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class="prodtl_btn1">產(chǎn)品咨詢</a><a href="/contact.html" class="prodtl_btn2">聯(lián)系我們</a> </div> </div> <div id="ag0icou4w4" class="clear"></div> </div>  </div> <div id="ag0icou4w4" class="lhtab"><span id="ag0icou4w4" class="on span1">產(chǎn)品詳情</span><span id="ag0icou4w4" class="span2">在線留言</span></div> <div id="ag0icou4w4" class="page-procon"> <p><strong>ZY5018手持?jǐn)?shù)字選頻電平表</strong></p><table align="center" style="border-collapse:collapse; border-spacing:0px; height:2071px; margin:0px; max-width:100%; padding:0px; width:737px; word-break:inherit"><tbody><tr><td><strong>簡述</strong></td></tr><tr><td colspan="2"><p><strong> 這是一套既精密又便于攜帶的現(xiàn)場測試儀表。不僅適用于通信系統(tǒng)對基帶特性的測試，特別適用于電力載波通信設(shè)備和電力保護(hù)高頻通道的調(diào)試、開通、維護(hù)測試，以及大專院校相關(guān)專業(yè)的教學(xué)和實驗。儀表采用 ARM 微功耗、高性能微處理芯片技術(shù)，3.5 〞彩色 LCD 顯示，全中文菜單式界面，數(shù)字鍵盤式操作，內(nèi)置可充電鋰電池，交 / 直流供電。使得儀器體積小，重量輕，功能強大，性能穩(wěn)定，顯示清晰，操作十分簡便。測量數(shù)據(jù)自動存貯，可以在本機查詢，也可以通過 USB 口下載到 U 盤，傳輸?shù)?PC 機處理或打印報表。儀表具有自動電平校準(zhǔn)、自動量程切換、 AFC 頻率自動跟蹤、快速自動搜索、近端同步測量、遠(yuǎn)端雙機自動對測、阻抗測量、雜音測量等功能。</strong></p></td></tr><tr><td colspan="2"><strong> </strong></td></tr><tr><td><strong><img alt="ZY5018/5068 手持?jǐn)?shù)字選頻電平表/電平振蕩器" src="http://i01.yizimg.com/" style="height:auto; margin:0px auto 5px !important; width:12px" /></strong></td><td><strong>主要特點</strong></td></tr><tr><td><strong>●</strong></td><td><strong>儀表發(fā)信電平： -77.9dB ～ +20dB ，具有良好的頻響和電平穩(wěn)定度，輸出純度*，是理想的高質(zhì)量信號源。輸出口設(shè)有自動保護(hù)電路，不會因強信號灌入而損壞輸出電路，特別適用于繼電保護(hù)高頻收、發(fā)信機測試。</strong></td></tr><tr><td><strong>●</strong></td><td><p><strong>儀表工作頻率測量范圍： 200Hz ～ 1700kHz ，包括從話路到 300 路群路的全部頻段，分辨率 1Hz ，頻率精度± 1 × 10 - 6 ± 1Hz 。頻率調(diào)節(jié)全數(shù)字化，操作簡便。頻率增量調(diào)節(jié)用戶自由選擇，zui小步進(jìn) 1Hz 。</strong></p></td></tr><tr><td><strong>●</strong></td><td><strong>電平自動校準(zhǔn)：隨時校正不同測量帶寬 0dB 電平。</strong></td></tr><tr><td><strong>●</strong></td><td><p><strong>電平測量范圍： - 90dB ～ +50dB ，分辨率 0.01dB 。</strong></p></td></tr><tr><td><strong>●</strong></td><td><p><strong>自動單位切換： dB/dBm/mV 三種測量單位按單位鍵自動切換，直接顯示測試結(jié)果而不用計算。</strong></p></td></tr><tr><td><strong>●</strong></td><td><strong>AFC 功能：可以全頻段長時間跟蹤被測信號。</strong></td></tr><tr><td><strong>●</strong></td><td><p><strong>快速自動搜索：自動尋找未知信號，快速準(zhǔn)確地測量未知信號的電平和頻率。</strong></p></td></tr><tr><td><strong>●</strong></td><td><p><strong>選頻測量：具有 25Hz 和 1.74kHz 兩種帶寬，良好的選擇性以及很低的固有失真，使電平表不僅僅作電平和串雜音測量，也可作波形分析。</strong></p></td></tr><tr><td><strong>●</strong></td><td><p><strong>近端同步測量、遠(yuǎn)程雙機自動對測：自動測量載波通道，高頻保護(hù)通道的電平、衰減、幅頻特性、衡重雜音、線路阻抗等高頻參數(shù)測量。</strong></p></td></tr><tr><td><strong>●</strong></td><td><p><strong>阻抗測量：載波通道線路阻抗測量，可直讀阻抗模值 20 Ω～ 1200 Ω，顯示分辯率 0.1 Ω。