Patent ID: 8758689

Claim:
A reaction analysis apparatus, comprising: an optical element which receives light emitted by a reaction region and transmits the received light; at least one spectrometer which receives the light transmitted by the optical element, converts the transmitted light into electric signals in accordance with intensities of various wavelength components and outputs the electric signals; a computer which is programmed for: obtaining an intensity value of a first wavelength component and an intensity value of a second wavelength component from the electric signals output by the spectrometer; calculating relative intensity of the first wavelength component relative to the second wavelength component from the intensity value of the first wavelength component and the intensity value of the second wavelength component; determining whether or not the calculated relative intensity is a value within a predetermined range; selecting a wavelength range from a first wavelength range and a second wavelength range in accordance with the determination of whether or not the calculated relative intensity is within the predetermined range; generating predetermined information on a characteristic of the reaction region based on a characteristic quantity of a peak within the wavelength range; determining whether or not an unexpected combustion is generated based on timing appearance or on a temporal change of intensity of a peak at a fifth wavelength and at a sixth wavelength within the selected wavelength range and generating information showing a result of the determination of whether or not an unexpected combustion is generated; and an output device which notifies a user that a state of the reaction region is a predetermined state in response to a determination that the calculated relative intensity is within the predetermined range.