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<p>411D數(shù)字式毫秒計(jì)是一種數(shù)字式多功能計(jì)時(shí)儀器。該機(jī)采用大中規(guī)模集成電路，使用高精度石英晶體作為時(shí)標(biāo)基準(zhǔn)，六位計(jì)數(shù)/譯碼/驅(qū)動(dòng)，LED紅色發(fā)光數(shù)碼管顯示。在結(jié)構(gòu)上采用ABS工程塑料便攜式外殼，琴鍵開(kāi)關(guān)控制，鋁合金外包裝箱，便于攜帶。該機(jī)操作方便、讀數(shù)直觀、穩(wěn)定性好、抗干擾性強(qiáng)、測(cè)試精度高、體積小、重量輕、格低廉?？蓮V泛適用于各種繼電器、機(jī)床電器、開(kāi)關(guān)、延時(shí)器及電子線路中的時(shí)間參數(shù)測(cè)試。</p> </div> <p><strong>型號(hào)：</strong></p> <p><strong>瀏覽量：</strong>1505</p> <p><strong>更新時(shí)間：</strong>2024-07-08</p> <p><strong>價(jià)格：</strong><a href="#order"><img src=/images/cankaojia.gif border=0></a></p> <a href="#tagContent1" class="gwc_an2 lightbox" style=" float:left;" rel="group1">在線留言</a> </div> <div class="ihno5c4uhq" id="preview"> <div id="ihno5c4uhq" class="jqzoom"><a target="_blank"><img id="bigImg" src="http://img75.chem17.com/gxhpic_3cd5e59743/8975028d8e14767fc4f32723ea77a0bc347105385d99ed546fa5afddea6fcc795837eb95fc386bea_320_320_5.png" onload="AutoResizeImage(320,320,this)" 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style="font-family:楷體_gb2312">是我公司研制的一種高精度、6位數(shù)字式精密測(cè)時(shí)、測(cè)頻儀器，該儀器設(shè)計(jì)新穎、工藝考究，主要器件采用標(biāo)準(zhǔn)集成電路，由于采取高精度溫度補(bǔ)償石英晶體諧振器作為測(cè)量基準(zhǔn)，使該儀器的測(cè)量準(zhǔn)確度和測(cè)量范圍都高于一般的數(shù)字式電秒表。為了測(cè)量的方便性，改儀器設(shè)置了自動(dòng)復(fù)位（“雙路"測(cè)量時(shí)，下次測(cè)量信號(hào)輸入時(shí)清除上次測(cè)試數(shù)字）電路，在結(jié)構(gòu)上采用ABS工程塑料便攜式外殼、線路板采用大板結(jié)構(gòu)并標(biāo)印字符，便于檢查及維修，面板開(kāi)關(guān)布局合量、美觀、操作指示明確、清晰。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">該機(jī)具有穩(wěn)定性好，抗干擾性強(qiáng)，測(cè)試精度高，操作方便、讀數(shù)直觀、重量輕、外型美、性能價(jià)格比高等優(yōu)點(diǎn)。廣泛適用于電子路中的時(shí)間參數(shù)及各種精密繼電器、延時(shí)繼電器、延時(shí)器測(cè)試。是計(jì)量檢測(cè)部門(mén)、工業(yè)自動(dòng)化控制、通訊、信號(hào)和繼電器制造、電力繼保、國(guó)防、科研系統(tǒng)理想的精密計(jì)時(shí)儀器。</span></span></p><p><span style="font-size:16px"><strong style="text-align:center"><span style="font-family:楷體_gb2312">一、</span></strong><strong><span style="font-family:楷體_gb2312">411D型數(shù)字式毫秒儀</span></strong><strong style="text-align:center"><span style="font-family:楷體_gb2312">主要技術(shù)參數(shù)</span></strong></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">1、測(cè)量范圍：0.01ms—9999.99 S（4檔量程）。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">2、測(cè)頻范圍：10Hz—1MHz。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">3、測(cè)量準(zhǔn)確度：</span><span style="font-family:宋體">≤5×10</span><sup><span style="font-family:宋體">-6</span></sup><span style="font-family:楷體_gb2312">±1個(gè)尾數(shù)字。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">4、顯現(xiàn)方式：六位LED紅色數(shù)碼管。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">5、適應(yīng)信號(hào)：正、負(fù)脈沖波、正、負(fù)電位躍變，空接點(diǎn)閉合、斷開(kāi) </span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">6、測(cè)頻適應(yīng)信號(hào)： 5V－50V（P—P）方波、正弦波。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">7、輸入阻抗:測(cè)時(shí) 50KΩ，測(cè)頻10KΩ。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">8、工作環(huán)境：</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">溫度：0－40℃</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312"> 濕度：≤85%（30℃）。