体积电阻率测定仪

三、技术指标              

1、电阻测量范围： 1.0×10⁴Ω ～1×10¹⁸Ω。

   Resistance Measuring Range: 1.0 × 104Ω ~ 1 × 1018Ω.

2、电流测量范围为： 2×10^-4A～1×10^-16A

   Current measurement range: 2 × 10-4A ~ 1 × 10-16A

3、显 示 方 式：数字液晶显示

   Display mode: Digital LCD

4、内置测试电压： 10V 、50V、100V、250、500、1000V

   Built-in test voltage: 10V, 50V, 100V, 250,500,1000 V

5、基本准确度：1% (*注)

   Basic accuracy: 1% (* Note)

6、使用环境： 温度：0℃～40℃，相对湿度<80%

  Operating environment: Temperature: 0 ℃ ~ 40 ℃, relative humidity<80%

7、机内测试电压： 10V/50V/100/250/500/1000V 任意切换

   In Test voltage: 10V/50V/100/250/500/1000V arbitrary switching

8、供电形式： AC 220V，50HZ，功耗约5W

   Supply form: AC 220V, 50HZ, power consumption is about 5W

9、仪器尺寸： 285ｍｍ× 245ｍｍ× 120 mm

   Instrument Size: 285mm × 245mm × 120 mm

10、质量： 约2.5KG

    Weight: about 2.5KG

四、工作原理

   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 Ohm's law, the measured resistance Rx is equal to the applied voltage V divided by the current through the I. The traditional high impedance meter works by measuring the voltage V fixed by measuring the current flowing through the sampling resistor I to get the resistance value. As can be seen from Ohm's law, since the current I is inversely proportional to the resistance, rather than proportional to the resistor value displayed is nonlinear, i.e. infinite resistance, the current is zero, that the header is at zero ∞, its the scale is very close to dense, low resolution. Entire scale is nonlinear. Also, because the resistance of different measurement, the voltage V will be some variation, so the ordinary differential impedance meter is the precision, low resolution.

本仪器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(zl)，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 instrument is also measure the voltage V across the resistor and a current flowing through the resistor I, large scale integrated circuit via the internal voltage divided by current calculation completion, then the results obtained after A / D conversion to digital display resistor value, even the voltage V across the resistor and the current I flowing through the resistor is changed simultaneously, which shows the resistance value is not as common as a result of taking into account the measured impedance changes or voltage V and the variation of the current I, therefore, even if the measuring voltage, resistance is measured, and power supply voltage changes little effect on its results, the measurement accuracy is high (patent), in theory the error can be zero, the actual errors can be done a few thousandths or very few.

典型应用

1、测量绝缘材料电阻、体积电阻、表面电阻(率)

   Measuring insulation resistance, volume resistivity, surface resistance (rate)

2、测量防静电材料的电阻及电阻率

   Measuring the resistance and anti-static material resistivity

3、测量计算机房用活动地板的系统电阻值

   Measuring computer room raised floor system with resistance values

4、测量防静电鞋、导电鞋的电阻值

   Measuring anti-static shoes, conductive shoes resistance values

5、光电二极管暗电流测量

   Photodiode dark current measurement

6、物理,光学和材料研究

   Physics, optics and materials research

标准配置：                     

1、测试仪器：1台

   Test equipment: 1 set

2、电源线：1条

   Power cord: 1

3、测量线：3根（屏蔽线、测试接线、接地线）

   Measuring line: 3 (shielded wire, test wiring, grounding wire)

4、使用说明书：1份

   Instructions: 1

备注：

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，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。

Remarks:

The instrument is equipped with different measuring electrode (fixtures) can measure different materials (solid, powder or liquid) volume resistivity and surface resistivity or conductivity, in full compliance with the national standard GB1410-2006 solid electrical insulation materials insulation resistance, volume resistance and surface resistivity test method, ASTM D257 DC insulation resistance or conductance standard test methods.

五．电性能专业检测试验机列表

电压击穿试验仪（10-150KV）

漏电起痕试验仪

介电常数及介质损耗测试仪-高频/工频

耐电弧测试仪-微机控制/触摸屏

电阻率测定仪