专业生产体积表面电阻率测量仪

一.体积电阻率表面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。
 
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。
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
二、使用说明
（一）SB36应满足下例要求：
1、测试电压范围应包括：100V~500V
2、SB36测量范围应包括：1×106Ω~1×1017Ω
3、阻值大于1012Ω时，测量误差应小于±20%，阻值不大于1012Ω时，测量误差应小于±10%。
4、输入接线的绝缘电阻应大于仪器输入电阻的100倍。
5、测试时试样及测量导线应有良好。
6、仪器应定期进行校验。
（二）准备工作：
1、取被测液体（如：增塑剂）试样50ml。
2、试样应在温度23±2℃，相对湿度65±5%的条件下处理2小时以上。
（三）测试步骤：
1、测试温度23±2℃，相对湿度65±5%，无外界电磁场干扰环境中进行。
2、测试时对试样所加电压为100V~500V的直流电压，选择电压档次。
3、将试样倒入高压电极内，使液面刚好和环电极下缘全部接触为止。
4、将充分放电后的试样和电极，按SB36型固体（液体）体积及表面电阻率测试仪要求接线。
  外电极（高压电极）接高固体（液体）体积及表面电阻率测试仪的高压输出端。
  内电极（测量电极）接固体（液体）体积及表面电阻率测试仪的测量端。
  中电极（环电极）接固体（液体）体积及表面电阻率测试仪的接地端。
5、仪器预热30分钟，稳定后调整仪器（调零），加上试验1分钟，读取电阻指示值，然后放电1分钟，再测试一次，以?二次的算术平均值作为试验样品电阻指示值。
（四）计算方法：
按式（1）计算体积电阻系数（pv）,计算结果取二位有效数字。
（五）注意事项：
1、测定电极必须放置在高绝缘的垫板上。
2、测定电极在测试前后，均应做好清洗工作，特别是三只电极的支撑件不得受到试样的污染。
三、注意事项

1仪器操作前请您仔细阅读使用说明书，规范操作。

2轻拿轻放，避免仪器震动，水平放置，垂直测量。

3仪器不使用时请切断电源，连接线无需经常拔下，避免灰尘进入航空插头引起短接等现象。

4探针笔测试结束，套好护套，避免人为断针。

四、SB68固体体积电阻率及表面电阻率测试仪是根据GB/T 1410-2006《固体绝缘材料体积电阻率和表面电阻率试验方法》（等同IEC 60093）和GB/T 10064-2006《测

量固体绝缘材料绝缘电阻的实验方法》（等同IEC 60167）而设计和制造的。集高阻和微电流功能为一体的测量仪器。主要用于各种绝缘材料的体积电阻率、表面电阻率和

绝缘电阻及微电流的测量。
五、体积电阻率表面电阻率测定仪概述
本仪器是既可测量高电阻，又可测微电流。采用了美国In公司的大规模集成电路以及技术,使仪器体积小、重量轻、准确度高。以双3.1/2 位数字直接显示电阻的

高阻计和电流。量限从1×104Ω ～1×1018 Ω，是目前国内测量范围zui宽，准确度zui高的数字超高阻测量仪。电流测量范围为2×10-4 ～1×10-16Ａ。机内测试电压为

10/50/100/250/500/1000V任意可调。本仪器具有精度高、显示迅速、性好稳定、读数方便， 适用于防静电产品如防静电鞋、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验以及绝缘材料和电子电器产品的绝缘电阻测量。本仪器除能测电阻外，还能直接测量微弱电流。
 
仪*符合并优于国家标准GB1410《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》和美国标准ASTM D257《绝缘材料的直流电阻或电导试验方法

》等标准的要求。
六、体积电阻率表面电阻率测试仪主要特点
电阻测量范围宽 0.01×104Ω ～1×1018 Ω
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（10/50/100/250/500/1000V） 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
 
适用范围广:适用于防静电产品如防静电鞋、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验和电子电器产品的绝缘电阻测量
七、体积电阻率表面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. 双表头显示: 3.1/2位LED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: 10/50/100/250/500/1000V 任意切换
8.供电形式: AC 220V，50HZ，功耗约5W                                                                                                                                                                                           

仪仪器有限公司是从事专业测量仪器以及相关设备的研发、生产、销售、于一体是*股份企业，并按照现代化经营管理实现企业化经营管理模式

走向股份制正规
化企业，公司经过*发展，现已拥有独立的研发队伍并已有海内外专家入注进行产品的研发与设计。

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公司拥有一支优秀的技术团队，并秉成“创新、精准、高效、跨越”的文化理念逐步打造成为*的仪器检测公司。 同时北广公司强大的售后队伍会对消费者进行全程的
优质服务， 以确保您的*！

中国检测行业与验证服务的*者和智领者，帮助众多检测质检单位和学校教研单位提供一站式的全面质量解决方案。

我公司现有技术人员170人其中 专业研发人员占%15专业技术人员占%25 专业售后人员占%30

北广精仪仪器设备有限公司的经营理念：

   一、诚信待户 顾客*      全心全意为顾客考虑，使顾客能切身感受到人性化的仪器。
 

  二、精准检测 保质保量      精准检测是我们的责任 保质保量是我们对客户的郑重承诺

  三、技术 创新理念   储备*的开发人才，引进，采用*的设计理念，打造zui精良的检测仪器。

 
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北广公司其它绝缘材料检测仪器:

BDJC-0-100KV 介电击穿试验仪

BDJC系列绝缘材料工频率介电击穿试验仪

BDJC系列电压介电强度试验仪器

BDJC系列 电压击穿试验仪

BDJC系列绝缘漆漆膜击穿强度试验仪

BDJC电容器纸工频电压击穿试验仪

EST-121 体积表面电阻率测定仪

GDAT-A介质损耗测试仪/介电常数测试仪

GDAT-C新型介电常数介质损耗测试仪

BDH 耐漏电起痕试验仪
Volume resistivity of surface resistivity tester
Digital high resistance, a current measuring instrument type: EST-121: volume resistivity, surface resistivity uses: Instrumentation Test
One, volume resistivity surface resistivity tester overview
This instrument can measure high resistance, and measuring current. The American company In large scale integrated circuit and patented technology, the instrument has the advantages of small volume, light weight, high accuracy. Dual 3.1/2 digital display the resistance high resistance meter and current. Limit from 1× 104 Ω～ 1× 1018 Ω, is currently the most wide measurement range, the most accurate digital ultra high resistance meter. Current measurement range of 2× 10-4 ～ 1× 10-16A. The built-in test voltage is 10/50/100/250/500/1000V adjustable. The instrument has the advantages of high precision, good stability, showing a rapid, easy reading, applied to anti-static products such as anti-static shoes, anti-static plastic rubber products, computer room anti-static floor activities such as the resistance value of the test as well as insulating materials electrical and electronic products insulation resistance measurement. The instrument can measure the resistance, and can directly measure the weak current.
Instrument is fully consistent with and better than the national standard GB1410 " solid electrical insulating materials, insulation resistance, volume resistivity and surface resistance test method " and " American Standard ASTM D257 DC resistance or conductance of insulating materials test methods " and other standards.
Two, volume resistivity surface resistivity tester main features
Resistance measuring range 0.01× 104 Ω～ 1× 1018 Ω
Current measurement range of 2× 10-4A ～ 1× 10-16A
Small volume, light weight, high accuracy
Resistance, current double display
Good performance is stable, easy reading
All the test voltage （ 10/50/100/250/500/1000V ） test resistance results in reading, is removed from the old high resistance meter in different test voltage or different scale should be multiplied by the coefficient of the inconvenient trouble, allowing the measurement of 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
Wide application: applied to anti-static products such as anti-static shoes, anti-static plastic rubber products, computer room anti-static floor activities such as resistance testing electrical and electronic products insulation resistance measurement
Three, volume resistivity surface resistivity tester technical indicators
The 1 resistor measurement range: 0.01× 104 Ω～ 1× 1018 Ω.
The 2 current measurement range : 2 × 10-4A～ 1 × 10-16A
3 double header display: 3.1/2 LED display
4 built-in test voltage: 10V, 50V, 100V, 250, 500, 1000V
5 basic accuracy: 1% （ note ）
6: use environment temperature: 0℃ ~ 40 ℃, relative humidity <80%
7 built-in test voltage: 10/50/100/250/500/1000V arbitrary switching
The 8 power supply forms: AC 220V, 50HZ, power consumption is about 5W
Four, volume resistivity surface resistivity meter working principle
According to the Ohm's law, the measured resistance is equal to voltage is applied through Rx V divided by the current I. The traditional high resistance meter is the working principle of measuring voltage V fixed, by measuring the current flows through the sampling resistor I to get the value of resistance. From Ohm's law can be seen, because the current I is inversely proportional to the resistance, but not proportional to the resistance, so the display value is nonlinear, namely the resistance to infinity, the current is zero, i.e., zero is∞, in the vicinity of the scale is very dense, with a low resolution. The scale is nonlinear. Because the measurement of different resistance, the voltage V also vary, so the average high resistance meter is poor accuracy, low resolution.
At the same time measure the voltage across the resistor V and the current through the resistor I, through the interior of the large scale integrated circuit to complete the voltage divided by the current calculation, and then the results obtained after A/D conversion to digital show resistance, even if the voltage across the resistor V and the current through the resistor I is changed at the same time, the display resistance value is not as common due to high resistance meter that measured voltage or current change of V I change, so, even if the measured voltage, resistance, power supply voltage is measured the changes in the results have little effect, the measurement accuracy is very high （ patent ）, theoretically the error can be zero, while the actual error can be done a few thousandths or extremely few.
Typical application
1 measurements of anti-static shoes, conductive shoes resistance value
2, measurement of the antistatic material resistance and resistivity
3, measurement computer room with movable floor system resistance
4, measurement of insulation resistance （ rate）
5, photodiode dark current measurement
6, physics, optics and materials research
Canton company other insulating materials testing instruments:
BDJC-0-100KV dielectric breakdown testing instrument
BDJC series insulating materials at power frequencies of dielectric breakdown test instrument
BDJC series voltage dielectric strength test apparatus
BDJC series voltage breakdown testing instrument
BDJC series insulating paint film breakdown strength tester
BDJC capacitor voltage breakdown testing instrument
EST-121 volume surface resistivity measuring instrument
GDAT-A dielectric loss tester / dielectric constant test
GDAT-C model dielectric constant dielectric loss tester
BDH leakage resistance tester
BDH-B arc resistance tester
China Inspection and certification services tip and inlectual leader, helped many testing quality inspection units and schools and research units to provide comprehensive one-stop quality solutions.
Pay attention to every detail is Canton company for each customer commitment, and North Canton company has been pursuing the aim of. Beijing North Canton precision instrument equipment limited