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">9、工作電源：220±10% 50/60Hz。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">10、功耗≤6W。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">11、連續(xù)工作時(shí)間：8h</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">12、體積：264（長(zhǎng)）×360（寬）×85（高）mm</span><sup><span style="font-family:楷體_gb2312">3</span></sup><span style="font-family:楷體_gb2312">.</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">13、重量：約2kg。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">14、復(fù)位方式：手動(dòng)或自動(dòng)（雙路）。</span></span></p><p><span style="font-size:16px"><strong style="text-align:center"><span style="font-family:楷體_gb2312">二、</span></strong><strong><span style="font-family:楷體_gb2312">411D型數(shù)字式毫秒儀 </span></strong><strong style="text-align:center"><span style="font-family:楷體_gb2312">測(cè)試功能</span></strong></span></p><p><span style="font-size:16px"><strong><span style="font-family:楷體_gb2312">單路</span></strong></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">1、正脈沖寬度（一次正電壓作用時(shí)間）。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">2、負(fù)脈沖寬度（一次負(fù)電壓作用時(shí)間）。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">3、空接點(diǎn)閉合時(shí)間（一個(gè)不帶電的開(kāi)關(guān)從閉合到斷開(kāi)的累計(jì)時(shí)間）。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">4、空接點(diǎn)斷開(kāi)時(shí)間（一個(gè)不帶的電開(kāi)關(guān)從斷開(kāi)到閉合的累計(jì)時(shí)間）</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">5、頻率測(cè)量（1Hz-1MHz）</span></span></p><p><span style="font-size:16px"><strong><span style="font-family:楷體_gb2312">雙路</span></strong></span></p><p><span style="font-size:16px"><strong><span style="font-family:楷體_gb2312">開(kāi)始計(jì)時(shí)</span></strong><span style="font-family:楷體_gb2312">—正躍變、負(fù)躍變、空接點(diǎn)（不帶電的開(kāi)關(guān)閉合或者斷開(kāi)均可）</span></span></p><p><span style="font-size:16px"><strong><span style="font-family:楷體_gb2312">停止計(jì)時(shí)</span></strong><span style="font-family:楷體_gb2312">—正躍變、負(fù)躍變、空接點(diǎn)（不帶電的開(kāi)關(guān)閉合或者斷開(kāi)均可）</span></span></p><p><br/></p><p><span style="font-size:16px"><strong><span style="font-family:楷體_gb2312"> 名詞解釋</span></strong></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">“</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)</span></strong><span style="font-family:楷體_gb2312">"即</span><strong><span style="font-family:楷體_gb2312">不帶電</span></strong><span style="font-family:楷體_gb2312">的繼電器觸點(diǎn)或者開(kāi)關(guān)</span></span></p><p style="margin-left:5.5000pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">“</span><strong><span style="font-family:楷體_gb2312">正躍變"</span></strong><span style="font-family:楷體_gb2312">、“</span><strong><span style="font-family:楷體_gb2312">負(fù)躍變</span></strong><span style="font-family:楷體_gb2312">"指直流電壓突然上升或者突然下降，其實(shí)就是</span><strong><span style="font-family:楷體_gb2312">電脈沖的上升沿和下降沿</span></strong><span style="font-family:楷體_gb2312">。