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品牌 | AIRTIMES/中航時代 |
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一 概述
本儀器既可測量超高電阻,又可測極微弱電流。采用了大規模集成電路以及的技 術,使儀器體積小、重量輕、準確度高。以數字液晶顯示電阻并同時直接顯示流過被測電阻的電流。電阻量程從1×104Ω ~1×1018Ω, 電流測量范圍 為2 ×10-4A ~1 ×10-16A。機內測試電壓為DC10V、50V、100V、250V、500V、1000V。
本儀器具有精度高、顯示迅速、穩定性好、讀數方便, 適用于防靜電產品 如防靜電鞋、防靜電塑料橡膠制品、計算機房防靜電活動地板等電阻值的檢驗以及絕緣材料和電子電器產品的絕緣電阻測量。本儀器除能測電阻外,還能直接測量電流如電子器件暗電流等。
二 主要特點
電阻測量范圍 1×104Ω ~1×1018 Ω;
電流測量范圍 2×10-4A ~1×10-16A;
體積小、重量輕、準確度高;
*的被測電阻、和流過電阻的電流雙顯示,使操作測量更加方便;
性能穩定、讀數方便;
既能測電阻又能測電流;
測試電壓有六種選擇DC10V、50V、100V、250V、500V、1000V;
使用操作簡便,在任何電阻量程和測試電壓下均直接讀顯示數字結果,免去要乘以一個系數的麻煩,使測量超高電阻就如用萬用表測量普通電阻樣簡便。
三 主要應用范圍
材料高阻測試測量如防靜電產品(防靜電鞋、防靜電塑料橡膠制品、計算機房防靜電活動地板等)電阻值的檢測;材料體電阻(率)和表面電阻(率)測量;電化學和材料測試,以及物理,光學和材料研究;微弱電流測量如光電效應和器件暗電流測量。
四 技術指標
1. 電阻測量范圍: 1×104Ω ~1×1018Ω,分為十個量程。
2. 電流測量范圍為2×10-4A ~1×10-16A
3. 全數字液晶屏顯示。
4. 準確度: 準確度優于下表
量程 有效顯示范圍 20~30℃ RH<80%
104 0.01~19.99 1%
105 0.01~19.99 1%
106 0.01~19.99 1%
107 0.01~19.99 1%
108 0.01~19.99 1%
109 0.01~19.99 1%
1010 0.01~19.99 5%+2字
1011 0.01~19.99 5%+2字
1012 0.01~19.99 5%+5字
1013 0.01~19.99 10%+5字
1014 0.01~19.99 10%+5字
1014以上 0.01~19.99 10-15%+5字
( 超出有效顯示范圍時誤差有可能增加)測試電流準確度與電阻相同測試電壓準確度為 10%
5. 使用環境: 溫度 -10℃~50℃ 相對濕度<90%。
6. 測試電壓: DC10V、50V、100V、250V、500V、1000V。±10%
7. 供電形式: AC 220V,50HZ,功耗約10W。
8. 儀器尺寸: 300mm× 280mm× 150 mm。
9. 質量: 約3.0KG。
五 工作原理
根據歐姆定律,被測電阻R等于施加電壓V除以通過的電流I。即
V
R= ---
I
傳統的儀器的工作原理是測量電壓V固定,通過測量流過被測物體的電流I以標定電阻的刻度來讀出電阻值。從上式可以看出,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,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。整個刻度是非線性的。又由于測量不同的電阻時,其電壓V也會有些變化,所以普通的高阻計的精度是很難提高的。
ZST-121體積、表面電阻率測定儀是同時測出電阻兩端的電壓V和流過電阻的電流I,通過內部的大規模集成電路完成電壓除以電流的計算,然后把所得到的結果經過A/D轉換后以數字顯示出電阻值,即便是電阻兩端的電壓V和流過電阻的電流I是同時變化,其顯示的電阻值不象普通高阻計那樣因被測電壓V的變化或電流I的變化而變,所以, 即使測量電壓、被測量電阻、電源電壓等發生變化對其結果影響不大,其測量精度很高。從理論上講其誤差可以做到零。而實際誤差可以做到千分之幾或萬分之幾。
An overview
本儀器既可測量超高電阻,又可測極微弱電流。采用了大規模集成電路以及的技 術,使儀器體積小、重量輕、準確度高。以數字液晶顯示電阻并同時直接顯示流過被測電阻的電流。電阻量程從1×104Ω ~1×1018Ω, 電流測量范圍 為2 ×10-4A ~1 ×10-16A。機內測試電壓為DC10V、50V、100V、250V、500V、1000V。
This instrument can measure high resistance, and can measure weak current. The large scale integrated circuit and new patent technology, the instrument has the advantages of small volume, light weight, high accuracy. In a digital liquid crystal display resistance and directly display the current flowing through the measured resistance. Resistance range from 1 × 104 to 1 × 1018 Ω, current measuring range is 2 × 10-4A ~ 1 × 10-16A. The built-in test voltage of DC10V, 50V, 100V, 250V, 500V, 1000V.
