产品详情
  • 产品名称:高精度电阻率测定仪

  • 产品型号:GEST-121
  • 产品厂商:冠测仪器
  • 产品价格:0
  • 折扣价格:0
  • 产品文档:
你添加了1件商品 查看购物车
简单介绍:
高精度电阻率测定仪;高电阻微电流测定仪量限从1×104Ω ~1×1018 Ω,是目前国内测量范围*宽,准确度*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10V/50V/100V/250V/500V/1000V任意可调。
详情介绍:

已知物体的电阻,可由电阻率ρ、长度 l 与截面面积 A 计算:

 

绝缘材料体积表面电阻测定仪

Insulating material volume surface resistance tester

The technical scheme

GEST-121

 高精度电阻率测定仪

体积表面电阻测定仪(GEST-121

Volume and surface resistance tester (GEST - 121)

符合标准:

         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》

         ASTM D257-99《绝缘材料的直流电阻或电导试验方法》

         GB/T 10581-2006 《绝缘材料在高温下电阻和电阻率的试验方法》

GB/T 1692-2008 《硫化橡胶 绝缘电阻率的测定》

GB/T 2439-2001《硫化橡胶或热塑性橡胶 导电性能和耗散性能电阻率的测定》

GB/T 12703.4-2010 《纺织品  静电性能的评定  第4部分:电阻率》

GB/T 10064-2006_《测定固体绝缘材料绝缘电阻的试验方法》

Conform to the standard:

GB/T 1410-1410 "solid insulating material volume resistivity and surface resistivity test method"

ASTM D257-99 "dc resistance or conductance method for insulation materials,

GB/T 10581-10581 "insulation resistance at high temperature and resistivity test method"

GB/T 1692-1692 "determination of the vulcanized rubber insulation resistivity,

GB/T 2439-2439 "vulcanized rubber and thermoplastic rubber conductive performance and dissipation performance resistivity measurement"

GB/T 12703.4 2010 "textile assessing part 4: the performance of electrostatic resistivity,

GB/T 10064-2006 _ "test method for determination of solid insulation insulation resistance, 

一、概述

本仪器既可测量高电阻,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*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、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。

高精度电阻率测定仪 

二、主要特点

电阻测量范围宽  1×104Ω 1×1018Ω

电流测量范围为 2×10-4 1×10-16

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

Second, the main characteristics

Wide range of resistance measurement 1 x 104 x 1018 Ω Ω ~ 1

Current measuring range is 2 x 10-4 a ~ 1 x 10 to 16 a

Small volume, light weight, high accuracy

Resistance and current double display

Good performance stability, easy reading

All the test voltage (10 v / 50 v / 100/250/100/250 v) resistance when test results direct reading, removed from the old high resistance meter under different test voltage or range should be multiplied by the coefficient of different use inconvenience trouble, such as the measuring high resistance as ordinary resistance is measured with a multimeter sample is simple.

Both can measure high resistance and can test the micro current

 高精度电阻率测定仪

三、技术指标              

1、电阻测量范围: 1.0×104Ω 1×1018Ω。

2、电流测量范围为: 2×10-4A1×10-16A

3、显 式:数字液晶显示

4、内置测试电压: 10V 50V100V2505001000V

5、基本准确度:1% (*)

6、使用环境: 温度:040,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 220V50HZ,功耗约5W

9、仪器尺寸: 285mm× 245mm× 120 mm

10、质量: 2.5KG

Third, technical indicators

1, resistance measuring range: 1.0 x 104 x 1018 Ω Ω ~ 1.

2, current measuring range is: 2 x 10-4 a ~ 1 x 10 to 16 a

3, show type: digital LCD display

4, built-in test voltage: 10 v, 50, 250, 500 v, 100 v and 1000 v

5, basic accuracy: 1% (*)

6, using the environment temperature: 0 to 40 , relative humidity < 80%

7, built-in test voltage: 10 v / 50 v / 100/250/100/250 v arbitrary switching

8, power supply: AC 220 v, 50 hz, power consumption of about 5 w

9, instrument size: 285 mm * 245 mm * 120 mm

10, quality: about 2.5 KG

 

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。

Four, principle of work

According to the ohm's law, the resistance to be measured Rx is equal to the applied voltage V of the divided by the current through the I. Working principle of the traditional high resistance meter is to measure the voltage V fixed, by measuring the I current through the sampling resistor to get resistance. I can be seen from the ohm's law, 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 ordinary high resistance meter is of poor accuracy and 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(),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。

高精度电阻率测定仪典型应用

1、测量绝缘材料电阻、体积电阻、表面电阻()

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

标准配置:                     

1、测试仪器:1

2.电源线:1

3、测量线:3根(屏蔽线、测试接线、接地线)

4、使用说明书:1

Standard configuration:

1, test instruments: 1

Article 2. The power cord: 1

3, measuring line: 3 root (shielded wire, test wiring and grounding line)

4, operating 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GB14102006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。

 高精度电阻率测定仪详情请来电咨询!

 

 

标题:
内容:
联系人:
联系电话:
Email:
公司名称:
联系地址:
 
 
注:1.可以使用快捷键Alt+S或Ctrl+Enter发送信息!
2.如有必要,请您留下您的详细联系方式!