Hakk effect gauss meter practice

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The discussion focuses on the application of Hall Effect sensors in magnetic particle testing, particularly in aeronautics. A key point raised is the relationship between the sensor's response and the angle between the magnetic field (B) and the sensor's plane, which remains unclear to the original poster. The Hall Effect sensor generates a small voltage in response to magnetic fields, typically when they are perpendicular to the sensor's surface. Participants mention different types of Hall Effect sensors, including raw and regulated versions, and provide links to datasheets for further reference. The conversation highlights the importance of understanding sensor orientation for accurate measurements in non-destructive testing.
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Hi everybody... I am studying the theory hall sensor for magnetic particle testing...It is a usually techinque non destructive for aeronautic application..In one paper i have read "the hall sensor respose is proportional to the sine of the angle between B and the plane of the hall sensor"..The question is: i do not understand what angle... If is possible to attachment a picture for explain it...
 
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The Hall Effect sensor produces a very small voltage (often less than a millivolt per Gauss) for a magnetic field that is usually perpendicular to the large area of the sensor. See datasheet for details. I guess this might be for a magnetic compass in aircraft.
There are "raw" 4-lead Hall Effect sensors (like a Wheatstone bridge), and "regulated" Hall Effect sensors. Here is the datasheet for the AD22151 sensor from Analog Devices:
http://www.analog.com/static/imported-files/data_sheets/AD22151.pdf
Here is a list from Allegromicro:
http://www.allegromicro.com/en/Products/Categories/Sensors/linear.asp
 
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tanks for your replay...Very intersting
Best regards
 
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