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（北京北广精仪仪器设备有限公司，专业的绝缘材料电性能设备供应商）
一,漆膜表面体积电阻率测试仪概述：
既可测量高电阻,又可测微电流。采用了美国Intel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宽,准确度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。本仪器具有精度高,显示迅速,性好稳定,读数方便. 适用于橡胶,塑料,薄膜,地毯,织物及粉体,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。
二,漆膜表面体积电阻率测试仪主要特点：
电阻测量范围宽 1×104Ω ～1×1018Ω
电流测量范围为 2×10-4Ａ ～1×10-16Ａ
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
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。既能测超高电阻又能测微电流
三,漆膜表面体积电阻率测试仪技术指标
1,电阻测量范围： 0.01×104Ω ～1×1018Ω。
2,电流测量范围为： 2×10-4A～1×10-16A
3,显 示 方 式：数字液晶显示
4,内置测试电压： 10V ,50V,100V,250,500,1000V
5,基本准确度：1% (*注)
6,使用环境： 温度：0℃～40℃,相对湿度<80%
7,机内测试电压： 10V/50V/100/250/500/1000V 任意切换
8,供电形式： AC 220V,50HZ,功耗约5W
9,仪器尺寸： 285ｍｍ× 245ｍｍ× 120 mm
10,雷竞技百科
： 约5KG
四,漆膜表面体积电阻率测试仪工作原理
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。
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。
漆膜表面体积电阻率测试仪典型应用
1,测量绝缘材料电阻(率)
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,测量防静电鞋,导电鞋的电阻值
5,光电二极管暗电流测量
6,物理,光学和材料研究
漆膜表面体积电阻率测试仪标准配置：
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
First, an overview
Can measure high resistance, and measuring current. Using the United States Intel company's large scale integrated circuit, so that the instrument is small in size and light in weight. Digital liquid crystal display direct current resistance and current. The measurement range is from 1 * 104 to 1 * 1018, which is the most wide measurement range and the highest accuracy. The current measurement range is 2 * 10-4 ~ 1 * 10-16A. Machine test voltage 10V/50V/100V/250V/500V/1000V arbitrary adjustable. The instrument has the advantages of high precision, rapid, good stability, convenient for reading. For in rubber, plastic film, carpet, fabric and powders, liquids and solids and cream body shape of various insulating materials volume and surface resistivity value determination.
Two, the main features
Resistance measurement range x 104 x 1 x 1018 x 1
The current measurement range is 2 * 10-4A ~ 1 * 10-16A
Small in size, light in weight and high in accuracy.
Resistance, current dual display
Good performance and stable, easy to read
All the test voltage (10V/50V/100/250/500/1000V) to test the resistance results in reading, replacing the old high resistance meter in different test voltage or different scale to multiplied by the coefficient of use inconvenience trouble, enable the measurement of ultra high resistance as the multimeter is used to measure the general resistance of samples is simple. Not only can measure high resistance and micro current
Three, technical indicators
1, resistance measurement range: 0.01 * 104 ~ 1 * 1018.
2, the current measurement range is: 2 * 10-4A ~ 1 * 10-16A
3, display mode: Digital LCD display
4, built-in test voltage: 10V, 50V, 100V, 2505001000V
5, basic accuracy: 1% (* Note)
6, the use of the environment: temperature: 0 degrees Celsius to 40 degrees Celsius, the relative humidity of <80%
7, the machine test voltage: 10V/50V/100/250/500/1000V arbitrary switching
8, the form of power supply: 220V AC, 50HZ, power consumption is about 5W
9, instrument size: 285mm * 245mm * 120 mm
10, quality: about 5KG
Four, working principle
According to Ohm's law, the measured resistance Rx is equal to the applied voltage V divided by the current I. The traditional high resistance meter works is the measurement of the voltage V fixed, by measuring the flow through the sampling resistance of the current I to get the resistance value. Can be seen from Ohm's law, due to the current I is inversely proportional to the resistance, and not directly proportional to, so the resistance to the display value is nonlinear, the resistance is infinite, the current is zero, namely header zero is infinity, near the scale is very close, the resolution is too low. The whole scale is nonlinear. And since the measurement of different resistance, the voltage V will be some changes, so the average high resistance meter is poor accuracy, low resolution.
This instrument is the current flowing through the resistor V and the 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 voltage V and the flow resistance of the two ends of the I is changed at the same time, the resistance value is not displayed as ordinary high resistance meter as a result of the measured voltage or current change of V I variation, so, even if the measured voltage, by measuring the resistance, the power supply voltage changes have little effect on the results, the measurement accuracy is very high (patent), theoretically the error can be zero, while the actual error can be done a few thousandths or very few.
Typical applications
1, measuring the resistance of insulating materials (rate)
2, measuring the resistance and resistivity of antistatic materials
3, measuring the system resistance value of the computer room floor
4, measure the anti-static shoes, the resistance value of conductive shoes
5. Dark current measurement of photodiode
6, physics, optics and materials research
Standard configuration:
1, test equipment: 1 sets
2, power cord: 1
3, measuring line: 3 (shielding wire, test wiring, grounding wire)
4, the instruction manual: 1 copies
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