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voltage measurements Answered

I need to make several voltage measurements simultaneously.  I am looking to troubleshoot a intermittent problem with my truck. Has anyone any experience with this challenge ?  
I would like to be able to store these measurements to be analyzed at a later time.
Thanks,
Dave Sender.
 

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Toga_Dan

4 years ago

can you tell us what the intermittent problem is?

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Toga_Dan

4 years ago

vid cam plus several meters?

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Downunder35m

4 years ago

There are data loggers available that can be used for this but they are very costly.

Novus data loggers can be read by an free Android software for example.

Most cheap data loggers (around 100$) only have 2 channels, if you need more measurements you need a more expensive model with more channels.

Some tuning and high performance shops have good equippment capable for your task, it might be worth chasing some to inquire on options and prices to hire the equippment or to have them check your electrical system.

The only cheap way that pop's into my mind is to use a bunch of LED's for the measurement and detection.

With a transistor or two and a few extra parts each LED can be setup to only work within a very close supply voltage, let's say from 20-28V, when below it goes off.

If the tested circuit should be permanently on full Voltage you can add a flip flop type circuit that requires manual reset to detect contact problems that would otherwise only cause a short flicker on the LED - only when you reset manually the LED goes on again.

Painful process and takes some time to solder together but would only cost a few bucks...