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上海磐笙電子科技供應(yīng)</h1><div id="dhjl3ip" class="proBig"><div id="39cewdf" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502782919922/9722951.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8ot8oik" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502782919922/9722951.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xgdsjqx" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊,433M無(wú)線(xiàn)通訊模塊</p><p><span>***更新：</span>2021-01-21 08:11:35</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nwt3odu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海磐笙電子科技有限公司</a></p><p><span>聯(lián)系人：</span>丁白蘭</p><p><span>郵箱: </span>258787059@qq.com</p><p><span>電話(huà): </span>15002148001</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.panshion.cn</p><p><span>手機(jī): </span>021-31775145</p><p><span>地址: </span>羅城路530號(hào)住大商務(wù)樓A樓403室</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="7t8q3sk" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="hwyizb8" class="box"><p><p style="text-indent:25px">433m無(wú)線(xiàn)模塊的模塊自身輻射極小，加上電路模塊背面網(wǎng)狀接地銅箔的屏蔽作用，可以減少自身振蕩的泄漏和外界干擾信號(hào)的侵入。采用帶骨架的銅芯電感將頻率調(diào)整到315M后封固，這與采用可調(diào)電容調(diào)整接收頻率的電路相比，溫度、濕度穩(wěn)定性及抗機(jī)械振動(dòng)性能都有極大改善。可調(diào)電容調(diào)整精度較低，只有3/4圈的調(diào)整范圍，而可調(diào)電感可以做到多圈調(diào)整。可調(diào)電容調(diào)整完畢后無(wú)法封固，因?yàn)闊o(wú)論導(dǎo)體還是絕緣體，各種介質(zhì)的靠近或侵入都會(huì)使電容的容量發(fā)生變化，進(jìn)而影響接收頻率。另外未經(jīng)封固的可調(diào)電容在受到振動(dòng)時(shí)定片和動(dòng)片之間發(fā)生位移；溫度變化時(shí)熱脹冷縮會(huì)使定片和動(dòng)片間距離改變；濕度變化因介質(zhì)變化改變?nèi)萘?；長(zhǎng)期工作在潮濕環(huán)境中還會(huì)因定片和動(dòng)片的氧化改變?nèi)萘浚@些都會(huì)嚴(yán)重影響接收頻率的穩(wěn)定性，西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊，而采用可調(diào)電感就可解決這些問(wèn)題，因?yàn)殡姼锌梢栽谡{(diào)整完畢后進(jìn)行封固，絕緣體封固劑不會(huì)使電感量發(fā)生變化，西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊，西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊。無(wú)線(xiàn)收發(fā)模塊的傳輸距離與調(diào)制信號(hào)頻率及幅度，發(fā)射電壓及電池容量，發(fā)射天線(xiàn)，收發(fā)環(huán)境有關(guān)。