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id="874myar" 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>貴州水下聲學(xué)測(cè)速設(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)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="dnfho3i" 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="b8vcu42" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="kogdkev" class="box"><p><p> 水下導(dǎo)航定位，慣性導(dǎo)航：慣性導(dǎo)航是一種自主式的導(dǎo)航方法。它完全依靠機(jī)載設(shè)備自主的完成導(dǎo)航任務(wù)，和外界不發(fā)生任何光、電聯(lián)系，因此隱蔽性好，工作不受氣候條件的限制。這一獨(dú)特的優(yōu)點(diǎn)，對(duì)作為軍*目的而應(yīng)用的各種航行器特別重要。所以近幾十年來(lái)，慣性導(dǎo)航在導(dǎo)彈、艦船、潛艇、水下武器、飛機(jī)、宇宙航行器上都得到了寬泛的應(yīng)用，在導(dǎo)航技術(shù)中占有突出的地位。慣性導(dǎo)航用于水下導(dǎo)航，是通過(guò)將加速度對(duì)時(shí)間兩次積分來(lái)獲得水下潛器的位置，其優(yōu)點(diǎn)是自主性和隱蔽性好。缺點(diǎn)是由于陀螺隨時(shí)間不斷漂移，在長(zhǎng)時(shí)間工作情況下導(dǎo)航定位累積誤差較大。早期的慣導(dǎo)系統(tǒng)復(fù)雜、體積大、能耗高不適合潛水器使用，貴州水下聲學(xué)測(cè)速設(shè)備，現(xiàn)在隨著光纖、激光等新型固態(tài)陀螺技術(shù)的不斷進(jìn)步，為實(shí)現(xiàn)研制體積小、精度高、可靠性好，貴州水下聲學(xué)測(cè)速設(shè)備、能耗與成本指標(biāo)低的INS提供了條件，因此在未來(lái)的自主式潛航器（AUV)上將有可能大量采用這些新型INS，貴州水下聲學(xué)測(cè)速設(shè)備。目前，國(guó)外水下潛器常用的INS主要有:美國(guó)霍尼韋爾公司RL34環(huán)形激光陀螺慣性導(dǎo)航系統(tǒng)、美國(guó)Crossbow公司的微機(jī)械陀螺慣性導(dǎo)航系統(tǒng)等。水域救援裝備生產(chǎn)公司。貴州水下聲學(xué)測(cè)速設(shè)備</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下聲學(xué)測(cè)速設(shè)備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028497179254/3638601.png"></div><p> 由于海底地震活動(dòng)是十分頻繁的，海底地震監(jiān)測(cè)一般采用多點(diǎn)的長(zhǎng)期連續(xù)觀測(cè)，觀測(cè)深度可達(dá)6000米。目前主要在近海和不很深的洋底進(jìn)行觀測(cè),所投放的地震儀器只限于4～5臺(tái)。為了確定震源位置,必須選擇合理的臺(tái)站布置方案。據(jù)理論計(jì)算,海底地震儀的比較好分布方案是：將n-1臺(tái)海底地震儀均勻地放置在圓周上,而第n臺(tái)放于圓心。一般來(lái)說(shuō)，只要不是將地震儀投放在一條直線上，都可以根據(jù)所得到的數(shù)據(jù)求出震源位置。對(duì)于微震的觀測(cè)則應(yīng)注意到它們出現(xiàn)的區(qū)域性，一般應(yīng)部署在洋脊裂谷、轉(zhuǎn)換斷層和海溝附近。四川水下監(jiān)控設(shè)備反蛙聲吶裝備生產(chǎn)公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下聲學(xué)測(cè)速設(shè)備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028634991864/2755438.png"></div><p> 水聽(tīng)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(wú)向、指向、壓電、磁致伸縮、電動(dòng)（動(dòng)圈）等水聽(tīng)器之分。水聽(tīng)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(tīng)器必須有堅(jiān)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(tīng)器探測(cè)水下聲信號(hào)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(tīng)器是水聲測(cè)量中不可少的設(shè)備，是被動(dòng)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(tīng)器可以分為：壓電陶瓷聲壓水聽(tīng)器、PVDF 聲壓水聽(tīng)器、壓電復(fù)合材料聲壓水聽(tīng)器和光纖聲壓水聽(tīng)器。 </p><p> 水下潛器在海洋環(huán)境的探測(cè)與建模、海洋目標(biāo)的水下探測(cè)與識(shí)別、定位與傳輸?shù)确矫娴难芯恐邪l(fā)揮著重要的作用，由于其特殊的任務(wù)要求，需要較長(zhǎng)時(shí)間的潛航和水下待命，從而對(duì)水下導(dǎo)航技術(shù)有較高的要求，高精度的導(dǎo)航定位不只是水下潛器獲取有效信息的必要條件，而且還決定了它是否可以安全作業(yè)及返回，因此，高精度導(dǎo)航定位是研究水下潛器的關(guān)鍵技術(shù)之一。水下導(dǎo)航定位已經(jīng)使現(xiàn)代軍*作戰(zhàn)方式發(fā)生了巨大的變化，引起了各國(guó)軍方的高度重視。水下攔截裝備生產(chǎn)公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州水下聲學(xué)測(cè)速設(shè)備,水下" src="https://tyunfile.71360.com/UploadFile/ynbltt/637478028890480196/7398459.png"></div><p> 海洋環(huán)境噪聲（seaambientnoise）海水的運(yùn)動(dòng)、風(fēng)和大氣對(duì)海面作用的噪聲，水層移動(dòng)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(jiǎn)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(yùn)動(dòng)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(dòng)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(jí)主要由風(fēng)速?zèng)Q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(dòng)力噪聲。深海通數(shù)字通信生產(chǎn)公司。貴州水下設(shè)備</p><p style="text-indent:25px">水下通訊系統(tǒng)裝備生產(chǎn)公司。貴州水下聲學(xué)測(cè)速設(shè)備</p><p> 水聲通信國(guó)內(nèi)發(fā)展：我國(guó)廈門大學(xué)以許克平教授為首的這個(gè)課題組出色地完成了國(guó)家交給他們的863項(xiàng)目，已經(jīng)成功解決了在10公里之內(nèi)水下信號(hào)相互清晰的傳遞，他們這個(gè)系統(tǒng)已達(dá)到實(shí)用要求。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。如果電磁波的跳頻技術(shù)用在海中，頻率資源充足的情況下傳輸一組信號(hào)，頻率相差大時(shí)，電路內(nèi)部做處理的時(shí)候，就用兩個(gè)不同頻率表示1和0，相當(dāng)于顏色相差大，如：赤、橙、黃、綠、青、藍(lán)、紫這一組信號(hào)就象征一個(gè)文字，碰到干擾后雖然到達(dá)的時(shí)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(rèn)了，這樣就解決了信號(hào)干擾問(wèn)題。經(jīng)過(guò)攻關(guān)他們研制出一個(gè)全新的跳頻技術(shù)，終于成功解決了多途徑干擾問(wèn)題。因?yàn)檎Z(yǔ)音傳輸是水聲通信比較難攻克的瓶頸問(wèn)題，要求精確度極高，難度也更大，語(yǔ)音傳輸成功的實(shí)現(xiàn)，使這個(gè)項(xiàng)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(yuǎn)距離50公里以外的數(shù)字式語(yǔ)音和圖象傳遞，以及數(shù)字式彩色圖象傳遞的工作中。貴州水下聲學(xué)測(cè)速設(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(tīng)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/3160582.html</p></div></div></div></div></div><div id="8qis3xs" class="page-right twoColRt"><div id="ty3e3ar" class="box01 margin10 clearfix"><h3><a 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