Object processing state sensing using RF radiation

US11009468B2 · kind B2 · utility

Assignee

• GOJI LIMITED · BM

Inventors

• Yuval Ben Haim · Hod HaSharon, IL
• Sharon Hadad · Givatayim, IL
• Avner Libman · Holon, IL
• Igal Yaari · Palo Alto, US
• Maksim Berezin · Netanya, IL
• Elliad Silcoff · Nes Ziona, IL
• Amichai Ron · Jerusalem, IL

Key dates

• Filing date: Aug 31, 2018
• Grant date: May 18, 2021
• Expiry date: Feb 4, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B40/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Apparatus and method for applying RF energy to determine a processing state of an object placed in a cavity, during processing of the object. The method includes applying RF energy to the object during the processing via at least one radiating element, receiving RF feedback from in or around the cavity, said RF feedback being indicative of a dielectric response of the cavity and/or the object to electromagnetic (EM) fields excited in the cavity, mathematically manipulating the RF feedback to obtain computed RF feedback, determining one or more processing states of the object based on a correlation between the computed RF feedback and the one or more processing states of the object, and monitoring the computed RF feedback during the applying to monitor the one or more processing states of the object.