RMS vs MEAN? Help!

[jward015]

I have been using my Zmax for a while, and I know the eighth setting is suppose to be set to Root Mean Squared. I've heard that RMS is more accurate so I leave it on that setting. However I'd like to know exactly what is happening inside my device when I change this setting. Any help will be great, thanks guys!

 

[zoiDman]

I have been using my Zmax for a while, and I know the eighth setting is suppose to be set to Root Mean Squared. I've heard that RMS is more accurate so I leave it on that setting. However I'd like to know exactly what is happening inside my device when I change this setting. Any help will be great, thanks guys!

Here I a Watered Down explanation of Root Mean Squared.

BTW - How technical to you want an Explanation to be?

 

[jward015]

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[jward015]

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I've been vaping for a few years, I just haven't been very active in the forums for now. So I suppose as technical as you want

 

[jward015]

Here I a Watered Down explanation of Root Mean Squared.

BTW - How technical to you want an Explanation to be?

So I just posted two wrong threads lol. I've been vaping for a years now, but I'm new to the forums, obviously. Just explain it the best way possible, the more technical the better

 

[ca_girl2tx_girl]

I am still learning all the technicalities of the devices also. I found this video to be very helpful...
http:/..................../wordpress/2013/01/02/beginners-guide-to-e-cigs-and-e-cig-tech/
The video is long, but he does explain what RMS and Mean are

For some reason it is showing dots, but it is tasteyourjuice.com

 

[sailense]

Here's a basic breakdown.

The average or mean setting is the sum of those numbers divided by the number of items.

So, if you have 4 readings of 3, 6, 3, 6, the mean/avg is:
3+6+3+6 = 18
18/4 = 4.5

For RMS, we square the items then take the square root:
3^2 + 6^2 + 3^2 + 6^2 = 90
90/4 = 22.5
square root of 22.5 = 4.74

So, using the average we get a value of 4.5 and using rms we get a value of 4.74.

But why is rms more "accurate"?

Well, Power can also be defined as:

P = V^2/R

From this, you can see that power is proportional to the square of the voltage and not the voltage directly.

There's a better explanation here: SmartGauge Electronics - RMS volts as opposed to average volts - simple explanation

 

[jward015]

Here's a basic breakdown.

The average or mean setting is the sum of those numbers divided by the number of items.

So, if you have 4 readings of 3, 6, 3, 6, the mean/avg is:
3+6+3+6 = 18
18/4 = 4.5

For RMS, we square the items then take the square root:
3^2 + 6^2 + 3^2 + 6^2 = 90
90/4 = 22.5
square root of 22.5 = 4.74

So, using the average we get a value of 4.5 and using rms we get a value of 4.74.

But why is rms more "accurate"?

Well, Power can also be defined as:

P = V^2/R

From this, you can see that power is proportional to the square of the voltage and not the voltage directly.

There's a better explanation here: SmartGauge Electronics - RMS volts as opposed to average volts - simple explanation

So it's pretty much the same equation of turning voltage to power?

 

[sailense]

So it's pretty much the same equation of turning voltage to power?

Yeah, kind of. The main idea is when setting the voltage on a VV/VW device. The device doesn't actually put out the specific voltage. It pulses (PWM) 6v a certain number of times over an interval to hit that voltage.

If set for 4.5v like in the example, it fires a certain number of times so that the average is 4.5v. But to you, it seems hotter than 4.5v, and that's because the RMS of 4.74v is actually a better representation of all those pulses. So, setting a device to RMS will mean that it more accurately reflects the expected power output.

 

[Bill's Magic Vapor]

Here's a basic breakdown.

The average or mean setting is the sum of those numbers divided by the number of items.

So, if you have 4 readings of 3, 6, 3, 6, the mean/avg is:
3+6+3+6 = 18
18/4 = 4.5

For RMS, we square the items then take the square root:
3^2 + 6^2 + 3^2 + 6^2 = 90
90/4 = 22.5
square root of 22.5 = 4.74

So, using the average we get a value of 4.5 and using rms we get a value of 4.74.

But why is rms more "accurate"?

Well, Power can also be defined as:

P = V^2/R

From this, you can see that power is proportional to the square of the voltage and not the voltage directly.

There's a better explanation here: SmartGauge Electronics - RMS volts as opposed to average volts - simple explanation

Very nicely done.

 

[zoiDman]

So it's pretty much the same equation of turning voltage to power?

Not really the Same Equation.

Here are Two Tutorials that are not too Math Intensive.

What is RMS Voltage or Current

What is Average Voltage or Current