</span></span></p><p style="margin-left:5.5000pt"><span style="font-size:16px"><strong style="text-align:center"><span style="font-family:楷體_gb2312">三、</span></strong><strong><span style="font-family:楷體_gb2312">411D型數(shù)字式毫秒儀 </span></strong><strong style="text-align:center"><span style="font-family:楷體_gb2312">原理概述</span></strong></span></p><p style="text-align:center"><br/></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">該儀器的基本測(cè)試原理是：被測(cè)信號(hào)經(jīng)輸入通道衰減、限幅、放大整形后去控制主門(mén)的開(kāi)、閉，在被測(cè)時(shí)間內(nèi)計(jì)數(shù)器對(duì)機(jī)內(nèi)時(shí)標(biāo)進(jìn)行計(jì)數(shù)，即顯示出被測(cè)時(shí)間的數(shù)值。測(cè)量頻率時(shí)由本機(jī)開(kāi)啟標(biāo)準(zhǔn)時(shí)間閘門(mén)，被測(cè)頻率進(jìn)入計(jì)數(shù)器計(jì)數(shù)而測(cè)出信號(hào)的頻率。</span></span></p><p><span style="font-size:16px"><strong style="text-align:center"><span style="font-family:楷體_gb2312">四、</span></strong><strong><span style="font-family:楷體_gb2312">411D型數(shù)字式毫秒儀</span></strong><strong style="text-align:center"><span style="font-family:楷體_gb2312">使用注意</span></strong></span></p><p style="text-align:center"><br/></p><p style="margin-left:18.0000pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">1、測(cè)試電信號(hào)必須是直流信號(hào)，幅度必須在5—50V（P-P）范圍內(nèi)。測(cè)試電纜紅夾接被測(cè)信號(hào)端，黑夾接被測(cè)信號(hào)地端（零電位）。</span></span></p><p style="margin-left:18.0000pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">2、測(cè)試“</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)</span></strong><span style="font-family:楷體_gb2312">"信號(hào)時(shí)其被測(cè)接點(diǎn)</span><strong><span style="font-family:楷體_gb2312">兩端必須無(wú)電壓存在</span></strong><span style="font-family:楷體_gb2312">，測(cè)試電纜黑夾和紅夾任意夾于被測(cè)接點(diǎn)兩端。</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">3、被測(cè)信號(hào)必須是單次性的，</span></span></p><p style="margin-left:18.0000pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">4、在雙路測(cè)試時(shí)“</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)</span></strong><span style="font-family:楷體_gb2312">"檔不論是</span><strong><span style="font-family:楷體_gb2312">接點(diǎn)閉合或斷開(kāi)</span></strong><span style="font-family:楷體_gb2312">均起作用，</span><strong><span style="font-family:楷體_gb2312">無(wú)須識(shí)別</span></strong><span style="font-family:楷體_gb2312">。</span></span></p><p style="margin-left:18.0000pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">5、在</span><strong><span style="font-family:楷體_gb2312">雙路</span></strong><span style="font-family:楷體_gb2312">測(cè)試時(shí)，下次測(cè)試信號(hào)輸入即可自動(dòng)復(fù)位（測(cè)試完成后），但也可人工手動(dòng)復(fù)位。</span></span></p><p style="margin-left:18.0000pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">6、測(cè)試?yán)^電器動(dòng)作時(shí)間時(shí)，不宜從繼電器線圈上并聯(lián)測(cè)試夾作為電信號(hào)啟動(dòng)儀表（因?yàn)橛须姼校瑧?yīng)采用同步雙擲開(kāi)關(guān)</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)</span></strong><span style="font-family:楷體_gb2312">啟動(dòng)儀表。否則容易造成</span><strong><span style="font-family:楷體_gb2312">干擾或損壞儀器</span></strong><span style="font-family:楷體_gb2312">。