硅胶片体积电阻率测试仪既可测量高电阻,又可测微电流。采用了美国In公司的大规模集成电路,使仪器体积小,重量轻准确度高。数字液晶直接显示电阻值和电流。量限从1×104Ω ～1×1018 Ω,是目前国内测量范围Z宽,准确度Z高的数字超高阻测量仪。电流测量范围为2×10-4 ～1×10-16Ａ。机内测试电压10V/50V/100V/250V/500V/1000V任意可调。
（BEST-121）符合标准及适用范围：
First, meet the standards and scope of application:
硅胶片体积电阻率测试仪*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。硅胶片体积电阻率测试仪配不同的测量电极（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。
In full compliance with national standards GB14102006 solid electrical insulation insulation resistance, volume resistivity and surface resistance test method of material ASTM, D257 DC resistance or conductance of insulating materials test methods such as standard. The instrument can be used to measure the volume resistivity and surface resistivity or conductivity of different materials (solid, powder or liquid). Suitable for the determination of the volume and surface resistivity of insulating materials of rubber, plastics, films, powders, liquids, and solids and pastes. This instrument can measure the resistance, but also can directly measure the weak current.
技术指标：
Two, technical indicators
序号 项目 参数
Item parameter
1 电阻测量范围 1×104Ω ～1×1018Ω
1 resistance measurement range 1 x 104 x ~ 1 * 1018
2 电流测量范围 2×10-4A～1×10-16A
2 current measurement range 2 x 10-4A ~ 1 * 10-16A
3 显 示 方 式 数字液晶显示
3 display mode digital LCD display
4 内置测试电压 10V 、50V、100V、250V、500V、1000V
4 built-in test voltage 10V, 50V, 100V, 250V, 500V, 1000V
5 基本准确度 1%
5 basic accuracy 1%
6 使用环境 温度：0℃～40℃，相对湿度<80%
6 use the ambient temperature: 0 degrees C to 40 C, relative humidity <80%
7 供电形式 AC 220V，50HZ，功耗约5W
7 power supply form AC 220V, 50HZ, power consumption is about 5W
8 仪器尺寸 285ｍｍ× 245ｍｍ× 120 mm
8 instrument size 285mm * 245mm * 120 mm
9 质量 约5KG
9 mass of about 5KG
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 size, light weight, high accuracy, resistance, current double display, good performance and stability, easy reading
11 使测量超高电阻就如用万用表测量普通电阻样简便 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
11 so that the measurement of the high resistance such as multimeter measurement of the general resistance of the sample is simple and easy to replace the old high resistance meter in different test voltages or different ranges to multiply the coefficient of the use of inconvenient trouble
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。涂层/涂料表面电阻/表面电阻率测试仪
According to Ohm's law, the measured resistance Rx is equal to the applied voltage V divided by the current I. The traditional working principle of high resistance meter is to measure the voltage V fixed, by measuring the current through the sampling resistor I to get the resistance value. From Ohm's law can be seen as the current I is inversely proportional to the resistance, but not proportional, so is nonlinear resistance display value is infinite resistance when the current is zero, which is zero at the header is infinite, the scale near the very dense, low resolution. The whole scale is nonlinear. And because the measurement of different resistance, the voltage V will also have some change, so the ordinary high resistance meter is the poor accuracy, low resolution.
本台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。
This station is current resistivity tester V and resistor voltage across the resistor I measured at the same time, the large scale integrated circuit to complete the calculation of the internal voltage divided by the current, and then the results obtained after A/D conversion by the digital display of the resistance value, even if the current flowing through the resistor voltage V and two end resistance I is the change at the same time, the resistance value is not displayed as ordinary high resistance meter as a result of changes in the measured voltage or current change of V and I, so even if the measurement voltage, resistance, power supply voltage is measured and the change of the impact is not big, the measurement accuracy is very high (patent), from theory speaking of the error is zero, while the actual error can be done a few thousandths or very few.
四、典型应用：
Four, typical applications
1、测量绝缘材料电阻(率)
1, measuring insulation resistance (rate)
2、测量防静电材料的电阻及电阻率
2. Measure the resistance and resistivity of antistatic material
3、测量计算机房用活动地板的系统电阻值
3. Measure the system resistance value of the movable floor of the computer room
4、测量防静电鞋、导电鞋的电阻值
4. Measure the resistance value of anti-static shoes and conductive shoes
5、光电二极管暗电流测量
5, photodiode dark current measurement
6、物理,光学和材料研究
6, physics, optics and materials research
五、标准配置：
Five, the standard configuration:
序号 配置 单位 数量
Serial number
1 测试仪器 台 1
1 test instrument 1
2 电极箱 台 1
2 electrode box 1
3 电源线 条 1
3 power cord 1
4 测量线 条 3
4 measurement line 3
5 使用说明书 份 1
5 instruction manual 1
