gongjigongyi.com

与米乐m6网页版登录入口代表实时聊天。 工作时间:上午 9:00 - 下午 5:00(太平洋标准时间)。

电话

致电我们

工作时间:上午9:00-下午5:00(太平洋标准时间)

下载

下载手册、产品技术资料、软件等:

下载类型
型号或关键字

反馈

How do I calculate the resistance accuracy of the Model 2450 on the 2 Ohm and greater than 200M ohm range?

问题:

How do I calculate the resistance accuracy of the Model 2450 on the 2 Ohm and greater than 200M ohm range?

答案:

Below are the numbers to use for calculating the accuracy of 2 ohm and 200M ohms ranges.
Since these particular ranges are only realized by using MANUAL OHMS, the below source values and measure values were used.
In manual ohms the user can choose what source function and value to use to make the resistance measurement.
On the 2 ohm range = 1A source with 1V measure.
On the 200M ohm range = 1uA source with 200V measure.

 
2 ohm range = 0.697%
200M ohm range = 0.0529%

Sample calculation on 2 ohm range for 1 ohm measurement
1 A source accuracy (source readback accuracy) = 0.03% + 500uA
This is 300uA + 500uA = 800uA
This is 0.0008A / 1A = 0.08%
Now to figure out the voltage measurement accuracy (use measure accuracy).
1V measurement accuracy = 0.012% + 300uV
This is 120uV + 300uV = 420uV.
This is 0.42mV / 1V = 0.042%
Now add up each accuracy
Current source = 0.08%
Voltage measure = 0.042%
Together we have 0.122% for the 2 ohm range using a 1A source and 1V measurement.


此常见问题适用于:

产品系列: 2400 图形化系列 SMU

产品:

常见问题 ID 470646

查看所有常见问题 »