Hall Effect Current Sensor Hardware

[brosuer]

Hi all. I'm an undergrad working with a dynamometer. I want to measure the current from our power supply to the dyno using a hall effect current sensor. Our power output is at a constant voltage of 32V and the current ranges from 0-20A. I'm planning on wiring the output from the sensor to an ADC and from the ADC to our cDAQ. Do I need to purchase some other hardware to measure current properly?

[GerdW]

Hi brosuer,

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@brosuer wrote:

I want to measure the current … using a hall effect current sensor. Our power output is at a constant voltage of 32V and the current ranges from 0-20A.

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Which kind of hall sensor?

Any specsheets/manuals you can provide a link to?

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@brosuer wrote:

I'm planning on wiring the output from the sensor to an ADC and from the ADC to our cDAQ.

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Which kind of "ADC"? (Again: specsheets/manuals?)

Why/how do you want to "wire the ADC" to your cDAQ?

Why don't you think about using a suitable AI module for your cDAQ?

When asking generic questions you will only get generic answer - and/or more questions!

Please be as specific as possible when asking hardware questions…

[RTSLVU]

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@brosuer wrote:

Hi all. I'm an undergrad working with a dynamometer. I want to measure the current from our power supply to the dyno using a hall effect current sensor. Our power output is at a constant voltage of 32V and the current ranges from 0-20A. I'm planning on wiring the output from the sensor to an ADC and from the ADC to our cDAQ. Do I need to purchase some other hardware to measure current properly?

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Well most hall effect sensors require a power source of some type. (non-powered inductive current sensors can only measure AC current)

So I guess it depends on if you are buying a "commercial" product or a bare sensor.

A commercial product will either come with a power supply or need a battery. 

If you are going to buy  a bare sensor then you are going to have to also build or buy the power supply and any other required circuitry.

Either way make sure the sensor has plenty of overhead for current spikes so its output stays within the input range of your DAQ.