本儀器具有精度高、顯示迅速、穩定性好、讀數方便, 適用于防靜電產品 如防靜電鞋、防靜電塑料橡膠制品、計算機房防靜電活動地板等電阻值的檢驗以及絕緣材料和電子電器產品的絕緣電阻測量。本儀器除能測電阻外,還能直接測量電流如電子器件暗電流等。
The instrument has high precision, good stability, shows a rapid, convenient reading, suitable for insulation resistance measurement in anti-static products such as anti-static shoes, anti-static plastic and rubber products, computer room anti electrostatic floor activities such as inspection resistance and insulation materials and electronic products. This instrument can measure resistance, current electronic device can directly measure such as dark current.
二 主要特點
Two main features
電阻測量范圍 1×104Ω ~1×1018 Ω;
Resistance measurement range of 1 × 104 to 1 × 1018 Ω;
電流測量范圍 2×10-4A ~1×10-16A;
The current measurement range of 2 × 10-4A ~ 1 × 10-16A;
體積小、重量輕、準確度高;
Small volume, light weight, high accuracy;
*的被測電阻、和流過電阻的電流雙顯示,使操作測量更加方便;
Current, resistance, and resistance is measured through the unique dual display, make the operation more convenient;
性能穩定、讀數方便;
Stable performance, easy reading;
既能測電阻又能測電流;
Not only can measure resistance and the measured current;
測試電壓有六種選擇DC10V、50V、100V、250V、500V、1000V;
The test voltage is six DC10V, 50V, 100V, 250V, 500V, 1000V;
使用操作簡便,在任何電阻量程和測試電壓下均直接讀顯示數字結果,免去要乘以一個系數的麻煩,使測量超高電阻就如用萬用表測量普通電阻樣簡便。
The operation is convenient, in any resistance range and test voltage are directly read and display digital results, so it is multiplied by a coefficient of trouble, ultra high resistance as measured with a multimeter common resistance is measured.
三 主要應用范圍
The three main applications
材料高阻測試測量如防靜電產品(防靜電鞋、防靜電塑料橡膠制品、計算機房防靜電活動地板等)電阻值的檢測;材料體電阻(率)和表面電阻(率)測量;電化學和材料測試,以及物理,光學和材料研究;微弱電流測量如光電效應和器件暗電流測量。
The measurement of high resistance testing materials such as anti-static products (anti-static shoes, anti-static plastic and rubber products, computer room activities of anti-static flooring etc.) detection resistance value; material body resistance (rate) and surface resistance (rate) and electrochemical measurement; materials testing, and physical, and material of optical; weak current measurement as the photoelectric effect and dark current measurement device.
四 技術指標
The four technical indicators
1. 電阻測量范圍: 1×104Ω ~1×1018Ω,分為十個量程。
1 resistance measurement range: 1 × 104 ~ 1 × 1018 Ω, divided into ten ranges.
2. 電流測量范圍為2×10-4A ~1×10-16A
2 current measuring range is 2 × 10-4A ~ 1 × 10-16A
3. 全數字液晶屏顯示。
3 all digital LCD display.
