US 12,188,767 B2
Determining plastic or cellulose levels in composites
Victoria L. Wan, Philadelphia, PA (US); Jack G. Winterowd, Puyallup, WA (US); and Richard Schnarre, Metuchen, NJ (US)
Assigned to CONTINUUS MATERIALS INTELLECTUAL PROPERTY, LLC, The Woodlands, TX (US)
Filed by CONTINUUS MATERIALS INTELLECTUAL PROPERTY, LLC, The Woodlands, TX (US)
Filed on Mar. 22, 2024, as Appl. No. 18/614,264.
Application 18/614,264 is a continuation of application No. 17/139,556, filed on Dec. 31, 2020, granted, now 11,965,737.
Prior Publication US 2024/0240927 A1, Jul. 18, 2024
Int. Cl. G01B 7/06 (2006.01)
CPC G01B 7/085 (2013.01) 21 Claims
OG exemplary drawing
 
1. A system comprising:
a displacement-type capacitive sensor probe; and
at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the at least one processor to:
calibrate the sensor probe to a known dielectric constant of a first material;
send an instruction to the calibrated sensor probe to measure a capacitive response of a composite article comprising the first material and a second material;
receive the measured capacitive response from the calibrated sensor probe;
determine, based on the measured capacitive response, an equivalent thickness of the first material in the composite article, wherein determining the equivalent thickness comprises comparing the measured capacitive response to a known capacitive response of a sample of the first material of a known thickness; and
determine a percentage of the first material in the composite article based on the equivalent thickness of the first material and a thickness of the composite article.