（BEST-121）符合標準及適用范圍：
First, meet the standards and scope of application:
硅膠片體積電阻率測試儀*符合國家標準GB1410－2006固體電工絕緣材料絕緣電阻、體積電阻系數和表面電阻試驗方法，ASTM D257 絕緣材料的直流電阻或電導試驗方法 等標準要求。硅膠片體積電阻率測試儀配不同的測量電極（夾具）可以測量不同材料（固體、粉體或液體）的體積電阻率和表面電阻率或電導率。適用于橡膠、塑料、薄膜、及粉體、液體、及固體和膏體形狀的各種絕緣材料體積和表面電阻值的測定。本儀器除能測電阻外，還能直接測量微弱電流。
In full compliance with national standards GB14102006 solid electrical insulation insulation resistance, volume resistivity and surface resistance test method of material ASTM, D257 DC resistance or conductance of insulating materials test methods such as standard. The instrument can be used to measure the volume resistivity and surface resistivity or conductivity of different materials (solid, powder or liquid). Suitable for the determination of the volume and surface resistivity of insulating materials of rubber, plastics, films, powders, liquids, and solids and pastes. This instrument can measure the resistance, but also can directly measure the weak current.

技術指標：
Two, technical indicators
序號 項目    參數
Item parameter
1    電阻測量范圍    1×104Ω ～1×1018Ω
1 resistance measurement range 1 x 104 x ~ 1 * 1018
2    電流測量范圍    2×10-4A～1×10-16A
2 current measurement range 2 x 10-4A ~ 1 * 10-16A
3    顯 示 方 式    數字液晶顯示
3 display mode digital LCD display
4    內置測試電壓    10V 、50V、100V、250V、500V、1000V
4 built-in test voltage 10V, 50V, 100V, 250V, 500V, 1000V
5    基本準確度    1%
5 basic accuracy 1%
6    使用環境    溫度：0℃～40℃，相對濕度<80%
6 use the ambient temperature: 0 degrees C to 40 C, relative humidity <80%
7    供電形式    AC 220V，50HZ，功耗約5W
7 power supply form AC 220V, 50HZ, power consumption is about 5W
8    儀器尺寸    285ｍｍ× 245ｍｍ× 120 mm
8 instrument size 285mm * 245mm * 120 mm
9    質量    約5KG
9 mass of about 5KG
10    體積小、重量輕、準確度高    電阻、電流雙顯示，性能好穩定、讀數方便
10 small size, light weight, high accuracy, resistance, current double display, good performance and stability, easy reading
11    使測量超高電阻就如用萬用表測量普通電阻樣簡便    免去老式高阻計在不同測試電壓下或不同量程時要乘以系數等使用不便的麻煩
11 so that the measurement of the high resistance such as multimeter measurement of the general resistance of the sample is simple and easy to replace the old high resistance meter in different test voltages or different ranges to multiply the coefficient of the use of inconvenient trouble
三、工作原理
Three, working principle
根據歐姆定律，被測電阻Rx等于施加電壓V除以通過的電流I。傳統的高阻計的工作原理是測量電壓V固定，通過測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，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，所以普通的高阻計是精度差、分辨率低。涂層/涂料表面電阻/表面電阻率測試儀
According to Ohm's law, the measured resistance Rx is equal to the applied voltage V divided by the current I. The traditional working principle of high resistance meter is to measure the voltage V fixed, by measuring the current through the sampling resistor I to get the resistance value. From Ohm's law can be seen as the current I is inversely proportional to the resistance, but not proportional, so is nonlinear resistance display value is infinite resistance when the current is zero, which is zero at the header is infinite, the scale near the very dense, low resolution. The whole scale is nonlinear. And because the measurement of different resistance, the voltage V will also have some change, so the ordinary high resistance meter is the poor accuracy, low resolution.
本臺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。
This station is current resistivity tester V and resistor voltage across the resistor I measured at the same time, the large scale integrated circuit to complete the calculation of the internal voltage divided by the current, and then the results obtained after A/D conversion by the digital display of the resistance value, even if the current flowing through the resistor voltage V and two end resistance I is the change at the same time, the resistance value is not displayed as ordinary high resistance meter as a result of changes in the measured voltage or current change of V and I, so even if the measurement voltage, resistance, power supply voltage is measured and the change of the impact is not big, the measurement accuracy is very high (patent), from theory speaking of the error is zero, while the actual error can be done a few thousandths or very few.
四、典型應用：
Four, typical applications
1、測量絕緣材料電阻(率)
1, measuring insulation resistance (rate)
2、測量防靜電材料的電阻及電阻率
2. Measure the resistance and resistivity of antistatic material
3、測量計算機房用活動地板的系統電阻值
3. Measure the system resistance value of the movable floor of the computer room
4、測量防靜電鞋、導電鞋的電阻值
4. Measure the resistance value of anti-static shoes and conductive shoes
5、光電二極管暗電流測量
5, photodiode dark current measurement
6、物理,光學和材料研究
6, physics, optics and materials research
五、標準配置：
Five, the standard configuration:
序號    配置    單位    數量
Serial number
1    測試儀器    臺    1
1 test instrument 1
2    電極箱    臺    1
2 electrode box 1
3    電源線    條    1
3 power cord 1
4    測量線    條    3
4 measurement line 3
5    使用說明書    份    1
5 instruction manual 1