Analog Signal Scaling Types

mosama

Member
Join Date
May 2009
Location
Egypt
Posts
182
Hello,

Can someone illustrate the difference between different types of scaling of analog signal including Linear, Logarithmic and Square Root scaling?

Thanks in advance
 
It sounds like a homework assignment and I'm not inclined to spend the time to find the graphical images in Google images search and post them on a file site and then link them here, ya-da, ya-da, to do an assignment for someone.

So convince me that you're trying to solve a real world problem, and not doing homework.

What exactly is the issue about linear vs square root vs log scales?
 
My two cents.

Not all analog inputs are scaled linearly, as in 4 mA = 0%, 12 mA = 50% and 20 mA = 100%.

Sometimes you don't care about the first half of the measurement range but want a better resolution on a certain area.

I've also seen it with propane level transmitter, where the signal was exponential.
 

Similar Topics

Hi Guys, I'm Still looking for function block that is used in Mitsubishi GXWork3 for 4-20mA scaling. Is there no Mitsubishi friend here?
Replies
10
Views
5,362
Hi Guys, How is Analog Signal Scaled/Programmed in Mitsubishi GX Works3 and GX Works2? Please help. Regards
Replies
0
Views
1,402
Hi all, I'm studying how to configure my analog input module (1769-IF8/A)so that to scale my input signal from raw to a scale defined by me (I...
Replies
5
Views
13,297
Hello, I have a compact Logix plc and I have been task with configuring alarms into our SCADA when an Analog signal stops moving. The analog...
Replies
6
Views
222
I'm pretty new to PLC's, so forgive me if I use the wrong terminology and whatnot. We have an issue at work where we have a flow meter that is...
Replies
10
Views
270
Back
Top Bottom