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標準的相關規(guī)定

--準確度：±0.01mil(0.25μm)<1mil(25μm)

--精確度：1.2mil（30μm）時，達到1.0%（實驗室情況下）

--分辨率：0.01mils(0.1μm)

--校正方式:單點標準片校正

--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)傳輸至計算機或打印機

--統(tǒng)計數(shù)據(jù):量測點數(shù)、平均值、標準差、zui高值、zui低值、由打印機可輸出直方圖或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：

微電阻測試技術利用四根接觸式探針在表面銅箔上產生電信號進行測量，當探頭接觸銅箔樣品時，恒定電流通過外側兩根探針，而內側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，為牛津儀器產品

儀器的照明功能和探頭的保護罩方便測量時準確定位

CMI511手持式面銅測試儀配置包括：

CMI563主機

SRP-4探頭（含SRP-4探針）

NIST認證的校驗用標準片1套