Method and apparatus for detecting an energized e-field

Patent metadata

Field	Value
Publication number	US-10816586-B2
Application number	US-201816008349-A
Country	US
Kind code	B2
Filing date	Jun 14, 2018
Priority date	Oct 16, 2013
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

A method for detecting the presence of an energized e-field in a space, wherein the space includes at least one electrically conductive element disposed in the space and coupled with a controller, the method including receiving in the controller a signal from the at least one electrically conductive element, determining that an energized e-field occupies the space, and generating an indication, by the controller, indicative of the presence of the energized e-field in the space.

First claim

What is claimed is:

1. A method for detecting a presence of an energized e-field in a space for heating an article, wherein the space includes the article to be heated and at least one electrically conductive element configured to produce a voltage or a current in reaction to the energized e-field in the space and coupled with a controller, the method comprising:
producing in the at least one electrically conductive element the voltage or the current in reaction to the energized e-field apart from the article, receiving in the controller a signal from the at least one electrically conductive element indicative of a value of a parameter associated with the voltage or the current of the at least one electrically conductive element;
determining that the energized e-field occupies the space based on the signal; and
generating an indication, by the controller, indicative of the presence of the energized e-field in the space.

2. The method of claim 1 wherein the generated indication is a visual indication.

3. The method of claim 2 wherein the visual indication indicates a proportional presence of the energized e-field by at least one of illuminating brighter, altering a visible color, or altering a blinking pattern.

4. The method of claim 3 wherein a visual indication is related to an intensity of the voltage or the current produced by the at least one electrically conductive element.

5. The method of claim 1 wherein the indication is generated in the at least one electrically conductive element.

6. The method of claim 1 wherein the generated indication is an audible indication.

7. The method of claim 6 wherein the audible indication indicates a proportional presence of the energized e-field by at least one of increasing a volume of the audible indication or changing an audible message.

8. The method of claim 1 wherein the electrically conductive element comprises at least one light bulb.

9. The method of claim 8 wherein the light bulb further comprises at least one of an incandescent bulb or a fluorescent bulb.

10. The method of claim 1 wherein the at least one electrically conductive element comprises an array of electrically conductive elements.

11. The method of claim 10 wherein the signal is further indicative of which at least one electrically conductive element in the array of electrically conductive elements is in the energized e-field in the space.

12. The method of claim 1 wherein the parameter includes at least one of the voltage or the current.

13. The method of claim 1 , wherein the energized e-field is energized by a Radio Frequency (RF) generator.

14. The method of claim 13 , wherein the energized e-field is energized in a faraday cage defining an inside space and an outside space, and which is configured to prevent an energized e-field leakage from the inside space to the outside space.

15. The method of claim 14 wherein the at least one electrically conductive element is positioned in at least one of the inside space or the outside space.

16. The method of claim 15 wherein the signal indicates the energized e-field leakage from the inside space.

17. The method of claim 16 wherein the signal indicative of the energized e-field leakage is proportional to an amount of the energized e-field leakage.

18. The method of claim 1 , further comprising, upon determining that the energized e-field occupies the space, determining an indication of a current cycle of operation, and generating the indication indicative of the current cycle of operation.

19. The method of claim 1 further comprising, upon determining that the energized e-field occupies the space, determining an efficiency of a current cycle of operation, and altering the energizing of the energized e-field based on the determined efficiency.

Assignees

• Whirlpool Co

Inventors

• Herman Mark L
• Peterman Garry L
• Putnam Daniel M

Classifications

• G01R29/0857 Primary

  Dosimetry, i.e. measuring the time integral of radiation intensity; Level warning devices for personal safety use (nuclear radiation dosimetry G01T) · CPC title

• D06F58/266 Primary

  Microwave heating equipment · CPC title

• D06F34/08

  Control circuits or arrangements thereof · CPC title

• D06F2103/64

  Radiation, e.g. microwaves · CPC title

• D06F2105/62

  Stopping or disabling machine operation · CPC title