Hall effect current sensor

[smuel]

Hi,

I'm looking at using a Honeywell LOHET 1 current sensor to measure currents up to 32A. As far as i can tell from the data available, it produces an output voltage that varies as the magnetic field varies within the gauss range...

I am no where near up to scratch with my physics, and I'm a bit confused as to what this actually means. In sensing AC current, will the output voltage be a proportional AC voltage, or will it be a DC voltage proportional to the RMS AC current being sensed?

I'm pretty sure it will be an AC voltage proportional to the AC current being sensed, but i thought i'd better double check with you guys before i go ahead and design my ADC input circuits..

Thanks a lot

Sam

 

[IanP]

The output voltage from these sensors will be a dc voltage of 6V (average value) with an AC component of +/-3V (max) around 6V ..
To make the output "AC" you will have to feed the output voltage through a capacitor ..

The output voltage from the device will increase linearly with the magnetic field until a +400 Gauss level is reached, at which point the nominal output voltage will be 9.0V. The output voltage at 0 Gauss is 6V ± 0.6V. At -400 Gauss, the nominal output voltage will be 3.0V.

Regards,
IanP