C-SHAPED CYLINDRICAL CORE FOR LINEAR VARIABLE DIFFERENTIAL TRANSFORMER (LVDT) PROBES

C-SHAPED CYLINDRICAL CORE FOR LINEAR VARIABLE DIFFERENTIAL TRANSFORMER (LVDT) PROBES

Apparatus and associated methods relate to a linear variable differential transformer (LVDT) probe including a plunger rod and a metal sheet formed into a cylinder with a C-shaped cross-section, configured to couple to the plunger rod. In an illustrative example, the coupling may be an interference...

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1. Verfasser: DANIELS, Aaron
Format: Patent
Sprache:eng ; fre ; ger
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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description Apparatus and associated methods relate to a linear variable differential transformer (LVDT) probe including a plunger rod and a metal sheet formed into a cylinder with a C-shaped cross-section, configured to couple to the plunger rod. In an illustrative example, the coupling may be an interference fit aided by spring retention forces of the metal sheet. The metal sheet may be stamped, formed and applied to the plunger rod without annealing. One or more longitudinal metal sheet edges may be rounded. The C-shaped metal sheet may be welded to the plunger rod at a distal and/or proximal end. In some examples, the longitudinal edges of the metal sheet may be welded together and/or to the plunger rod. The ratio of relative electromagnetic permeability of the metal sheet to the plunger rod may be greater than 10. Various implementations may advantageously reduce lot-to-lot variability and reduce the cost of producing LVDTs.
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language eng ; fre ; ger
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
title C-SHAPED CYLINDRICAL CORE FOR LINEAR VARIABLE DIFFERENTIAL TRANSFORMER (LVDT) PROBES
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