4. 準確度: 準確度優于下表
4 accuracy: the accuracy of the table below
量程 有效顯示范圍 20~30℃ RH<80%
The range of effective display area of 20 ~ 30 ℃ RH<80%
104 0.01~19.99 1%
104 0.01~19.99 1%
105 0.01~19.99 1%
1050.01 19.991%
106 0.01~19.99 1%
1060.01 19.991%
107 0.01~19.99 1%
1070.01 19.991%
108 0.01~19.99 1%
1080.01 19.991%
109 0.01~19.99 1%
1090.01 19.991%
1010 0.01~19.99 5%+2字
10100.01 ~ 19.99 5%+2 words
1011 0.01~19.99 5%+2字
10110.01 ~ 19.99 5%+2 words
1012 0.01~19.99 5%+5字
10120.01 ~ 19.99 5%+5 words
1013 0.01~19.99 10%+5字
10130.01 ~ 19.99 10%+5 words
1014 0.01~19.99 10%+5字
10140.01 ~ 19.99 10%+5 words
1014以上 0.01~19.99 10-15%+5字
More than 1014 of 0.01 ~ 19.99 10-15%+5 words
( 超出有效顯示范圍時誤差有可能增加)測試電流準確度與電阻相同測試電壓準確度為 10%
(beyond the effective display range error may increase) test current accuracy and the same resistance test voltage accuracy is 10%
5. 使用環境: 溫度 -10℃~50℃ 相對濕度<90%。
5 the use of the environment: temperature of -10 ℃ ~ 50 ℃ relative humidity <90%.
6. 測試電壓: DC10V、50V、100V、250V、500V、1000V。±10%
6 the test voltage: DC10V, 50V, 100V, 250V, 500V, 1000V. ± 10%
7. 供電形式: AC 220V,50HZ,功耗約10W。
7 power supply forms: AC 220V, 50HZ, power consumption is about 10W.
8. 儀器尺寸: 300mm× 280mm× 150 mm。
The 8 instrument size: 300mm x 280mm x 150 mm.
9. 質量: 約3.0KG。
9 quality: about 3.0KG.
五 工作原理
The five principle
根據歐姆定律,被測電阻R等于施加電壓V除以通過的電流I。即
According to Ohm's law, the measured resistance R is equal to the applied voltage divided by current V by I. That is
V
V
R= ---
R= -
I
I
傳統的儀器的工作原理是測量電壓V固定,通過測量流過被測物體的電流I以標定電阻的刻度來讀出電阻值。從上式可以看出,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,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。整個刻度是非線性的。又由于測量不同的電阻時,其電壓V也會有些變化,所以普通的高阻計的精度是很難提高的。
The working principle of traditional instrument is to measure the voltage of V fixed, scale current by measuring the flow through the measured object I to calibrate the resistance to read the value of resistance. Can be seen from the above equation, the current I is inversely proportional to the resistance, not proportional, so is nonlinear resistive display value, namely the infinite resistance, current is zero, i.e. zero at the header is ∞, graduated in the vicinity of the very tight, very low resolution. The scale is nonlinear. Because the resistance measurement is different, its voltage V there will be some changes, so the high resistance of ordinary meter accuracy is difficult to improve.
ZST-121體積、表面電阻率測定儀是同時測出電阻兩端的電壓V和流過電阻的電流I,通過內部的大規模集成電路完成電壓除以電流的計算,然后把所得到的結果經過A/D轉換后以數字顯示出電阻值,即便是電阻兩端的電壓V和流過電阻的電流I是同時變化,其顯示的電阻值不象普通高阻計那樣因被測電壓V的變化或電流I的變化而變,所以, 即使測量電壓、被測量電阻、電源電壓等發生變化對其結果影響不大,其測量精度很高。從理論上講其誤差可以做到零。而實際誤差可以做到千分之幾或萬分之幾。
ZST-121 volume, surface resistivity tester is current and voltage V and flow resistance at the same time measuring resistor I, the large scale integrated circuit internal to complete the calculation of voltage divided by current, and then the obtained results after A/D conversion to digital display resistance value, even if is current and voltage of V and flow resistance at both ends of the I is changed at the same time, it shows the value of resistance do not like ordinary high resistance meter that due to changes in the measured voltage or current change of V I and change, so, even if the measurement of voltage, resistance, power supply voltage is measured changes had little effect on the results, the measuring accuracy is very high. Theoretically the error can do zero. But the actual error can be done a few thousandths or very few.
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