| UM-2技術(shù)數(shù)據(jù)<\/span><\/span><\/strong> <\/strong>
工作原理
<\/strong>脈沖～回波方式
測量范圍
<\/strong>0.8～<\/span>300mm<\/span>（標(biāo)準(zhǔn)模式）<\/span>取決于所用探頭、所測材料、表面狀況
單位和顯示分辨率
<\/strong>毫米-0.01<\/span>，<\/span>0.1
<\/span>英寸-0.001<\/span>，<\/span>0.01
<\/span>探頭零點(diǎn)校準(zhǔn)
<\/strong>一點(diǎn)校準(zhǔn)（用于常規(guī)的厚度測量）
兩點(diǎn)校準(zhǔn)（測量曲面壁厚或特殊應(yīng)用時(shí)，可顯著提高測量精度）
V路徑修正
<\/span><\/strong>自動(dòng)V<\/span>聲程修正，補(bǔ)償雙晶探頭的非線性度
<\/span>示值誤差
<\/strong>±0.05mm (25mm<\/span>以下<\/span>)
<\/span>±0.5% H+0.01 (25mm<\/span>以上<\/span>)
<\/span>注：H<\/span>為被測物厚度
<\/span>重復(fù)性
<\/strong>±0.05mm
<\/span>顯示屏
<\/strong>128×<\/span>64<\/span>點(diǎn)陣液晶屏（<\/span>42<\/span>×<\/span>57<\/span>毫米）
<\/span>具有EL<\/span>背光，可調(diào)節(jié)對比度
<\/span>厚度值數(shù)字高度可達(dá)13.75<\/span>毫米
<\/span>測量刷新頻率
<\/strong>常規(guī)測量時(shí)4Hz<\/span>，最小值掃查時(shí)<\/span>25Hz
<\/span>材料聲速范圍
<\/strong>1000～<\/span>9999m/s<\/span>，<\/span>0.0394<\/span>～<\/span>0.3937in/us
<\/span>數(shù)據(jù)存儲
<\/strong>劃分5<\/span>個(gè)數(shù)組，可存儲<\/span>500<\/span>個(gè)厚度值
<\/span>工作語言
<\/strong>中文、英文
電源
<\/strong>兩節(jié)1.5V AA<\/span>電池
<\/span>當(dāng)電池電量不足時(shí)，有低電壓提示
操作時(shí)間
<\/strong>兩節(jié)5<\/span>號電池，使用時(shí)間可達(dá)<\/span>200<\/span>小時(shí)
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自動(dòng)關(guān)機(jī)
<\/strong>5分鐘無操作后自動(dòng)關(guān)機(jī)
<\/span>工作溫度
<\/strong>-10℃～<\/span>+50<\/span>℃，有特殊要求可達(dá)<\/span>-20<\/span>℃
<\/span>尺寸
<\/strong>149mm×<\/span>73mm<\/span>×<\/span>32mm (H<\/span>×<\/span>W<\/span>×<\/span>D)
<\/span>重量
<\/strong>含電池200g
<\/span>標(biāo)準(zhǔn)配置
<\/strong>UM-2測厚儀
<\/span>標(biāo)配探頭
儀器箱
兩節(jié)堿性電池
耦合劑
操作手冊
合格證
裝箱單
選配件<\/strong>
橡膠外套；眾多可供選擇的探頭；
校準(zhǔn)用階梯試塊；耦合劑及高溫耦合劑<\/td><\/tr><\/tbody><\/table><\/div><\/div><\/div>
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