</span></span></p><p style="margin-left:18.0000pt"><span style="font-size:16px"><strong style="text-align:center"><span style="font-family:楷體_gb2312">五、</span></strong><strong><span style="font-family:楷體_gb2312">411D型數(shù)字式毫秒儀 </span></strong><strong style="text-align:center"><span style="font-family:楷體_gb2312">使用方法</span></strong></span></p><p style="text-align:center"><br/></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">1、</span><strong><span style="font-family:楷體_gb2312">正脈沖寬度</span></strong><span style="font-family:楷體_gb2312">測(cè)試：（一次正極性電壓作用時(shí)間）</span></span></p><p style="margin-left:21.9500pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">將功能選擇開(kāi)關(guān)“</span><strong><span style="font-family:楷體_gb2312">K1</span></strong><span style="font-family:楷體_gb2312">"置于“</span><strong><span style="font-family:楷體_gb2312">正脈沖寬度</span></strong><span style="font-family:楷體_gb2312">"檔位，被測(cè)信號(hào)從“</span><strong><span style="font-family:楷體_gb2312">A</span></strong><span style="font-family:楷體_gb2312">"插座輸入即可測(cè)度。（測(cè)試的電脈沖必須是一次信號(hào)，如果是連續(xù)的電脈沖會(huì)累計(jì)。</span></span></p><p><br/></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">2、</span><strong><span style="font-family:楷體_gb2312">負(fù)脈沖寬度</span></strong><span style="font-family:楷體_gb2312">測(cè)試：（一次負(fù)極性電壓作用時(shí)間）</span></span></p><p style="margin-left:21.9500pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">將功能選擇開(kāi)關(guān)“</span><strong><span style="font-family:楷體_gb2312">K1</span></strong><span style="font-family:楷體_gb2312">"置于“</span><strong><span style="font-family:楷體_gb2312">負(fù)脈沖寬度</span></strong><span style="font-family:楷體_gb2312">"檔位，被測(cè)信號(hào)從“</span><strong><span style="font-family:楷體_gb2312">A</span></strong><span style="font-family:楷體_gb2312">"插座輸入即可測(cè)度。（測(cè)試的電脈沖必須是一次信號(hào)，如果是連續(xù)的電脈沖會(huì)累計(jì)。</span></span></p><p><br/></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">3、</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)開(kāi)關(guān)閉合</span></strong><span style="font-family:楷體_gb2312">時(shí)間測(cè)試：（一個(gè)不帶電的開(kāi)關(guān)從閉合到斷開(kāi)的時(shí)間）</span></span></p><p style="margin-left:21.9500pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">將功能選擇開(kāi)關(guān)“</span><strong><span style="font-family:楷體_gb2312">K1</span></strong><span style="font-family:楷體_gb2312">"置于“</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)閉合</span></strong><span style="font-family:楷體_gb2312">"檔位，測(cè)試電纜的紅夾和黑夾分別夾于被測(cè)接點(diǎn)兩端，被測(cè)信號(hào)從“</span><strong><span style="font-family:楷體_gb2312">A</span></strong><span style="font-family:楷體_gb2312">"插座輸入即可測(cè)試。</span></span></p><p><br/></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">4、</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)開(kāi)關(guān)斷開(kāi)</span></strong><span style="font-family:楷體_gb2312">時(shí)間測(cè)量（一個(gè)不帶電的開(kāi)關(guān)從斷開(kāi)到閉合的時(shí)間）</span></span></p><p style="margin-left:21.9500pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">將功能選擇開(kāi)關(guān)“</span><strong><span style="font-family:楷體_gb2312">K1</span></strong><span style="font-family:楷體_gb2312">"置于“</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)斷開(kāi)</span></strong><span style="font-family:楷體_gb2312">"檔位，測(cè)試電纜的紅夾和黑夾分別夾于被測(cè)接點(diǎn)兩端，被測(cè)信號(hào)從“</span><strong><span style="font-family:楷體_gb2312">A</span></strong><span style="font-family:楷體_gb2312">"插座輸入即可測(cè)試。