</strong></p></td></tr><tr><td><strong>●</strong></td><td><p><strong>雜音測量：設(shè)有點頻和自動（掃頻）測量兩種方式，自動測量的結(jié)果直讀并自動存儲。</strong></p></td></tr><tr><td><strong>●</strong></td><td><p><strong>另外，由于電平表的高電平輸入可達(dá) +50dB ，配合各種輸入、輸出阻抗適用于和通信設(shè)備進(jìn)行匹配測量；高電平測量輸入阻抗≈ 30k Ω，適宜于作跨接測量。</strong></p></td></tr><tr><td colspan="2"><strong> </strong></td></tr><tr><td><strong><img alt="ZY5018/5068 /電平振蕩器" src="http://i01.yizimg.com/" style="height:auto; margin:0px auto 5px !important; width:12px" /></strong></td><td><strong><strong>電氣性能</strong></strong></td></tr><tr><td colspan="2"><table border="1" style="border-collapse:collapse; border-spacing:0px; height:181px; margin:0px; max-width:100%; padding:0px; width:721px; word-break:inherit"><tbody><tr><td colspan="2"><p><strong> </strong></p><p><strong><strong>本套儀表均采用兩種供電方式，即交直兩用。</strong></strong></p></td></tr><tr><td rowspan="2"><p><strong><strong>交流供電</strong></strong></p></td><td><p><strong>外置＋ 9V/ 2.5A AC/DC 電源適配器（交流 220V ± 10 ％ 50Hz ± 5 ％）。</strong></p></td></tr><tr><td><strong>交流供電時，儀器自動給內(nèi)置鋰電池充電。</strong></td></tr><tr><td rowspan="3"><p><strong><strong>直流供電</strong></strong></p></td><td><strong>內(nèi)置可充電鋰電池，標(biāo)稱電壓 7.4V, 2.1AH 。</strong></td></tr><tr><td><strong>電池供電時，功耗小于2W ，連續(xù)工作時間大于 300 分鐘。</strong></td></tr><tr><td><p><strong>儀器設(shè)有電量顯示和低電量提示。</strong></p></td></tr><tr><td><p><strong><strong>環(huán)境條件</strong></strong></p></td><td><strong>環(huán)境條件符合 GB6587.1 中Ⅱ組的要求。</strong></td></tr><tr><td rowspan="3"><strong><strong>可靠性</strong></strong></td><td><strong>系統(tǒng)平均*工作時間（ MTBF ）： 3000 小時。</strong></td></tr></tbody></table></td></tr><tr><td colspan="2"><strong> </strong></td></tr><tr><td><strong><img alt="ZY5018/5068 /電平振蕩器" src="http://i01.yizimg.com/" style="height:auto; margin:0px auto 5px !important; width:12px" /></strong></td><td><strong>機械結(jié)構(gòu)性能</strong></td></tr><tr><td colspan="2"><table border="1" style="border-collapse:collapse; border-spacing:0px; height:112px; margin:0px; max-width:100%; padding:0px; width:721px; word-break:inherit"><tbody><tr><td colspan="2"><p><strong> </strong></p><strong><strong>本套儀器外形設(shè)計均為手持式結(jié)構(gòu)，內(nèi)部電路采用了三層疊式結(jié)構(gòu)，模塊化設(shè)計，層間采用針式鏈接。所以儀器體積小、重量輕、可靠性高，便于攜帶，適合各種條件和環(huán)境使用。</strong></strong></td></tr><tr><td rowspan="2"><p><strong><strong>選頻電平表</strong></strong></p></td><td><p><strong>外形尺寸： 200mm × 100mm × 60mm</strong></p></td></tr><tr><td><strong>質(zhì) 量：0.8kg</strong></td></tr><tr><td rowspan="2"><p><strong><strong>電平振蕩器</strong></strong></p></td><td><p><strong>外形尺寸： 200mm × 100mm × 60mm</strong></p></td></tr><tr><td><strong>質(zhì) 量：0.7kg</strong></td></tr></tbody></table></td></tr><tr><td