體積電阻率表面電阻率測(cè)定儀

Volume resistivity surface resistivity meter

數(shù)字超高阻、微電流測(cè)量?jī)x

Digital high megohm, micro electric current measuring instrument

一、概述

A, an overview of the

本儀器是既可測(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)模集成電路以及技術(shù),使儀器體積小、重量輕、準(zhǔn)確度高。以雙3.1/2 位數(shù)字直接顯示電阻的高阻計(jì)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10/50/100/250/500/1000V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， 適用于防靜電產(chǎn)品如防靜電鞋、防靜電塑料橡膠制品、計(jì)算機(jī)房防靜電活動(dòng)地板等電阻值的檢驗(yàn)以及絕緣材料和電子電器產(chǎn)品的絕緣電阻測(cè)量。本儀器除能測(cè)電阻外，還能直接測(cè)量微弱電流。

The instrument can measure high resistance, and micro electric current can be obtained. American In company of large scale integrated circuit is adopted, and patent technology, make the instrument is small in size, light weight, high accuracy. With double 3.1/2 digit indicates the current high resistance meter and resistance directly. Quantity limit from 1 x 104 Ω ~ 1 x 1018 Ω, is currently the domestic most wide measuring range, accuracy of the highest Numbers high resistance meter. Current measuring range is 2 x 1 x 10-10-4 ~ 16 a. Built-in test voltage for 10/50/100/250/100/250 v arbitrary adjustable. The instrument has high precision, display quickly, good stability, easy reading, applied to anti-static products such as anti-static shoes, anti-static plastic rubber products, such as anti-static raised floor computer room resistance test and insulation resistance measurements of insulation materials and electrical and electronic products. The instrument besides can measure resistance, but also can directly measure the weak current.

儀*符合并優(yōu)于國(guó)家標(biāo)準(zhǔn)GB1410《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》和美國(guó)標(biāo)準(zhǔn)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)的要求。

Instrument fully meet and exceed national standards GB1410 the insulation resistance of solid electrical insulating materials, volume resistivity and surface resistivity test method, and the American standard ASTM D257 \"dc resistance or conductance method for insulation materials, etc. Standard requirements.

二、主要特點(diǎn)

Second, the main characteristics

電阻測(cè)量范圍寬 0.01×104Ω ～1×1018 Ω

Resistance measurement of a wide range of 0.01 x 104 Ω ~ 1 x 1018 Ω

電流測(cè)量范圍為 2×10-4Ａ ～1×10-16Ａ

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

體積小、重量輕、準(zhǔn)確度高

Small volume, light weight, high accuracy

電阻、電流雙顯示

Resistance, current double display

性能好穩(wěn)定、讀數(shù)方便

Good performance stability, easy reading

所有測(cè)試電壓（10/50/100/250/500/1000V） 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用表測(cè)量普通電阻樣簡(jiǎn)便。

All test （10/50/100/250/100/250 v） voltage resistance test results, direct reading from the old high resistance meter or different under different voltage range, difficult to use when multiplied by the coefficient of trouble, make measure ultra-high resistance as ordinary resistance is measured with a multimeter sample is simple.

既能測(cè)超高電阻又能測(cè)微電流

Both can measure high resistance and can measure micro electric current

適用范圍廣:適用于防靜電產(chǎn)品如防靜電鞋、防靜電塑料橡膠制品、計(jì)算機(jī)房防靜電活動(dòng)地板等電阻值的檢驗(yàn)和電子電器產(chǎn)品的絕緣電阻測(cè)量

Wide applicable scope: is suitable for the anti-static products such as anti-static shoes, anti-static plastic rubber products, anti-static raised floor computer room resistance test and electrical and electronic products such as insulation resistance measurement

三、技術(shù)指標(biāo)

Third, technical indicators

1.電阻測(cè)量范圍： 0.01×104Ω ～1×1018Ω。

1. Resistance measuring range: 0.01 x 104 x 1018 Ω Ω ~ 1.

2.電流測(cè)量范圍為: 2×10-4A～1×10-16A

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

3. 雙表頭顯示: 3.1/2位LED顯示

3. Double header shows: 3.1/2 LED display

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

4. Built-in test voltage: 10 v and 50 v, 100 v, 250, 500, 100 v

5. 基本準(zhǔn)確度：1% （*注）

5. The basic accuracy: 1% （*）

6 使用環(huán)境: 溫度：0℃～40℃，相對(duì)濕度<80%

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

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

Test voltage within 7 machine: 10/50/100/250/100/250 v arbitrary switching

8.供電形式: AC 220V，50HZ，功耗約5W

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

四、工作原理

Four, principle of work

根據(jù)歐姆定律，被測(cè)電阻Rx等于施加電壓V除以通過的電流I。傳統(tǒng)的高阻計(jì)的工作原理是測(cè)量電壓V固定，通過測(cè)量流過取樣電阻的電流I來得到電阻值。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。

According to the ohm's law, the resistance to be measured the Rx is equal to the applied voltage V divided by the current through the I. Traditional high resistance meter work principle is to measure the voltage V is fixed, the current through the sample resistance by measuring the I to get resistance. From ohm's law can be seen that due to the current I is inversely proportional to the resistance, and is not proportional to, so the display value of resistance is nonlinear, the resistance is infinite, the current is zero, namely the header of the zero level is up, the scale is very near, the resolution is very low. The whole scale is nonlinear. Again due to the different resistance measurements, the voltage V is also will have some change, so ordinary high resistance meter is of poor precision and low resolution.

同時(shí)測(cè)出電阻兩端的電壓V和流過電阻的電流I，通過內(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分之幾。

And resistance is measured at each end of the current through the resistor voltage V and I, through the internal voltage divided by the current calculation of large scale integrated circuit is complete, then put the results after A/D conversion to digital shows resistance, even at the ends of the resistance current through the resistor voltage V and I are changing at the same time, the display of the resistance value is not like ordinary high resistance meter by measuring the change in the voltage V or current I change and change, so, even if the measurement of voltage, by measuring the resistance change, power supply voltage, etc. The results, the measuring accuracy is very high （patent）, in theory, the error can be zero, and the actual error can be done A few parts per thousand or very few.

典型應(yīng)用

Typical applications

1．測(cè)量防靜電鞋、導(dǎo)電鞋的電阻值

1. Measure the anti-static shoes, conductive resistance value

2、測(cè)量防靜電材料的電阻及電阻率

2, measuring resistance and resistivity of antistatic materials

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

3, computer room measured in raised floor system resistance value

4、測(cè)量絕緣材料電阻（率）

4, measuring insulation resistance （rates）

5、光電二極管暗電流測(cè)量

5, photoelectric diode dark current measurement

6、物理,光學(xué)和材料研究

6, physics, optics and materials research