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手持式面铜测试仪技术参数

--可测试zui小孔直径：35mils(899μm)

--测量厚度范围：0.08–4.0mils(1–102μm)

--电涡流原理：遵守ASTM-E376-96标准的相关规定

--准确度：±0.01mil(0.25μm)<1mil(25μm)

--精确度：1.2mil（30μm）时，达到1.0%（实验室情况下）

--分辨率：0.01mils(0.1μm)

--校正方式:单点标准片校正

--显示屏:高亮度液晶显示屏，1/2英吋(1.27mm)高

--单位:以按键切换公制(um)及英制(mils)单位选择

--连接口:RS-232连接口，用于将数据传输至计算机或打印机

--统计数据:量测点数、平均值、标准差、zui高值、zui低值、由打印机可输出直方图或CPK图

--储存量:2000条读数

--重量:9oZ(0.26Kg)含电池

--尺寸:149*794*302mm

CMI511手持式面铜测试仪仪器特点：

微电阻测试技术利用四根接触式探针在表面铜箔上产生电信号进行测量，当探头接触铜箔样品时，恒定电流通过外侧两根探针，而内侧两根探针测得该电压的变化值。根据欧姆定律，电压值被转换为电阻值，利用一定的函数，计算出厚度值。不受绝缘板层和线路板背面铜层影响

耗损的SRP-4探针可自行更换，为牛津仪器产品

仪器的照明功能和探头的保护罩方便测量时准确定位

CMI511手持式面铜测试仪配置包括：

CMI563主机

SRP-4探头（含SRP-4探针）

NIST认证的校验用标准片1套