1716 views|1 replies

136

Posts

3

Resources
The OP
 

Regarding the issue of analog quantity acquisition, please ask the seniors [Copy link]

  This post was last edited by hanwenli123 on 2018-12-5 10:01 I did a 4-20ma acquisition. After calibration, when acquiring 4-20ma, I measured the voltage across the sampling resistor (tested with Uni-T's UT58A multimeter) and it was the same as the program test value. However, if there is no 4-20ma, there will be 0.5mV due to a calibration value. How should this value be processed? My idea is to remove this value when a voltage of about 0.5mV is acquired, and the other values collected will not be processed. I have not done anything in this area, so I don't know whether this treatment is reasonable or correct. Does the senior have a better and more reliable way to deal with this? Please give me some advice, thank you very much.
This post is from TI Technology Forum
 

136

Posts

3

Resources
2
 
Is there any senior here?
This post is from TI Technology Forum
 
 
 

Guess Your Favourite
Just looking around
Find a datasheet?

EEWorld Datasheet Technical Support

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号
快速回复 返回顶部 Return list