塑料體積表面電阻率測(cè)試儀BEST-121

塑料體積表面電阻率測(cè)試儀符合標(biāo)準(zhǔn)：

GB/T 1410-2006《 固體絕緣材料體積電阻率和表面電阻率試驗(yàn)方法》

ASTM D257-99《絕緣材料的直流電阻或電導(dǎo)試驗(yàn)方法》

GB/T 10581-2006 《絕緣材料在高溫下電阻和電阻率的試驗(yàn)方法》

GB/T 1692-2008 《硫化橡膠 絕緣電阻率的測(cè)定》

GB/T 2439-2001《硫化橡膠或熱塑性橡膠 導(dǎo)電性能和耗散性能電阻率的測(cè)定》

GB/T 12703.4-2010 《紡織品 靜電性能的評(píng)定 第４部分：電阻率》

GB/T 10064-2006_《測(cè)定固體絕緣材料絕緣電阻的試驗(yàn)方法》

概述：

本儀器既可測(cè)量高電阻，又可測(cè)微電流。采用了美國(guó)In公司的大規(guī)模集成電路,使儀器體積小、重量輕

準(zhǔn)確度高。數(shù)字液晶直接顯示電阻值和電流。量限從1×104Ω ～1×1018 Ω，是目前國(guó)內(nèi)測(cè)量范圍zui寬，準(zhǔn)確

度zui高的數(shù)字超高阻測(cè)量?jī)x。電流測(cè)量范圍為2×10-4 ～1×10-16Ａ。機(jī)內(nèi)測(cè)試電壓為

10V/50V/100V/250V/500V/1000V任意可調(diào)。本儀器具有精度高、顯示迅速、性好穩(wěn)定、讀數(shù)方便， 

主要特點(diǎn):

電阻測(cè)量范圍寬 1×104Ω ～1×1018Ω

電流測(cè)量范圍為 2×10-4Ａ ～1×10-16Ａ

體積小、重量輕、準(zhǔn)確度高

電阻、電流雙顯示

性能好穩(wěn)定、讀數(shù)方便

所有測(cè)試電壓(10V/50V/100/250/500/1000V) 測(cè)試時(shí)電阻結(jié)果直讀，免去老式高阻計(jì)在不同測(cè)試電壓下或

不同量程時(shí)要乘以系數(shù)等使用不便的麻煩，使測(cè)量超高電阻就如用萬(wàn)用表測(cè)量普通電阻樣簡(jiǎn)便。

既能測(cè)超高電阻又能測(cè)微電流

技術(shù)指標(biāo):

1、電阻測(cè)量范圍： 0.01×104Ω ～1×1018Ω。

2、電流測(cè)量范圍為： 2×10-4A～1×10-16A

3、顯 示 方 式：數(shù)字液晶顯示

4、內(nèi)置測(cè)試電壓： 10V 、50V、100V、250、500、1000V

5、基本準(zhǔn)確度：1% (*注)

6、使用環(huán)境： 溫度：0℃～40℃，相對(duì)濕度<80%

7、機(jī)內(nèi)測(cè)試電壓： 10V/50V/100/250/500/1000V 任意切換

8、供電形式： AC 220V，50HZ，功耗約5W

9、儀器尺寸： 285ｍｍ× 245ｍｍ× 120 mm

10、質(zhì)量： 約2.5KG

工作原理:

根據(jù)歐姆定律，被測(cè)電阻Rx等于施加電壓V除以通過(guò)的電流I。傳統(tǒng)的高阻計(jì)的工作原理是測(cè)量電壓V

固定，通過(guò)測(cè)量流過(guò)取樣電阻的電流I來(lái)得到電阻值。從歐姆定律可以看出，由于電流I是與電阻成反比，

而不是成正比，所以電阻的顯示值是非線性的，即電阻無(wú)窮大時(shí)，電流為零，即表頭的零位處是∞，其

附近的刻度非常密，分辨率很低。整個(gè)刻度是非線性的。又由于測(cè)量不同的電阻時(shí)，其電壓V也會(huì)有些變

化，所以普通的高阻計(jì)是精度差、分辨率低。

本儀器是同時(shí)測(cè)出電阻兩端的電壓V和流過(guò)電阻的電流I，通過(guò)內(nèi)部的大規(guī)模集成電路完成電壓除以

電流的計(jì)算，然后把所得到的結(jié)果經(jīng)過(guò)A/D轉(zhuǎn)換后以數(shù)字顯示出電阻值，即便是電阻兩端的電壓V和流

過(guò)電阻的電流I是同時(shí)變化，其顯示的電阻值不象普通高阻計(jì)那樣因被測(cè)電壓V的變化或電流Ｉ的變化而

變，所以，即使測(cè)量電壓、被測(cè)量電阻、電源電壓等發(fā)生變化對(duì)其結(jié)果影響不大，其測(cè)量精度很高()，

從理論上講其誤差可以做到零，而實(shí)際誤差可以做到千分之幾或萬(wàn)分之幾。

典型應(yīng)用:

1、測(cè)量絕緣材料電阻(率)

