常州全自動藍(lán)牙頻率校準(zhǔn) 深圳市小牛測控供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="便攜藍(lán)牙頻率校準(zhǔn)使用方法，具有的明顯缺點：1)、需要使用頻譜儀或藍(lán)牙信號綜合測試儀等高昂測試設(shè)備才能進(jìn)行測試，而這些設(shè)備成本高昂，從而導(dǎo)致藍(lán)牙模組測試成本提高。2)、藍(lán)牙頻偏調(diào)節(jié)方法及裝置，提高了藍(lán)牙頻偏調(diào)節(jié)效率。因被測試的信號直接為2.4"><meta name="keywords" content="常州全自動藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_smdn/">數(shù)碼、電腦</a>?<a href="http://www.cdcfah.com/cp/second-smdn_sjpjgd/">手機配件</a>?<a href="http://www.cdcfah.com/cp/third-sjpjgd_lyspq/">藍(lán)牙適配器</a>?常州全自動藍(lán)牙頻率校準(zhǔn) 深圳市小牛測控供應(yīng)</p><div id="smoqhtk" class="leftbox clearfix"><h1>常州全自動藍(lán)牙頻率校準(zhǔn) 深圳市小牛測控供應(yīng)</h1><div id="apms8f9" class="proBig"><div id="rv3whul" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059155507813/797469.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hwlczgd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059155507813/797469.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vk83q2v" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>常州全自動藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)</p><p><span>***更新：</span>2021-02-03 13:15:12</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="3kh3d28" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市小牛測控技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>陳先生</p><p><span>郵箱: </span>403310010@qq.com</p><p><span>電話: </span>13420972963</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>https://www.iodm.cn</p><p><span>手機: </span>0755-21008225</p><p><span>地址: </span>深圳市龍華區(qū)東環(huán)二路69號慧華園廠房1棟411</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="gkj32oi" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="gaxels3" class="box"><p><p style="text-indent:25px">便攜藍(lán)牙頻率校準(zhǔn)使用方法，具有的明顯缺點：1)、需要使用頻譜儀或藍(lán)牙信號綜合測試儀等高昂測試設(shè)備才能進(jìn)行測試，而這些設(shè)備成本高昂，從而導(dǎo)致藍(lán)牙模組測試成本提高。2)、藍(lán)牙頻偏調(diào)節(jié)方法及裝置，提高了藍(lán)牙頻偏調(diào)節(jié)效率。因被測試的信號直接為2.4G RF信號，而空氣中彌漫著大量的2.4G干擾信號。這些干擾信號將影響校準(zhǔn)與測試過程，上海便攜藍(lán)牙頻率校準(zhǔn)使用方法，上海便攜藍(lán)牙頻率校準(zhǔn)使用方法，從而導(dǎo)致測試效率嚴(yán)重偏低，且影響測試準(zhǔn)確性。而如果在完全屏蔽的房間內(nèi)測試，常州全自動藍(lán)牙頻率校準(zhǔn)，常州全自動藍(lán)牙頻率校準(zhǔn)，常州全自動藍(lán)牙頻率校準(zhǔn)，又將導(dǎo)致測試成本提高。藍(lán)牙頻率頻道帶寬和速率：藍(lán)牙的頻道帶寬只有1M或2M（BLE版本）。藍(lán)牙頻率測試校準(zhǔn)裝置，其特征在于裝置由藍(lán)牙PCBA測試板。常州全自動藍(lán)牙頻率校準(zhǔn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州全自動藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059155507813/797469.png"></div><p style="text-indent:25px">藍(lán)牙測試及校準(zhǔn)裝置工作流程說明如下：A)、藍(lán)牙PCBA測試板上電，并進(jìn)行初始化。B)、判斷按鍵是否按下，如果按鍵按下，開始對待測藍(lán)牙模組進(jìn)行頻偏測試與校準(zhǔn)；否則，等待按鍵按下。C)、按鍵按下后，對待測藍(lán)牙模組DUT進(jìn)行上電，開始測試與校準(zhǔn)過程。D)、通過調(diào)試接口，配置DUT輸出PWM方波，該方波頻率為500Hz。E)、為了頻率穩(wěn)定性，去掉開始輸出的5個周期PWM方波，對接下來的100個周期PWM方波進(jìn)行測試，并對該100個方波周期進(jìn)行平均處理，計算出PWM方波的平均頻率。F)、判斷該PWM方波頻率是否在標(biāo)準(zhǔn)范圍內(nèi)，如果在標(biāo)準(zhǔn)范圍內(nèi)，跳轉(zhuǎn)至步驟G)；否則通過調(diào)試接口，調(diào)整藍(lán)牙芯片內(nèi)可調(diào)電容，并跳轉(zhuǎn)至步驟E)。G)、藍(lán)牙PCBA測試板使用BLE連接測試模塊，發(fā)起B(yǎng)LE連接，與待測藍(lán)牙模組DUT建立藍(lán)牙連接，并搜索藍(lán)牙服務(wù)。