They work equally well on double-sided and multilayer boards, even through Tin and Tin/Lead resist. The CMI511 Series has an exclusive CMI temperature compensation feature for in-process thickness measurement. That means no more scrap or costly rework. Oxford Instruments offers a worldwide network of support and service. Like all our instruments, the CMI511 is backed by our guarantee of superior service before and after you order. • Simple to use • Complete Oxford Instruments service and support • Accurate, right out of the bath Automatically corrects measurements for temperature even when a board has just been lifted from the plating tank. Factory calibrated... requires no standards. Instantaneous measurements...no operator training necessary. Carrying case features a plastic window to permit gauge use without removal from case.

CMI511手持式面銅測試儀技術(shù)參數(shù)

--可測試zui小孔直徑：35mils(899μm)

--測量厚度范圍：0.08–4.0mils(1–102μm)

--電渦流原理：遵守ASTM-E376-96標(biāo)準(zhǔn)的相關(guān)規(guī)定

--準(zhǔn)確度：±0.01mil(0.25μm)<1mil(25μm)

--精確度：1.2mil（30μm）時，達(dá)到1.0%（實驗室情況下）

--分辨率：0.01mils(0.1μm)

--校正方式:單點(diǎn)標(biāo)準(zhǔn)片校正

--顯示屏:高亮度液晶顯示屏，1/2英吋(1.27mm)高

--單位:以按鍵切換公制(um)及英制(mils)單位選擇

--連接口:RS-232連接口，用于將數(shù)據(jù)傳輸至計算機(jī)或打印機(jī)

--統(tǒng)計數(shù)據(jù):量測點(diǎn)數(shù)、平均值、標(biāo)準(zhǔn)差、zui高值、zui低值、由打印機(jī)可輸出直方圖或CPK圖

--儲存量:2000條讀數(shù)

--重量:9oZ(0.26Kg)含電池

--尺寸:149*794*302mm

CMI511手持式面銅測試儀儀器特點(diǎn)：

微電阻測試技術(shù)利用四根接觸式探針在表面銅箔上產(chǎn)生電信號進(jìn)行測量，當(dāng)探頭接觸銅箔樣品時，恒定電流通過外側(cè)兩根探針，而內(nèi)側(cè)兩根探針測得該電壓的變化值。根據(jù)歐姆定律，電壓值被轉(zhuǎn)換為電阻值，利用一定的函數(shù)，計算出厚度值。不受絕緣板層和線路板背面銅層影響

耗損的SRP-4探針可自行更換，為牛津儀器產(chǎn)品

儀器的照明功能和探頭的保護(hù)罩方便測量時準(zhǔn)確定位

CMI511手持式面銅測試儀配置包括：

CMI563主機(jī)

SRP-4探頭（含SRP-4探針）

NIST認(rèn)證的校驗用標(biāo)準(zhǔn)片1套