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 calculate the output voltage as a function of core position?
Answer Typical applications Geometry
Given
Task
Solution
Results
Engineering question
Sweep the core position with LabelMover in an axisymmetric AC-magnetic model and record the differential output voltage at each position.
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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