西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊,433M無(wú)線(xiàn)通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502782919922/9722951.png"></div><p style="text-indent:25px">隨著科技的日益發(fā)達(dá)，無(wú)線(xiàn)模塊在遙控、遙測(cè)、無(wú)線(xiàn)遙控系統(tǒng)、安全防火系統(tǒng)、小型無(wú)線(xiàn)網(wǎng)絡(luò)、工業(yè)數(shù)據(jù)采集系統(tǒng)、無(wú)線(xiàn)吊稱(chēng)、無(wú)線(xiàn)電子衡器、車(chē)輛監(jiān)控、不停車(chē)收費(fèi)、停車(chē)場(chǎng)管理、無(wú)線(xiàn)標(biāo)簽、身份識(shí)別、生物信號(hào)采集、水文氣象監(jiān)控、機(jī)器人控制、數(shù)字音頻傳輸?shù)榷紩?huì)涉及。無(wú)線(xiàn)模塊的特點(diǎn)：成本廉價(jià)。有線(xiàn)通信方式的建立必須架設(shè)電纜，或挖掘電纜溝，因此需要大量的人力和物力;而用無(wú)線(xiàn)數(shù)傳電臺(tái)建立**無(wú)線(xiàn)數(shù)據(jù)傳輸方式則無(wú)需架設(shè)電纜或挖掘電纜溝，只需要在每個(gè)終端連接無(wú)線(xiàn)數(shù)傳電臺(tái)和架設(shè)適當(dāng)高度的天線(xiàn)就可以了。相比之下用無(wú)線(xiàn)數(shù)傳模塊建立**無(wú)線(xiàn)數(shù)據(jù)傳輸方式，節(jié)省了人力物力，投資是相當(dāng)節(jié)省的。當(dāng)然在一些近距離的數(shù)據(jù)通訊系統(tǒng)中，無(wú)線(xiàn)的通訊方式并不比有線(xiàn)的方式成本低，但是有時(shí)候?qū)嶋H的現(xiàn)場(chǎng)環(huán)境難以布線(xiàn)，客戶(hù)根據(jù)現(xiàn)場(chǎng)環(huán)境的需要還是會(huì)選用無(wú)線(xiàn)的方式來(lái)實(shí)現(xiàn)通訊。西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊超外差接收模塊適合比較惡劣的環(huán)境下全天候工作。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊,433M無(wú)線(xiàn)通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502805673828/9875741.png"></div><p style="text-indent:25px">無(wú)線(xiàn)發(fā)射模塊中我們常用的編碼方式是固定碼和滾動(dòng)碼。滾動(dòng)碼是固定碼的升級(jí)換代產(chǎn)品，現(xiàn)幾乎涉及保密的，都使用滾動(dòng)編碼方式。即使有這樣的編碼方式使其具備遠(yuǎn)程控制的功能。無(wú)線(xiàn)收發(fā)模塊的3大優(yōu)點(diǎn)：1、無(wú)線(xiàn)收發(fā)模塊自身輻射極小，加上電路模塊背面網(wǎng)狀接地銅箔的屏蔽作用，可以減少自身振蕩的泄漏和外界干擾信號(hào)的侵入。2、天線(xiàn)輸入端有選頻電路，而不依賴(lài)1/4波長(zhǎng)天線(xiàn)的選頻作用，控制距離較近時(shí)可以剪短甚至去掉外接天線(xiàn)。 3、無(wú)線(xiàn)收發(fā)模塊輸出端的波形在沒(méi)有信號(hào)時(shí)比較干凈，干擾信號(hào)為短暫的針狀脈沖，而不象其它超再生接收電路會(huì)產(chǎn)生密集的噪聲波形，所以抗干擾能力較強(qiáng)。</p><p style="text-indent:25px">433M無(wú)線(xiàn)通信模塊可以應(yīng)用在各種工業(yè)數(shù)據(jù)采集，但是傳統(tǒng)的有線(xiàn)采集方式，會(huì)比較不方便，例如:布線(xiàn)困難、環(huán)境復(fù)雜，成本高、費(fèi)時(shí)費(fèi)力費(fèi)財(cái)?shù)鹊?，但是無(wú)線(xiàn)模塊利用無(wú)線(xiàn)傳輸方式，可以輕松的解決這些問(wèn)題，但無(wú)線(xiàn)方式也有著一定的弊端，例如:不如有線(xiàn)采集方式來(lái)得穩(wěn)定，因?yàn)闊o(wú)線(xiàn)采集容易收到天氣等外在因素的影響。無(wú)線(xiàn)模塊其它的應(yīng)用領(lǐng)域有很多，比如:農(nóng)業(yè)灌溉、醫(yī)療行業(yè)、智能安防等等，總之，無(wú)線(xiàn)模塊會(huì)越來(lái)越深入人們的生活、工作等等。