## How to measure voltage

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Hello sir

How to measure voltage

In micros you use an Analog to Digital Converter (ADC). It has 1 or more input pins to which you attach the voltage to be measured. While configurable you often set it to read between Gnd and Vcc. It will give an internal reading as a number in some range such as 0..255 or 0..1023 or 0..16383 or whatever where Gnd=0 and Vcc=top value.

So say Vcc is 5.0V and you apply 2.1V to the pin and the reading range is 0..1023 then the value you will get is 2.1V/5.0V * 1024 = 430 etc.

Hello sir

How to measure 132kv

RRITESH wrote:
How to measure 132kv

Allow to ask you a question:

- is this a general question ?

- What 132kV has to do with MCUs and specifically Atmel/Microchips MCUs ?

- Dont take it personal, but what is your background/ education...etc ?

so we can assume where to start as a good start point.

Thanks

How to measure 132kv

I'm not even going to answer that. From your other questions you clearly know virtually nothing about computers or electronics. You are probably the last person on earth who should be let anywhere near 132,000 Volts ! Sorry if that sound harsh but you have to know EXACTLY what you are doing to work with pretty much any voltage above about 80 Volts (though obviously current level is important too). No one who is not skilled should be working with even 110V/240V let alone hundreds of Kilovolts ! If you make one mistake at that kind of level you will be DEAD.

EDIT: if the question is simply theoretical then the answer is you "divide it down" to a level that can be measured, but I do worry you might actually be doing this for real.

Last Edited: Mon. Aug 19, 2019 - 09:34 AM

clawson wrote:

I'm not even going to answer that. From your other questions you clearly know virtually nothing about computers or electronics. You are probably the last person on earth who should be let anywhere near 132,000 Volts ! Sorry if that sound harsh but you have to know EXACTLY what you are doing to work with pretty much any voltage above about 80 Volts (though obviously current level is important too). No one who is not skilled should be working with even 110V/240V let alone hundreds of Kilovolts ! If you make one mistake at that kind of level you will be DEAD.

EXACTLY!.

Hello sir

How to divide voltage

RRITESH wrote:

Hello sir

How to measure 132kv

In the same way as with PP3 9V battery, you can use your tounge to test the voltage.

Hopefully that'll be then end of you and your trolling posts

Sounds like a comic sketch that might work if it were visual - like Borat asking if it is cheese.

How to measure voltage

I use my tongue if the voltage is known to be low...I'm somewhat calibrated from years of experience.

For 132 kV, I'd ask a friend to help.

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

avrcandies wrote:

How to measure voltage

I use my tongue if the voltage is known to be low...I'm somewhat calibrated from years of experience.

For 132 kV, I'd ask a friend to help.

You wicked, wicked man...

Ross McKenzie ValuSoft Melbourne Australia

For 132 kV, I'd ask a friend to help.

Help with making the measurement, or help with CPR after the measurement was taken?

JC

KerimF wrote:

And, if AC, frequency.   S.

DocJC wrote:
or help with CPR after the measurement was taken?

At that voltage level I'd think more like help cleaning up the charred pieces.

Letting the smoke out since 1978