体积电阻率表面电阻率测试仪
一、符合标准及适用范围：
A, conform to the standard and scope of application:
*符合国家标准GB1410－2006固体电工绝缘材料绝缘电阻、体积电阻系数和表面电阻试验方法，ASTM D257 绝缘材料的直流电阻或电导试验方法 等标准要求。本仪器配不同的测量电极（夹具）可以测量不同材料（固体、粉体或液体）的体积电阻率和表面电阻率或电导率。适用于橡胶、塑料、薄膜、及粉体、液体、及固体和膏体形状的各种绝缘材料体积和表面电阻值的测定。本仪器除能测电阻外，还能直接测量微弱电流。
Compley accord with national standard GB1410-2006 solid electrical insulating materials, volume resistivity and surface insulation resistance resistance test method, ASTM D257 dc resistance or conductance of the insulating material test methods such as standard requirement. The instrument with different measuring electrode (fixture) can measure different material (solid, powder or liquid) of the volume resistivity and surface resistivity or conductivity. Used in rubber, plastic, film, and powder, liquid, and solid and paste in the shape of all kinds of insulation materials and surface resistance measurement of volume. The instrument in addition to measuring the resistance, but also can directly measure the weak current.
二、技术指标：
Second, the technical indicators
1、电阻测量范围： 1×104Ω ～1×1018Ω。
1, the resistance measurement range: 1 x 104 x 1018 Ω Ω ~ 1.
2、电流测量范围： 2×10-4A～1×10-16A
2, current measuring range: 2 x 10-4 a ~ 1 x 10 to 16 a
3、显 示 方 式：数字液晶显示
3, show type: digital LCD display
4、内置测试电压： 10V 、50V、100V、250V、500V、1000V（任意切换）
4, built-in test voltage: 10 v, 50 v, 100 v, 250 v, 500 v, 1000 v switch (any)
5、基本准确度：1% (*注)
5, basic accuracy: 1% (*)
6、使用环境： 温度：0℃～40℃，相对湿度<80%
6, using the environment temperature: 0 ℃ to 40 ℃, relative humidity 80%
7、供电形式： AC 220V，50HZ，功耗约5W
7, power supply: AC 220 v, 50 hz, power consumption of about 5 w
8、仪器尺寸：150ｍｍ× 300ｍｍ× 450 mm
8, instrument size: 150 mm * 300 mm * 450 mm
9、质量： 约5KG
9, quality: about 5 kg
10、体积小、重量轻、准确度高，电阻、电流双显示，性能好稳定、读数方便
10, small volume, light weight, high accuracy, resistance and current double shows that good performance stability, easy reading
11、所有测试电压(10V/50V/100/250/500/1000V) 测试时电阻结果直读，免去老式高阻计在不同测试电压下或不同量程时要乘以系数等使用不便的麻烦，使测量超高电阻就如用万用表测量普通电阻样简便。
(10, 11, all test voltage 50 v/v/v 100/250/100/250) resistance when test results direct reading, removed from the old high resistance meter or different under different test voltage range should be multiplied by the coefficient such as difficult to use the trouble, make measuring high resistance as ordinary resistance is measured with a multimeter sample is simple.
三、工作原理：
Three, working principle
根据欧姆定律，被测电阻Rx等于施加电压V除以通过的电流I。传统的高阻计的工作原理是测量电压V固定，通过测量流过取样电阻的电流I来得到电阻值。从欧姆定律可以看出，由于电流I是与电阻成反比，而不是成正比，所以电阻的显示值是非线性的，即电阻无穷大时，电流为零，即表头的零位处是∞，其附近的刻度非常密，分辨率很低。整个刻度是非线性的。又由于测量不同的电阻时，其电压V也会有些变化，所以普通的高阻计是精度差、分辨率低。
According to the ohm's law, the resistance to be measured Rx is equal to the applied voltage V of the divided by the current through the I. Working principle of the traditional high resistance meter is to measure the voltage V fixed, by measuring the I current through the sampling resistor to get resistance. Can be seen from the ohm's law, due to the current (I) is inversely proportional to the resistance, rather than direct proportion, so the display value of resistance is nonlinear, when the resistance is infinite, current is zero, namely the header of the zero level is up, the scale is very near, resolution is very low. The whole calibration is nonlinear. By measuring the resistance of the different, its voltage V will be some changes, so ordinary high resistance meter is of poor accuracy and low resolution.
体积表面电阻率测试仪是同时测出电阻两端的电压V和流过电阻的电流I，通过内部的大规模集成电路完成电压除以电流的计算，然后把所得到的结果经过A/D转换后以数字显示出电阻值，即便是电阻两端的电压V和流过电阻的电流I是同时变化，其显示的电阻值不象普通高阻计那样因被测电压V的变化或电流Ｉ的变化而变，所以，即使测量电压、被测量电阻、电源电压等发生变化对其结果影响不大，其测量精度很高()，从理论上讲其误差可以做到零，而实际误差可以做到千分之几或万分之几。
The resistivity tester resistance is measured at the same time the station at the ends of the current through the resistor voltage V and I, through the internal voltage divided by the current calculation of large scale integrated circuit is complete, then put the results after A/D conversion to digital shows resistance, even at the ends of the resistance current through the resistor voltage V and I change at the same time, the display of the resistance is not like ordinary high resistance meter by measuring the change of the V voltage or current I change and change, so, even if the measured voltage, by measuring the resistance and voltage change has A little influence on the results, the measuring precision is very high (patent), in theory, the error can be zero, and the actual error can achieve A few parts per thousand or so few.
四、应用范围：
Range of application
材料高阻测试测量如防静电产品（防静电鞋、防静电塑料橡胶制品、计算机房防静电活动地板等）电阻值的检测；材料体电阻(率)和表面电阻(率)测量；电化学和材料测试,以及物理,光学和材料研究;微弱电流测量如光电效应和器件暗电流测量。
Material high resistance test measures such as anti-static products (anti-static shoes, anti-static plastic rubber products, anti-static raised floor, etc.) in the computer room resistance test; Material body resistance (rate) and surface resistance (rates) measurement; Electrochemical and material testing, as well as physics, optics and materials research; Weak electric current measure, such as the photoelectric effect and dark current measurement device.
五、标准配置：
Five, the standard configuration:
1、测试仪器：1台
1, test instruments: 1
2、电极箱：1台
2, electrode box: 1
2、电源线：1条
Article 2, the power cord: 1
3、测量线：3根（屏蔽线、测试接线、接地线）
3, measuring line: 3 root (shielded wire, test wiring and grounding line)
4、使用说明书：1份
4, operating instructions: 1
5、合格证：一份
5, certificate of approval: a