一般使用433MHz無(wú)線(xiàn)模塊來(lái)實(shí)現(xiàn)主從模式的通信系統(tǒng)當(dāng)中。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊,433M無(wú)線(xiàn)通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502878242188/9385885.png"></div><p style="text-indent:25px">無(wú)線(xiàn)發(fā)射接收模塊是從事數(shù)字音頻無(wú)線(xiàn)傳輸、數(shù)字視頻無(wú)線(xiàn)傳輸、無(wú)線(xiàn)數(shù)據(jù)通信、無(wú)線(xiàn)傳輸系統(tǒng)、無(wú)線(xiàn)遙控和遙測(cè)系統(tǒng)、無(wú)線(xiàn)數(shù)據(jù)采集系統(tǒng)、無(wú)線(xiàn)網(wǎng)絡(luò)、無(wú)線(xiàn)安全防范系統(tǒng)等應(yīng)用中，無(wú)線(xiàn)收發(fā)電路的設(shè)計(jì)一直是無(wú)線(xiàn)應(yīng)用的一個(gè)瓶頸。無(wú)線(xiàn)收發(fā)模塊整合了高頻鍵控收發(fā)電路的功能，以特小體積更低成本實(shí)現(xiàn)高速數(shù)據(jù)傳輸?shù)墓δ?。無(wú)線(xiàn)發(fā)射模塊相對(duì)應(yīng)的接收模塊常用的有兩種：即超再生接收和超外差接收?！〕偕鷻z波電路實(shí)際上是一個(gè)受間歇振蕩?kù)澲频母哳l振蕩器，這個(gè)高頻振蕩器采用電容三點(diǎn)式振蕩器，振蕩頻率和發(fā)射器的發(fā)射頻率相一致。而間歇振蕩又是在高頻振蕩的振蕩過(guò)程中產(chǎn)生的，反過(guò)來(lái)又鞚制著高頻振蕩器的振蕩與間歇。而間歇振蕩的頻率是由電路的參數(shù)決定的(一般為1百到幾百千赫)。這個(gè)頻率選低了，電路的抗干擾性能較好，但接收靈敏度較低，反之，頻率選高，接收靈敏度較好，但抗干擾性能變差。使用的時(shí)候可以把傳輸速率調(diào)低一些，這樣可以增加無(wú)線(xiàn)模塊傳輸距離。舟山433m無(wú)線(xiàn)接收模塊廠家直銷(xiāo)</p><p style="text-indent:25px">433MHz無(wú)線(xiàn)收發(fā)模組，采用高頻射頻技術(shù)。西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊</p><p style="text-indent:25px">什么是433m無(wú)線(xiàn)模塊？433MHz無(wú)線(xiàn)收發(fā)模組，采用高頻射頻技術(shù)，因此也叫RF433射頻小模塊。其由全數(shù)字科技生產(chǎn)的單IC射頻前端與ATMEL的AVR單片機(jī)組成，可高速傳輸數(shù)據(jù)信號(hào)的微型收發(fā)信機(jī)，對(duì)無(wú)線(xiàn)傳輸?shù)臄?shù)據(jù)進(jìn)行打包、檢錯(cuò)、糾錯(cuò)處理。元器件都采用工業(yè)級(jí)標(biāo)準(zhǔn)，工作穩(wěn)定可靠，體積小便于安裝。適用于安全報(bào)警、無(wú)線(xiàn)自動(dòng)抄表、家居及工業(yè)自動(dòng)化、遠(yuǎn)端遙控、無(wú)線(xiàn)數(shù)傳等等領(lǐng)域。433m無(wú)線(xiàn)模塊耗低，功能強(qiáng)大，被普遍應(yīng)用于機(jī)器人控制，智能家居，無(wú)線(xiàn)抄表等領(lǐng)域，產(chǎn)品是工業(yè)級(jí)設(shè)計(jì)，適用于室外低劣環(huán)境。當(dāng)模塊在使用中發(fā)現(xiàn)距離不夠的時(shí)候，經(jīng)常建議選用符合的天線(xiàn)，以達(dá)到增加通信距離的目的。西安專(zhuān)業(yè)售賣(mài)433m無(wú)線(xiàn)通訊</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2944605.html</p></div></div></div></div></div><div id="kxzlipm" class="page-right twoColRt"><div id="lv2apbd" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3qk37da" class="recomPic likePro"><a 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