Differential transformer - QuickField simulation example
Differential transformer consists of 3 coils and a movable ferromagnetic core. Excitation is supplied to the central (primary) coil, and the output signal is measured on secondary coils.
How to find LVDT sensitivity?
Answer Typical applications Geometry
Given
Task
Solution
Results
Engineering question
Set up an axisymmetric QuickField AC Magnetics problem for an LVDT transformer and evaluate sensitivity from computed field results.
LVDT displacement sensors, inductive position sensors, linear motion transducers
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Simulation problem
Problem Type
Axisymmetric problem of AC magnetics.
Copper electrical conductivity g = 56 MS/m
Frequency f = 2 kHz
Excitation current I = 0.1 A
Calculate the output voltage as a function of core position.
Computations are automated using LabelMover tool.
Magnetic flux density distribution and the voltage vs. position dependency.
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