Catalyst heating device and heating device

A catalyst heating device comprising:

• a plurality of irradiation units each of which includes an antenna and is configured to radiate a microwave through the antenna to a catalyst device which has microwave absorbability and is configured to purify gas, to heat the catalyst device;
• a control unit having a function of allowing each of the plurality of irradiation units to make irradiation with the microwave under an irradiation condition including at least any of a frequency of the microwave, a phase of the microwave, and a position of the antenna, and having a function of changing the irradiation condition;
• a plurality of first microwave detection units which are individually associated with the plurality of irradiation units and each are configured to measure a value of transmission power of a microwave radiated from an associated irradiation unit of the plurality of irradiation units;
• and
• a plurality of second microwave detection units which are individually associated with the plurality of irradiation units and each are configured to, in response to reception of an unabsorbed microwave which is part of a microwave radiated from an associated irradiation unit of the plurality of irradiation units and is not absorbed by the catalyst device, measure a value of reception power of the unabsorbed microwave,
• the control unit being configured to change the irradiation conditions based on values of the transmission power individually measured by the plurality of first microwave detection units and values of the reception power individually measured by the plurality of second microwave detection units.

A heating device comprising:

• an irradiation unit which includes an antenna and is configured to radiate a microwave through the antenna to an object-to-be-heated serving as a heat target to heat the object-to-be-heated;
• a control unit having a function of allowing the irradiation unit to make irradiation with the microwave under an irradiation condition including at least any of a frequency of the microwave and a position of the antenna, and having a function of changing the irradiation condition;
• a first microwave detection unit configured to measure a value of transmission power of the microwave radiated from the irradiation unit;
• and
• a second microwave detection unit configured to, in response to reception of an unabsorbed microwave which is part of the microwave and is not absorbed by the object-to-be-heated, measure a value of reception power of the unabsorbed microwave,
• the control unit being configured to change the irradiation condition based on the value of the transmission power and the value of the reception power.

A heating device comprising:

• a plurality of irradiation units each of which includes an antenna and is configured to radiate a microwave through the antenna to an object-to-be-heated serving as a heat target to heat the object-to-be-heated;
• a control unit having a function of allowing each of the plurality of irradiation units to make irradiation with the microwave under an irradiation condition including at least any of a frequency of the microwave, a phase of the microwave, and a position of the antenna, and having a function of changing the irradiation condition;
• a plurality of first microwave detection units which are individually associated with the plurality of irradiation units and each are configured to measure a value of transmission power of a microwave radiated from an associated irradiation unit of the plurality of irradiation units;
• and
• a plurality of second microwave detection units which are individually associated with the plurality of irradiation units and each are configured to, in response to reception of an unabsorbed microwave which is part of a microwave radiated from an associated irradiation unit of the plurality of irradiation units and is not absorbed by the object-to-be-heated, measure a value of reception power of the unabsorbed microwave,
• the control unit being configured to change the irradiation conditions based on values of the transmission power individually measured by the plurality of first microwave detection units and values of the reception power individually measured by the plurality of second microwave detection units.