colspan="2"><strong> </strong></td></tr><tr><td><strong><img alt="ZY5018/5068 /電平振蕩器" src="http://i01.yizimg.com/" style="height:auto; margin:0px auto 5px !important; width:12px" /></strong></td><td><strong><strong>ZY5018 手持選頻電平</strong>主要技術(shù)特性</strong></td></tr><tr><td colspan="2"><table border="1" class="chanpinfont" style="border-collapse:collapse; border-spacing:0px; margin:0px; max-width:100%; padding:0px; width:721px; word-break:inherit"><tbody><tr><th rowspan="3" scope="row"><strong><strong>頻率范圍</strong></strong></th><td colspan="2"><strong>寬頻測量 200Hz～1700kHz （平衡600Ω，200Hz～620kHz）</strong></td></tr><tr><td rowspan="2"><strong>選頻測量</strong><p><strong> </strong></p></td><td><strong>B=25Hz 200Hz～1700kHz（平衡600Ω，200Hz～620kHz）</strong></td></tr><tr><td><strong>B=1.74kHz 4kHz～1700kHz（平衡600Ω，4kHz～620kHz）</strong></td></tr><tr><th rowspan="3" scope="row"><strong>頻率調(diào)節(jié)</strong></th><td colspan="2"><p><strong>數(shù)字鍵或增量上 / 下鍵輸入，頻率誤差 ±1×10 -6 ±1Hz ，增量調(diào)節(jié)步長由用戶設(shè)定， AFC 全頻段跟蹤</strong></p></td></tr><tr><td colspan="2"><p><strong>AFC 全頻段跟蹤，捕捉帶 B=25Hz ：約 ±50Hz; B=1.74k Hz ：約 ±500Hz ；</strong></p></td></tr><tr><td colspan="2"><strong>自動搜索功能，zui低可搜索電平-80dB</strong></td></tr><tr><th rowspan="3" scope="row"><strong>電平范圍</strong></th><td colspan="2"><p><strong>寬頻測量 -50dB～+50dB</strong></p></td></tr><tr><td rowspan="2"><strong>選頻測量</strong></td><td><strong>B=25Hz -80dB～+50dB</strong></td></tr><tr><td><strong>B=1.74kHz -70dB～+50dB</strong></td></tr><tr><th scope="row"><strong>電平顯示器</strong></th><td colspan="2"><strong>LCD漢字圖形顯示，菜單式操作，測量結(jié)果有數(shù)字和模擬棒兩種指示。分辨率0.01dB，具有dB、dBm、mV三種單位顯示</strong></td></tr><tr><th rowspan="3" scope="row"><strong>電平范圍</strong></th><td colspan="2"><p><strong>寬頻測量 -50dB～+50dB</strong></p></td></tr><tr><td rowspan="2"><strong>選頻測量</strong></td><td><strong>B=25Hz -80dB～+50dB</strong></td></tr><tr><td><strong>B=1.74kHz -70dB～+50dB</strong></td></tr><tr><th scope="row"><strong>電平顯示器</strong></th><td colspan="2"><strong>LCD漢字圖形顯示，菜單式操作，測量結(jié)果有數(shù)字和模擬棒兩種指示。分辨率0.01dB，具有dB、dBm、mV三種單位顯示</strong></td></tr><tr><th rowspan="2" scope="row"><strong>輸入阻抗</strong></th><td colspan="2"><p><strong>不平衡：75Ω、∞，高電平輸入：≈30kΩ</strong></p></td></tr><tr><td colspan="2"><strong>平衡：600Ω、150Ω、∞</strong></td></tr><tr><th scope="row"><strong>電平測量誤差</strong></th><td colspan="2"><p><strong>具有0dB電平自動校正，0dB固有誤差：±0.1dB，電平線性誤差：±0.25dB</strong></p></td></tr><tr><th rowspan="3" scope="row"><strong>頻率選擇性</strong></th><td rowspan="2"><strong>兩種帶寬 </strong></td><td><strong>B=25Hz 3dB帶寬約24Hz</strong></td></tr><tr><td><strong>B=1.74kHz 3dB帶寬約1.74kHz</strong></td></tr><tr><td colspan="2"><strong>中頻衰減 ≥60dB；鏡象頻率衰減 ≥70dB</strong></td></tr><tr><th scope="row"><strong>固有失真衰減</strong></th><td colspan="2"><strong>≥ 60dB</strong></td></tr><tr><th scope="row"><strong>回波損耗</strong></th><td colspan="2"><strong>≥30dB</strong></td></tr><tr><th scope="row"><strong>機內(nèi)固有噪音</strong></th><td colspan="2"><strong>＜ -100dB</strong></td></tr><tr><th scope="row"><strong>縱向干擾衰減</strong></th><td colspan="2"><strong>≥40dB</strong></td></tr></tbody></table></td></tr><tr><td colspan="2"><strong> </strong></td></tr><tr><td><strong><img alt="ZY5018/5068 /電平振蕩器" src="http://i01.yizimg.com/" style="height:auto; margin:0px auto 5px !important; width:12px" /></strong></td><td><strong><strong>Z</strong><strong>Y5068 手持電平振蕩器主要技術(shù)特性</strong></strong></td></tr><tr><td colspan="2"><table border="1" style="border-collapse:collapse; border-spacing:0px; margin:0px; max-width:100%; padding:0px; width:721px; word-break:inherit"><tbody><tr><th><strong>頻率誤差</strong></th><td><strong>±1×10-6±1Hz，分辨率1Hz</strong></td></tr><tr><th rowspan="5"><p><strong>輸出電平與阻抗</strong></p></th><td><strong>不平衡0Ω -77.9dB～+20dB，允許外接75Ω</strong></td></tr><tr><td><strong>不平衡75Ω -77.9dB～+14dB，（-68.9dBm～+23dBm）</strong></td></tr><tr><td><strong>平衡 0Ω -71.9dB～+20dB</strong></td></tr><tr><td><strong>平衡150Ω -77.9dB～+20dB，（-71.9dBm～+26dBm）</strong></td></tr><tr><td><strong>平衡600Ω -77.9dB～+20dB</strong></td></tr><tr><td><p><strong><strong>電平顯示器</strong></strong></p></td><td><strong>LCD漢字圖形顯示，菜單式操作，電平數(shù)字指示，具有dB、dBm、mV 三種單位顯示</strong></td></tr><tr><td rowspan="2"><strong><strong>頻率與電平調(diào)節(jié)</strong></strong></td><td><p><strong>采用數(shù)字鍵或增量上 /下鍵輸入</strong></p></td></tr><tr><td><p><strong>增量調(diào)節(jié):頻率、電平步長由用戶設(shè)定</strong></p></td></tr><tr><td rowspan="2"><p><strong><strong>輸出電平誤差</strong></strong></p></td><td><strong>0dB固有誤差 ±0.1dB</strong></td></tr><tr><td><strong>電平線性誤差 ±0.2dB</strong></td></tr><tr><th><p><strong>輸出信號平衡度</strong></p></th><td><strong>≥40dB</strong></td></tr><tr><th rowspan="2"><p><strong>失真衰減</strong></p></th><td><strong>二、三次諧波衰減 ≥46dB</strong></td></tr><tr><td><strong>非諧波和雜散衰減 ≥46dB</strong></td></tr></tbody></table></td></tr></tbody></table> <div id="ag0icou4w4" class="pagetb"> <p> 上一條：<a href="/Products-24861110.html">KJ330三相微機繼電保護(hù)測試儀</a></p> <p> 下一條：<a href="/Products-24863381.html">ZY5068手持?jǐn)?shù)字電平振蕩器</a></p> </div> </div> <div id="ag0icou4w4" class="page-messages" style="display: none;"> <link rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> <script language="javascript" src="/skins/Scripts/order.js?v=20210318" type="text/javascript"></script> <a name="order" 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