US 12,111,187 B2
Inductive position sensor with coil configuration
Harshad V. Tadas, Franklin, MA (US); and Thomas A. Simbron, Cumberland, RI (US)
Assigned to SENSATA TECHNOLOGIES, INC., Attleboro, MA (US)
Filed by Sensata Technologies, Inc., Attleboro, MA (US)
Filed on Sep. 7, 2022, as Appl. No. 17/939,185.
Claims priority of provisional application 63/245,249, filed on Sep. 17, 2021.
Prior Publication US 2023/0087139 A1, Mar. 23, 2023
Int. Cl. G01D 5/20 (2006.01)
CPC G01D 5/2073 (2013.01) [G01D 5/2086 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A sensor comprising:
an inductance-capacitance oscillating circuit comprising:
a first transmit coil of a first layer of a printed circuit board electrically arranged in parallel with a second transmit coil of a second layer of the printed circuit board;
an oscillator implemented via an integrated circuit, the oscillator in electronic communication with the first transmit coil and the second transmit coil;
one or more capacitors;
one or more resistors; and
at least one capacitor of the one or more capacitors and at least one resistor of the one or more resistors positioned between the oscillator and the first transmit coil, wherein the first transmit coil is electrically arranged in parallel with the second transmit coil,
wherein a value of the at least one capacitor of the one or more capacitors is in a range of 900 pF to 3600 pF in order to increase filtering of a harmonic frequency produced, at least in part, by the oscillator.