绝缘材料体积表面电阻率测试仪

名称:绝缘材料体积表面电阻率测试仪

供应商:北京北广精仪仪器设备有限公司

价格:面议

最小起订量:1/台

地址:北京市海淀区上地科技园1号院

手机:14700415279

联系人:李经理 (请说在中科商务网上看到)

产品编号:79338718

更新时间:2016-01-11

发布者IP:222.128.170.138

详细说明

  BEST-121绝缘材料体积表面电阻率测试仪

  一、符合标准及适用范围:

  完全符合国家标准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。

  二、技术指标 :

  1.   电阻测量范围: 1×104Ω ~1×1018Ω,分为十个量程。

  2.   电流测量范围为2×10-4A ~1×10-16A

  3.   全数字液晶屏显示。

  4.   准确度: 准确度优于下表

  量程 有效显示范围 20~30℃ RH

  104 0.01~19.99 5%

  105 0.01~19.99 5%

  106 0.01~19.99 5%

  107 0.01~19.99 5%

  108 0.01~19.99 5%

  109 0.01~19.99 5%

  1010    0.01~19.99 5%+2字

  1011     0.01~19.99 5%+2字

  1012 0.01~19.99 5%+5字

  1013 0.01~19.99 10%+5字

  1014 0.01~19.99 10%+5字

  1014以上 0.01~19.99 10-15%+5字

  超出有效显示范围时误差有可能增加,测试电流准确度与电阻相同,测试电压准确度为 10%

  5. 使用环境: 温度 -10℃~50℃ 相对湿度

  6. 测试电压: DC10V、50V、100V、250V、500V、1000V。±10%

  7. 供电形式: AC 220V,50HZ,功耗约10W。

  8. 仪器尺寸: 300mm× 280mm× 150 mm。

  9. 质量: 约3.0KG。

  三、工作原理:

  根据欧姆定律,被测电阻R等于施加电压V除以通过的电流I。即   

  V

  R= ---

  I

  传统的仪器的工作原理是测量电压V固定,通过测量流过被测物体的电流I以标定电阻的刻度来读出电阻值。从上式可以看出,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,所以普通的高阻计的精度是很难提高的。

  BEST-121体积、表面电阻率测定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。

  符合标准及适用范围:

  Conform to the standard and scope of application:

  完全符合国家标准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。

  Completely 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.

  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。

  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.

  技术指标 :

  Technical indicators:

  1. 电阻测量范围: 1×104Ω ~1×1018Ω,分为十个量程。

  1. Resistance measurement range: 1 x 104 Ω ~ 1 x 1018 Ω, divided into ten range.

  2. 电流测量范围为2×10-4A ~1×10-16A

  2. The current measuring range is 2 x 10-4 a ~ 1 x 10 to 16 a

  3. 全数字液晶屏显示。

  3. The full digital LCD display.

  4. 准确度: 准确度优于下表

  4. Accuracy: the accuracy is better than that of the table below

  量程 有效显示范围 20~30℃ RH工作原理:

  Working principle:

  根据欧姆定律,被测电阻R等于施加电压V除以通过的电流I。即

  According to the ohm's law, the measured resistance R is equal to the applied voltage V of the divided by the current through the I. namely

  V

  V

  R= ---

  R = -

  I

  i.

  传统的仪器的工作原理是测量电压V固定,通过测量流过被测物体的电流I以标定电阻的刻度来读出电阻值。从上式可以看出,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,所以普通的高阻计的精度是很难提高的。

  The working principle of the traditional instrument is to measure the voltage V fixed, current through the measured object by measuring the I read resistance by calibration of resistance scale. Can be seen from the type, because the current 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 also will have some change, so the precision of the ordinary high resistance meter is difficult to improve.

  BEST-121体积、表面电阻率测定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。

  BEST - 121 volume and surface resistivity meter is to measure the resistance at the same time on both 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 high. In theory it can achieve zero error. The actual error can be done a few parts per thousand or very few.

  典型应用:

  1.测量防静电鞋、导电鞋的电阻值

  2、测量防静电材料的电阻及电阻率

  3、测量计算机房用活动地板的系统电阻值

  4、测量绝缘材料电阻(率)

  5、光电二极管暗电流测量

  6、物理,光学和材料研究

  标准配置:

  1.测试仪器:1台

  2.电源线:1条

  3.测量线:3根(屏蔽线、测试接线、接地线)

  4.使用说明书:1份

  5.产品合格证:1份