</span></span></p><p><br/></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">5、</span><strong><span style="font-family:楷體_gb2312">雙路</span></strong><span style="font-family:楷體_gb2312">時(shí)間間隔測(cè)試：（兩路信號(hào)時(shí)間的差值）</span></span></p><p style="margin-left:16.4000pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">“</span><strong><span style="font-family:楷體_gb2312">啟動(dòng)</span></strong><span style="font-family:楷體_gb2312">"、“</span><strong><span style="font-family:楷體_gb2312">停止</span></strong><span style="font-family:楷體_gb2312">"信號(hào)均可以是“</span><strong><span style="font-family:楷體_gb2312">正躍變</span></strong><span style="font-family:楷體_gb2312">"、“</span><strong><span style="font-family:楷體_gb2312">負(fù)躍變</span></strong><span style="font-family:楷體_gb2312">"、“</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)</span></strong><span style="font-family:楷體_gb2312">"中的任一種，（</span><strong><span style="font-family:楷體_gb2312">空接點(diǎn)不區(qū)分接通、斷開(kāi)</span></strong><span style="font-family:楷體_gb2312">）共有九種組合測(cè)試方式。</span></span></p><p><br/></p><p style="margin-left:21.9500pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">根據(jù)“</span><strong><span style="font-family:楷體_gb2312">啟動(dòng)</span></strong><span style="font-family:楷體_gb2312">"信號(hào)選擇好功能選擇開(kāi)關(guān)“</span><strong><span style="font-family:楷體_gb2312">K1</span></strong><span style="font-family:楷體_gb2312">"檔位</span></span></p><p style="margin-left:21.9500pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">根據(jù)“</span><strong><span style="font-family:楷體_gb2312">停止</span></strong><span style="font-family:楷體_gb2312">"信號(hào)選擇好功能選擇開(kāi)關(guān)“</span><strong><span style="font-family:楷體_gb2312">K2</span></strong><span style="font-family:楷體_gb2312">"檔位</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">“</span><strong><span style="font-family:楷體_gb2312">啟動(dòng)</span></strong><span style="font-family:楷體_gb2312">"信號(hào)接“</span><strong><span style="font-family:楷體_gb2312">A</span></strong><span style="font-family:楷體_gb2312">"插座</span></span></p><p><span style="font-size:16px"><span style="font-family:楷體_gb2312">“</span><strong><span style="font-family:楷體_gb2312">停止</span></strong><span style="font-family:楷體_gb2312">"信號(hào)接“</span><strong><span style="font-family:楷體_gb2312">B</span></strong><span style="font-family:楷體_gb2312">"插座即可測(cè)試</span></span></p><p style="margin-left:21.9500pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">測(cè)試完成后，下次的啟動(dòng)信號(hào)將顯示的數(shù)字自動(dòng)復(fù)位（清零），重新開(kāi)始進(jìn)入下一次測(cè)試（自動(dòng)復(fù)位功能），也可以手動(dòng)復(fù)位。</span></span></p><p style="margin-left:16.5000pt"><span style="font-size:16px"><span style="font-family:楷體_gb2312">5、頻率測(cè)試：將功能開(kāi)關(guān)置于“頻率"被測(cè)頻率信號(hào)從“</span><strong><span style="font-family:楷體_gb2312">A</span></strong></span><span style="font-size:11.0000pt"><span style="font-family:楷體_gb2312"><span style="font-size:16px">"插座輸入即可測(cè)試</span>。</span></span></p><p><br/></p></div> <div id="ihno5c4uhq" class="tagContent" id="tagContent1" style="display: block;"><link rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> 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