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US 10,930,421 B2Granted
Method of tuning an inductance of an inductive sensor
AssigneeSimmonds Precision Products, Inc.
InventorSean Postlewaite
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Abstract
An inductive sensor includes a core body, a coil wound on the core body, a cavity having a fixed volume within the core body, and an epoxy mixture filling a controlled portion of the fixed volume. The controlled portion of the fixed volume filled with the epoxy mixture controls an inductance of the sensor.
Claims7
A method of tuning an inductance of an inductive sensor, the method comprising:
- determining a desired inductance of the sensor;
- achieving the desired inductance by:
- partially filling a core body cavity with a first mixture, the first mixture comprising an epoxy material and a magnetic material;
- and
- further filling the core body cavity with a second mixture different from the first mixture, the second mixture being situated proximate and distinct from the first mixture;
- wherein the cavity has a fixed volume;
- and
- wherein the first mixture fills a controlled portion of the fixed volume that is less than the fixed volume, the controlled portion controlling the inductance of the sensor.
5 more elements
Dependencies are inferred from the claim text.