差，解算目標(biāo)的方位和距離。超短基線定位系統(tǒng)的基陣長度一般在幾個厘米到幾十厘米的量級，它與前兩種不同，利用各個基元接收信號間的相位差來解算目標(biāo)的方位和距離。若按照工作方式來劃分，以上三種定位系統(tǒng)都可以選擇使用同步信標(biāo)工作方式或應(yīng)答器工作方式。采用同步信標(biāo)工作方式，要求在待測目標(biāo)或測量船上都安裝高精度同步時鐘系統(tǒng)，信標(biāo)按規(guī)定的時刻定時發(fā)射信號，并據(jù)此確定目標(biāo)位置。應(yīng)答器工作方式要求在應(yīng)答和測量船上都安裝詢問(應(yīng)答)發(fā)射機和接收機。貴州水下通訊系統(tǒng)儀器</p><p style="text-indent:25px">云南保利天同水下裝備科技有限公司位于西山區(qū)環(huán)城西路368號華海新境界B坐22樓，交通便利，環(huán)境優(yōu)美，是一家貿(mào)易型企業(yè)。保利天同水下裝備是一家有限責(zé)任公司企業(yè)，一直“以人為本，服務(wù)于社會”的經(jīng)營理念;“誠守信譽，持續(xù)發(fā)展”的質(zhì)量方針。公司業(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，價格合理，品質(zhì)有保證，深受廣大客戶的歡迎。保利天同水下裝備自成立以來，一直堅持走正規(guī)化、專業(yè)化路線，得到了廣大客戶及社會各界的普遍認(rèn)可與大力支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3161082.html</p></div></div></div></div></div><div id="x8moax8" class="page-right twoColRt"><div id="h77gsuo" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="z7md7u8" 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(yīng)" 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(yīng)</p></a></div><div id="8kreg77" 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