常州全自動藍(lán)牙頻率校準(zhǔn)鏈路管理實現(xiàn)了鏈路建立、連接和拆除的控制。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州全自動藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059343349610/454652.png"></div><p style="text-indent:25px">iODM T2功能描述：1、測試藍(lán)牙PCBA射頻、電流、功能、音頻回路等功能一站式測試；2、一拖二雙工位測試自動判定成功/失敗，節(jié)省拿放時間；3、兼容安捷倫N4010A/安立MT8852（測試時間15S內(nèi)）；4、自動保存excel報表，方便追蹤管理；5、iODM專有防毒技術(shù)，擺脫其他困擾；6、定制化UI+自動化軟件，讓操作更加簡潔，高效；7、多用戶，多項目管理更加人性化；8、人體工程學(xué)的操作臺，員工操作舒適便捷不易疲勞；9、內(nèi)置UPS不間斷電源及漏電保護插頭讓測試更安全；10、支持掃描槍，掃描二維碼改地址；產(chǎn)品清單：1、iODM工業(yè)電腦主機；2、iODM工業(yè)顯示器；3、射頻屏蔽箱；4、人體工程學(xué)操作臺；5、UPS不間斷電源；6、安捷倫N4010A（可選配MT8852B）；7、高性能天線耦合器；8、高性能射頻信號線材；9、可編程電源；10、自動化測試軟件（可開發(fā)定制）；</p><p style="text-indent:25px">藍(lán)牙使用的是跳頻擴譜方式，一般每秒鐘跳變1650次，將83.5MHz的頻帶劃分至79個頻帶信道，而每個時刻只占1MHz的帶寬。WIFI所使用的連接協(xié)議是IEEE802.11b局域網(wǎng)協(xié)議，WIFI的傳輸范圍是120米，傳輸速度大可以達(dá)到11Mbps，使用的是直序列擴頻和QPSK或BPSK，上下帶寬是22MHz。藍(lán)牙的設(shè)計初衷是替代RS232電纜連接計算機外設(shè)，現(xiàn)在已經(jīng)普遍用在形形**的電子設(shè)備上實現(xiàn)短距離的無線連接，替代了我們的耳機線，手機數(shù)據(jù)線，鍵盤鼠標(biāo)線（藍(lán)牙鍵盤鼠標(biāo)），打印機數(shù)據(jù)線等等。頻率：藍(lán)牙的工作頻率只有2.4Ghz，和Wi-Fi的2.4G頻段一樣。但Wi-Fi還有其他頻率如5G/60G等。藍(lán)牙設(shè)備和其他的無線設(shè)備一樣，都是通過傳輸協(xié)議獲取數(shù)據(jù)，然后利用數(shù)據(jù)進(jìn)行工作。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州全自動藍(lán)牙頻率校準(zhǔn),藍(lán)牙頻率校準(zhǔn)" src="https://tyunfile.71360.com/UploadFile/xiaoniucekong/637304059611699219/6753670.png"></div><p style="text-indent:25px">藍(lán)牙射頻校準(zhǔn)的測試方法，其特征在于，所述調(diào)制頻偏模塊包含下面步驟在手機進(jìn)入測試模式之后，判斷是否已有調(diào)制頻偏通過的手機；如果沒有，讀取手機中藍(lán)牙調(diào)制頻偏的DAC值作為調(diào)整的初始值；如果有，將統(tǒng)計到的已經(jīng)通過調(diào)制頻偏的DAC值作為調(diào)整的初始值；手機進(jìn)入藍(lán)牙測試^^莫式；將手機的藍(lán)牙和綜測儀藍(lán)牙進(jìn)行連接；設(shè)置綜測儀；用測試軟件調(diào)整手機中的調(diào)制頻偏，判斷調(diào)制頻偏是否合格；如果合格，將合格的調(diào)制頻偏的DAC值存儲并與以前所有合格的DAC值進(jìn)行統(tǒng)計計算，得到下一次調(diào)制頻偏的初始DAC值；如果不合格，斷開手機藍(lán)牙與綜測儀的連接，回到手機進(jìn)入藍(lán)牙測試模式步驟。較窄的頻道帶寬限制的藍(lán)牙頻率的傳輸速率。常州全自動藍(lán)牙頻率校準(zhǔn)</p><p style="text-indent:25px">藍(lán)牙BT射頻阻塞特性是指在其它頻段存在大的干擾信號時，接收機接收有用信號的能力。常州全自動藍(lán)牙頻率校準(zhǔn)</p><p style="text-indent:25px">藍(lán)牙技術(shù)系統(tǒng)構(gòu)成中的中間協(xié)議層主要包括了服務(wù)發(fā)現(xiàn)協(xié)議、邏輯鏈路控制和適應(yīng)協(xié)議、電話通信協(xié)議和串口仿真協(xié)議四個部分。服務(wù)發(fā)現(xiàn)協(xié)議層的作用是提供上層應(yīng)用程序一種機制以便于使用網(wǎng)絡(luò)中的服務(wù)。邏輯鏈路控制和適應(yīng)協(xié)議是負(fù)責(zé)數(shù)據(jù)拆裝、復(fù)用協(xié)議和控制服務(wù)質(zhì)量，是其他協(xié)議層作用實現(xiàn)的基礎(chǔ)。在藍(lán)牙技術(shù)構(gòu)成系統(tǒng)中，高層應(yīng)用是位于協(xié)議層上部的框架部分。藍(lán)牙技術(shù)的高層應(yīng)用主要有文件傳輸、網(wǎng)絡(luò)、局域網(wǎng)訪問。不同種類的高層應(yīng)用是通過相應(yīng)的應(yīng)用程序通過一定的應(yīng)用模式實現(xiàn)的一種無線通信。常州全自動藍(lán)牙頻率校準(zhǔn)</p><p style="text-indent:25px">深圳市小牛測控技術(shù)有限公司致力于儀器儀表，以科技創(chuàng)新實現(xiàn)***管理的追求。小牛測控深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的藍(lán)牙測試設(shè)備，藍(lán)牙燒錄設(shè)備，藍(lán)牙RF測試，電流測試設(shè)備。小牛測控不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。小牛測控創(chuàng)始人李利，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3144473.html</p></div></div></div></div></div><div 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