 | 北京中航時(shí)代儀器設(shè)備有限公司 |
會(huì)員.png)
13699145010
在線溝通：
石磊 （銷售經(jīng)理）
- 電話：
- 400-166-9267
- 手機(jī)：
- 13699145010
- 傳真：
- 86-010-80224846
- 聯(lián)系我時(shí)，
- 告知來自化工儀器網(wǎng)
- 個(gè)性化：
- www.zhonghangyq.com
- 商鋪網(wǎng)址：
- http://www.duoo135.com/st279932/
- 公司網(wǎng)站：
- http://www.zhonghang17.com
[供應(yīng)]ASTM D257絕緣材料的直流電阻或電導(dǎo)試驗(yàn)儀
ASTM D257絕緣材料的直流電阻或電導(dǎo)試驗(yàn)儀
符合標(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》
ASTM D257《絕緣材料的直流電阻或電導(dǎo)試驗(yàn)方法》
一、概述
既可測(cè)量高電阻，又可測(cè)微電流。采用了美國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。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)量儀。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。固體絕緣材料體積/表面電阻率測(cè)定儀除能測(cè)電阻外，還能直接測(cè)量微弱電流。
三、技術(shù)指標(biāo)
序號(hào) | 項(xiàng)目 | 參數(shù) |
1 | 電阻測(cè)量范圍 | 1×104Ω ～1×1018Ω |
2 | 電流測(cè)量范圍 | 2×10-4A～1×10-16A |
3 | 雙表頭顯示 | 3.1/2位LED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% |
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 | 10/50/100/250/500/1000V 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 |
四、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。
本儀器是同時(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。
典型應(yīng)用
1．測(cè)量防靜電鞋、導(dǎo)電鞋的電阻值
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)量絕緣材料電阻(率)
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：
序號(hào) | 配置 | 數(shù)量 | 單位 |
1 | 測(cè)試儀器 | 臺(tái) | 1 |
2 | 電源線 | 條 | 1 |
3 | 測(cè)量線 | 根 | 3 |
4 | 使用說明書 | 份 | 1 |
狀 態(tài)： 在線 |
|
ASTM D257絕緣材料的直流電阻或電導(dǎo)試驗(yàn)儀
GB1410 "solid electrical insulation materials insulation resistance, volume resistivity and surface resistance test method"
DC resistance or conductance of insulating materials test method "ASTM D257"
Not only can measure high resistance, and micrometer current. Using large scale integrated circuit American In company, so that the instrument has the advantages of small volume, light weight, high accuracy. High resistance meter and current resistancedirectly by double 3.1/2 digit display. Range from 1 * 104 to 1 * 1018 Omega Omega, is currently the most wide measuring range, digital with the highest accuracy of ultra highresistance measuring instrument. Current measuring range of 2 * 10-4 to 1 * 10-16A.The built-in test voltage of 10/50/100/250/500/1000V adjustable. The instrument hashigh precision, good stability, showing rapid, convenient reading, suitable for measuring insulation resistance in anti-static products such as anti-static shoes, anti-static plastic and rubber products, anti static floor computer room inspection such as value of resistance and insulation materials and electronic products. The volume of materialsurface resistivity tester / in addition to the measured resistance solid insulation, but also the direct measurement of weak current.
The serial number of the project parameter
1 resistance measurement range of 1 * 104 to 1 * 1018 Omega Omega
The 2 current measuring range of 2 * 10-4A to 1 * 10-16A
3 double headers 3.1/2 bit LED display
4 built-in test voltage of 10V, 50V, 100V, 250, 500, 1000V
5 basic accuracy 1%
6 the use of environmental temperature: 0 to 40 DEG C, relative humidity <80%
7 for in test voltage 10/50/100/250/500/1000V of arbitrary switching
8 power supply forms AC 220V, 50HZ, power consumption is about 5W
The 9 instrument size 285mm * 245mm * 120 mm
10 quality about 2.5KG
According to Ohm's law, the resistance being measured Rx is equal to the applied voltage divided by current V by I. The working principle of the high resistance meter is the traditional measuring voltage V fixed, by measuring the current flowing through the sampling resistor I to obtain the resistance value. From Ohm's law can be seen,because the current I is inversely proportional to the resistance, but not proportional, sois nonlinear resistive display value, i.e., infinite resistance, current is zero, i.e. zero at the header is infinite, scale near the very dense, with a low resolution. The scale is nonlinear. Because the resistance measurement of different voltage, the V will also besome changes, so the high resistance of ordinary gauge is poor accuracy, low resolution.
This instrument is the current flowing through the resistor V and a voltage across the resistor I measured at the same time, through the large-scale integrated circuit internalto complete the calculation of voltage divided by current, then put the results obtainedafter A/D conversion to digital display value of resistance, even current voltage V and the flow resistance at both ends of the I is changed at the same time, the resistance ofthe display value is not like an ordinary high resistance meter that due to changes in the voltage to be measured changes in V or I current and change, so, even if themeasurement of voltage, resistance, power supply voltage is measured change has little influence on the results, the measuring accuracy is very high (patent), theoretically the error can do zero, while the actual error can do a few thousandths or very few.
1 resistance measurement of anti-static shoes, conductive shoes value
2, measurement of anti electrostatic material resistance and resistivity
3, measurement of computer room with movable floor system resistance value
Insulation resistance measurement (rate), 4
5, photoelectric diode dark current measurement
6, physical, optical and material research
Standard configuration:
Configuring the serial number of the number of units
1 test equipment 1 Taiwan
2 power line 1
3 measuring line 3
4 Manual 1
Company introduction
The product catalog
The supply of information company name: Beijing China aerotime Instrument Equipment Co Ltd
Contact person: Shi Lei
Address: Beijing City, Fangshan District economic and Technological Development Zone No. 1 Gu Ba Lu
Postal Code: 102400
The main page: http://www.zhonghangyq。。ｃｏｍ
以上信息由企業(yè)自行提供，信息內(nèi)容的真實(shí)性、準(zhǔn)確性和合法性由相關(guān)企業(yè)負(fù)責(zé)，化工儀器網(wǎng)對(duì)此不承擔(dān)任何保證責(zé)任。 溫馨提示：為規(guī)避購買風(fēng)險(xiǎn)，建議您在購買產(chǎn)品前務(wù)必確認(rèn)供應(yīng)商資質(zhì)及產(chǎn)品質(zhì)量。