2、測(cè)量防靜電材料的電阻及電阻率

3、測(cè)量計(jì)算機(jī)房用活動(dòng)地板的系統(tǒng)電阻值

4、測(cè)量防靜電鞋、導(dǎo)電鞋的電阻值

5、光電二極管暗電流測(cè)量

6、物理,光學(xué)和材料研究

標(biāo)準(zhǔn)配置：

1、測(cè)試儀器：1臺(tái)

2、.電源線：1條

3、測(cè)量線：3根（屏蔽線、測(cè)試接線、接地線）

4、使用說(shuō)明書(shū)：1份

備注：

本儀器配不同的測(cè)量電極（夾具）可以測(cè)量不同材料（固體、粉體或液體）的體積電阻率和表面電阻

率或電導(dǎo)率，*符合國(guó)家標(biāo)準(zhǔn)GB1410－2006固體電工絕緣材料絕緣電阻、體積電阻系數(shù)和表面電阻試驗(yàn)方法，ASTM D257 絕緣材料的直流電阻或電導(dǎo)試驗(yàn)方法　等標(biāo)準(zhǔn)要求。

Meet the standards:
Test method for volume resistivity and surface resistivity of solid insulating materials by 1410-2006 GB/T
Test method for DC resistance or conductance of insulating materials by D257-99 ASTM
Test method for resistance and resistivity of insulating materials at high temperature by 10581-2006 GB/T
1692-2008 GB/T "determination of electrical resistivity of vulcanized rubber"
2439-2001 GB/T - Determination of electrical conductivity and dissipative properties of vulcanized rubber or thermoplastic rubber
12703.4-2010 GB/T "the fourth part of the evaluation of the electrostatic properties of textiles: electrical resistivity"
10064-2006_ GB/T "test method for the determination of the insulation resistance of solid insulating materials"
First, an overview
The instrument can measure high resistance, and measuring current. The United States In company's large-scale integrated circuit, so that the instrument is small, light weight
High accuracy. Digital liquid crystal display direct current resistance and current. The measurement range is from 1 * 104 to 1 * 1018, which is the most wide and accurate measurement range in China.
Digital ultra high resistance measuring instrument with the highest degree. The current measurement range is 2 * 10-4 ~ 1 * 10-16A. The test voltage in the machine is
10V/50V/100V/250V/500V/1000V arbitrary adjustable. The instrument has the advantages of high accuracy, rapid display, good stability, convenient reading, and is suitable for the rubber and the rubber.
Plastic, plastic, film, and powder, liquid, and solid and paste shapes of various insulating materials volume and surface resistance values. In addition to the measurement of the instrument
Resistance, but also can directly measure the weak current.
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 size, light weight, high accuracy
Dual display of resistance and current
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 voltages or
When the scale is different from the use of the inconvenience of the trouble, so that the measurement of ultra high resistance, such as the use of a universal meter to measure the general resistance.
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 x 10-4A ~ 1 x 10-16A
3, display square type: digital liquid crystal display
4, built-in test voltage: 10V, 50V, 100V, 250, 500, 1000V
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, power supply form: 220V AC, 50HZ, power consumption of about 5W
9, instrument size: 285mm * 245mm * 120 mm
10, quality: about 2.5KG
Four, working principle
According to Ohm's law, the measured resistance Rx is equal to the applied voltage V divided by the current I. Traditional high resistance meter working principle is to measure the voltage V
The resistance value is obtained by measuring the current I flowing through the sampling resistor. From Ohm's law, it can be seen that 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.
The scale is very close and the resolution is very low. The whole scale is nonlinear. And because the measurement of different resistance, the voltage V will be a little change
So the common high resistance meter is of low precision and low resolution.
The instrument is to measure the voltage at both ends of the V and the current through the resistance of I, through the internal scale integrated circuit to complete the voltage divided by
The calculation of the current, and then the results obtained after the A/D conversion to figure out the value of the resistance, even the resistance of both ends of the voltage V and flow
The current I of the over resistance is changed at the same time, the resistance value which is displayed is not the same as that of the ordinary high resistance meter because of the change of the measured voltage V or the change of the current I.
Change, so, even if the measurement voltage, measured resistance, supply voltage and other changes have little impact on its results, the measurement accuracy is very high (patent),
In theory, the error can be zero, and the actual error can be done a few thousand or ten thousand.
Typical applications
1, measuring the resistance of insulating materials (rate)
2. Measure the resistance and resistivity of the antistatic material.
3. Measure the system resistance value of the computer room floor.
4, measuring the resistance value of anti-static shoes, conductive shoes
5, photoelectric diode dark current measurement
6, physics, optics and materials research
Standard configuration:
1, test equipment: 1 sets
2, power line: 1
3, measuring line: 3 (shielding wire, test wiring, grounding wire)
4, the instruction manual: 1 copies
remarks：
This instrument can measure the volume resistivity and surface resistance of different materials (solid, powder or liquid) with different measuring electrodes (fixture).
Rate or conductivity, in full compliance with the insulation resistance, volume resistivity and surface resistivity test of national standards GB14102006 of solid electrical insulating materials
Standard requirements for test methods, such as DC resistance or electrical conductivity test method of D257 ASTM insulation material.