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extremcurious
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i am not able to understand what IS exactly a hall probe and how it works. also how do we calibrate a hall probe? anyone please help!
extremcurious said:i could take a coil that has current passing through it and find it's field strength by substituting in the formula B=NI/L and then place the probe in the coil and find out the voltage. and then do it again for different values of I. that's what i thought but is it right??
A calibrated hall probe is a device used to measure magnetic field strength. It consists of a small semiconductor crystal with a known resistance placed in a magnetic field. The voltage measured across the crystal can be used to determine the strength of the magnetic field.
A calibrated hall probe works by utilizing the hall effect, which is the production of a voltage difference across an electrical conductor when it is placed in a magnetic field. The voltage measured by the probe is directly proportional to the strength of the magnetic field.
Calibration is important for a hall probe because it ensures the accuracy and reliability of the measurements. By calibrating the probe, the output voltage can be correlated to the actual magnetic field strength, allowing for precise and reliable measurements.
A hall probe is typically calibrated by subjecting it to known magnetic field strengths and recording the corresponding output voltage. This data is then used to create a calibration curve, which is used to convert the output voltage to magnetic field strength.
A calibrated hall probe has many applications in various fields such as physics, engineering, and geology. It can be used to measure magnetic fields in motors, generators, and other electrical devices, as well as in research and exploration of magnetic materials and geological formations.