Voltage Dropping to Zero

[rsr_17]

Hello,

I am measuring current via a hall effect sensor where the voltage output of the sensor is dependent on the current being measured. Whenever the VI is ran, the voltage drops to zero when the designated samples per channel is read. Does anyone know the root cause of this and how to fix it?

Regards,

rsr_17

[billko]

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@rsr_17 wrote:

Hello,

I am measuring current via a hall effect sensor where the voltage output of the sensor is dependent on the current being measured. Whenever the VI is ran, the voltage drops to zero when the designated samples per channel is read. Does anyone know the root cause of this and how to fix it?

Regards,

rsr_17

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Well, the root cause is that it is doing what you told it to do, which doesn't always align with what you want it to do.  I suppose the fix is to have what you tell it to do converge with what you want it to do.  😉  To go beyond that, I think we need to examine your code to see if we can figure out where it went wrong.

I am not sure of your description.  Do you mean that it reads correctly for an unspecified time and then drops to zero?

[RTSLVU]

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@rsr_17 wrote:

Hello,

I am measuring current via a hall effect sensor where the voltage output of the sensor is dependent on the current being measured. Whenever the VI is ran, the voltage drops to zero when the designated samples per channel is read. Does anyone know the root cause of this and how to fix it?

Regards,

rsr_17

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Impedance mismatch?

That's all I got without knowing in detail what your hardware is and seeing your code.

[rsr_17]

Hey Bill,

Very good point 😁.

See attachment for code and snip of chart (meant to attach initially)

[rsr_17]

Forgot code 😅

See below for snip of chart and the code