The present disclosure provides a microwave cooking apparatus, a control method, and a storage medium. The microwave cooking apparatus comprises: a housing capable of enclosing a heating chamber therein; a solid microwave source disposed on the housing and used for emitting a first variable-power microwave; an antenna connected to the solid microwave source and used for feeding the first variable-power microwave into the heating chamber; and a controller connected to the solid microwave source and used for controlling the solid microwave source to operate and adjusting the first variable-power microwave. According to the technical solution of the present disclosure, on one hand, a better heating effect is able to be achieved for sealed foods, and on the other hand, a better unfreezing effect is also able to be achieved because the power of a solid microwave source is much lower than that of a magnetron so that during an unfreezing operation, foods to be defrosted will not be locally cooked resulting from local overheating caused when the foods to be defrosted locally absorbs too much heat due to excessive power.

An electromagnetic cooking device and method of controlling the same is provided herein. The cooking device includes a cavity in which a liquid is placed and a plurality of RF feeds configured to introduce electromagnetic radiation into the cavity for heating the liquid. A controller is provided and is configured to analyze forward and backward power at the plurality of RF feeds to calculate efficiency; determine and monitor a coefficient of variation of the efficiency; detect a heating state in the liquid based on changes in the coefficient of variation; and adjust a power level of the electromagnetic radiation in response to detection of the heating state.

An electromagnetic cooking device and method of controlling the same is provided herein. The cooking device includes a cavity in which a food load is placed and a plurality of RF feeds configured to introduce electromagnetic radiation into the cavity for heating the food load. A controller is provided and is configured to: (a) measure resonances in the cavity; (b) generate a resonance map resulting from the measured resonances; (c) conditionally repeat steps (a) and (b); (d) detect a melting state of the food load based on variations between the resonance maps; and (e) adjust a power level of the electromagnetic radiation in response to detection of the melting state.

An electromagnetic cooking device and method of controlling the same is provided herein. The cooking device has a cavity in which popcorn is placed and a plurality of RF feeds configured to introduce electromagnetic radiation into the cavity for popping the popcorn. A controller is provided and is configured to: analyze forward and backward power at the plurality of RF feeds to calculate efficiency; determine and monitor a coefficient of variation of the efficiency; detect a popping state of the popcorn based on changes in the coefficient of variation; and adjust a power level of the electromagnetic radiation in response to detection of the popping state.

A microwave heating device includes a waveguide, a metal plate, a magnetron, a heat generating plate, a thermal insulation member and an adjusting member. The waveguide has a waveguide space, in which a sidewall of the waveguide has an opening communicating the waveguide space. The metal plate covers the opening to seal the waveguide space. The magnetron is configured to generate microwaves, in which an output end of the magnetron protrudes into the waveguide space. The heat generating plate is disposed in the waveguide space and is contacted with the metal plate, in which the heat generating plate is configured to absorb microwaves. The thermal insulation member is partially covers the heat generating plate. The adjusting member is disposed in the waveguide space and is located under the heat generating plate.

A microwave treatment apparatus includes a treatment chamber, a microwave supply, and a resonator unit. The treatment chamber is surrounded by a plurality of walls, and accommodates a heating target. The microwave supply supplies a microwave to the treatment chamber. The resonator unit is provided on one wall of the plurality of walls, and the resonator unit has a resonance frequency in a frequency band of the microwave. In this embodiment, the impedance of the surface of the resonator unit can be changed by controlling the frequency of the microwave supplied to the treatment chamber. This makes it possible to control the standing wave distribution within the treatment chamber, that is, the microwave energy distribution within the treatment chamber. As a result, in the cases where a plurality of heating targets need to be heated simultaneously, desired dielectric heating is conducted for each of the heating targets.

A high temperature carbonization furnace has a cavity, at least two microwave units and a control unit. Each microwave unit is disposed along a processing path of the cavity. The control circuit receives signals of temperature sensors distributed on the processing path of the cavity. The control unit generates controls signals to control magnetrons of the different microwave units to be turned on/off, or to control powers of the magnetrons of the different microwave units, such that a location of the processing path, on which the microwave unit disposed, can attain an expected temperature condition. Further, the temperatures in the cavity can be adjusted precisely, such that the temperature distribution in the cavity is uniform, the uniformity for heating the processing object can be increased, and the temperature gradient of different temperature control regions can be controlled and adjusted, so as to achieve the advantage of adjusting and controlling the temperature condition of the processing path according to the requirement of the processing object.

A household appliance includes: a magnetron for generating microwaves during operation; a power supply unit; and a controller for specifying to the power supply unit a power level for the operation of the magnetron. The controller temporarily reduces, in a coexistence mode, the power level specified to the power supply unit for the operation of the magnetron in a manner that reduces or prevents disturbance of communication in a wireless network using beacon frames due to the microwaves generated by the magnetron.

A heating device for an exhaust catalyst includes a first antenna and a second antenna. The heating device executes a specific radiation control for controlling operation of an electromagnetic wave generator to set a radiation state of an electromagnetic wave from the first antenna to be a different state from a radiation state of an electromagnetic wave from the second antenna. In such a case, the heating device acquires an intensity of an electromagnetic wave, of electromagnetic waves incident on the first antenna, and acquires an intensity of an electromagnetic wave, of electromagnetic waves incident on the second antenna. The heating device acquires a first temperature-correlated value for the first part based on the first electromagnetic wave intensity, and acquires a second temperature-correlated value for the second part based on the second electromagnetic wave intensity.

System and method for thermally treating a flowable product includes an apparatus including a waveguide for providing electromagnetic energy, a conduit for receiving a flowable material, and an applicator for delivering electromagnetic energy from a generator to the waveguide. The waveguide includes first and second arms that each comprise an output that is isolated from the output of the other arm by a phase shift, such that any reflected electromagnetic energy exits the arm through the input port and does not flow into the opposing arm.