i want to measure the variation in the field strength based on the applied load. Also, i want to compare if it is advantageous over employing a displacement sensor. Especially for unit impulse loads !
This question is a bit like whether the beach or mountains make a better vacation destination--it depends what effect you want. Can you be more specific with your application? Magnetic field sensors are usually non-contact and can have a bandwidth greater than 10 kHz. Displacement sensors can have a bandwidth > 1 kHz. Dynamic range of field sensors is usually 0 to several Teslas, displacement sensors can have a range from sub micron to meters. One big advantage with a field sensor is in the following common setup: field results from a current, which creates a force (acceleration) which integrates to velocity then integrates to displacement. So magnetic field is more responsiveness to current changes than is displacement--which can also mean more subject to noise. Good luck!
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