ZST-121绝缘材料的体积表面电阻检测仪器
一、符合标准及适用范围：
I. in line with the standards and scope of application:
绝缘材料的体积表面电阻检测仪器*符合国家标准GB1410－2006固体电工绝缘材料绝缘电阻、体积电阻系数和表面电阻试验方法，ASM D257 绝缘材料的直流电阻或电导试验方法 等标准要求。本仪器配不同的测量电极（夹具）可以测量不同材料（固体、粉体或液体）的体积电阻率和表面电阻率或电导率。适用于橡胶、塑料、薄膜、及粉体、液体、及固体和膏体形状的各种绝缘材料体积和表面电阻值的测定。除能测电阻外，还能直接测量微弱电流。
In full compliance with national standards GB14102006 solid electrical insulation insulation resistance, volume resistivity and surface resistance test method of material ASM, D257 DC resistance or conductance of insulating materials test methods such as standard. This instrument can measure the volume resistivity and surface resistivity or conductivity of different materials (solid, powder or liquid) with different measuring electrodes. Suitable for the measurement of the volume and surface resistance of rubber, plastics, film, powder, liquid, and solid and paste shapes. In addition to the measurement of resistance of the instrument, but also can directly measure the weak current.
二、技术指标
Two, technical indicators
序号 项目 参数
Item parameters
1 电阻测量范围 1×104Ω ～1×1018Ω
1 resistance measurement range 1 * 104 ~ 1 * 1018
2 电流测量范围 2×10-4A～1×10-16A
2 current measurement range 2 * 10-4A ~ 1 * 10-16A
3 显 示 方 式 数字液晶显示
3 display mode digital liquid crystal display
4 内置测试电压 10V 、50V、100V、250V、500V、1000V
4 built in test voltage 10V, 50V, 100V, 250V, 500V, 1000V
5 基本准确度 1%
5 basic accuracy 1%
6 使用环境 温度：0℃～40℃，相对湿度<80%
6 using ambient temperature: 0 degrees Celsius to 40 degrees Celsius, relative humidity <80%
7 供电形式 AC 220V，50HZ，功耗约5W
7 power supply form 220V 50HZ, AC, power consumption is about 5W
8 仪器尺寸 285ｍｍ× 245ｍｍ× 120 mm
8 instrument size 285mm * 245mm * 120 mm
9 质量 约5KG
9 the quality is about 5KG
10 体积小、重量轻、准确度高 电阻、电流双显示，性能好稳定、读数方便
10 small size, light weight, high accuracy, high resistance, dual current display, good stability, easy to read
11 使测量超高电阻就如用万用表测量普通电阻样简便 免去老式高阻计在不同测试电压下或不同量程时要乘以系数等使用不便的麻烦
11 to make the measurement of ultra high resistance as the use of a universal meter measurement of the general resistance of the simple and easy to remove the old high resistance meter in different test voltage or different range to be multiplied by the use of the number of factors such as inconvenience.
三、工作原理
Three, working principle
根据欧姆定律，被测电阻Rx等于施加电压V除以通过的电流I。传统的高阻计的工作原理是测量电压V固定，通过测量流过取样电阻的电流I来得到电阻值。从欧姆定律可以看出，由于电流I是与电阻成反比，而不是成正比，所以电阻的显示值是非线性的，即电阻无穷大时，电流为零，即表头的零位处是∞，其附近的刻度非常密，分辨率很低。整个刻度是非线性的。又由于测量不同的电阻时，其电压V也会有些变化，所以普通的高阻计是精度差、分辨率低。
According to Ohm's law, the measured resistance Rx is equal to the applied voltage V divided by the current I. The traditional high resistance meter works is the measurement of the voltage V fixed, by measuring the flow through the sampling resistance of the current 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 since the measurement of different resistance, the voltage V will be some changes, so the average high resistance meter is poor accuracy, low resolution.
本台电阻率测试仪是同时测出电阻两端的电压V和流过电阻的电流I，通过内部的大规模集成电路完成电压除以电流的计算，然后把所得到的结果经过A/D转换后以数字显示出电阻值，即便是电阻两端的电压V和流过电阻的电流I是同时变化，其显示的电阻值不象普通高阻计那样因被测电压V的变化或电流Ｉ的变化而变，所以，即使测量电压、被测量电阻、电源电压等发生变化对其结果影响不大，其测量精度很高()，从理论上讲其误差可以做到零，而实际误差可以做到千分之几或万分之几。
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、典型应用
Four, typical applications
1、测量绝缘材料电阻(率)
1, measuring the resistance of insulating materials (rate)
2、测量防静电材料的电阻及电阻率
2. Measure the resistance and resistivity of the antistatic material.
3、测量计算机房用活动地板的系统电阻值
3. Measure the system resistance value of the computer room floor.
4、测量防静电鞋、导电鞋的电阻值
4, measuring the resistance value of anti-static shoes, conductive shoes
5、光电二极管暗电流测量
5, photoelectric diode dark current measurement
6、物理,光学和材料研究
6, physics, optics and materials research
五、标准配置：
Five, standard configuration:
序号 配置 单位 数量
Number of units
1 测试仪器 台 1
1 test instrument table 1
2 电极箱 台 1
2 electrode case table 1
3 电源线 条 1
3 power cord 1
4 测量线 条 3
4 measuring lines 3
5 使用说明书 份 1
5 using the instruction manual 1
