Acoustic emission feedback control for control of boiling in a microwave oven

Patent · Tue Feb 26 00:00:00 EST 1991

OSTI ID:6075386

White, T L

This patent describes an acoustic emission based feedback system for controlling the boiling level of a liquid medium in a microwave oven. The acoustic emissions from the medium correlated with surface boiling is used to generate a feedback control signal proportional to the level of boiling of the medium. This signal is applied to a power controller to automatically and continuously vary the power applied to the oven to control the boiling at a selected level.

• Assignee: Dept. of Energy, Washington, DC (USA)
• Patent Number(s): US 4996403; A
• Application Number: PPN: US 7-474906
• OSTI ID: 6075386
• Resource Relation: Patent File Date: 5 Feb 1990
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
47 OTHER INSTRUMENTATION
CONTROL SYSTEMS
AUTOMATION
LIQUIDS
BOILING DETECTION
MICROWAVE OVENS
ACOUSTIC EMISSION TESTING
DESIGN
HEAT TRANSFER
PLANNING
POWER SYSTEMS
ACOUSTIC TESTING
APPLIANCES
DETECTION
ENERGY TRANSFER
FLUIDS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
OVENS
TESTING
240100* - Power Systems- (1990-)
440800 - Miscellaneous Instrumentation- (1990-)