Abstract: A Fourier spectrophotometer includes: a light source; an interferometer configured to obtain first and second interferograms whose intensity distributions are inverted from each other from the light emitted from light source; a multiplexing optical system configured to multiplex the first and second interferograms to irradiate the sample with a resultant interferogram; a demultiplexing optical system configured to demultiplex the first and second interferograms contained in the light passing through the sample; a light receiver configured to output a first light reception signal obtained by receiving the demultiplexed first interferogram and a second light reception signal obtained by receiving the demultiplexed second interferogram; and a signal processing device configured to perform processing for obtaining a noise-removed spectrum of the wavelength component in the analysis wavelength band by using the first and second light reception signals.

Abstract: Stable operations can be performed even when a variation occurs between batches in perfusion culture. A cell culture system includes a culture tank for culturing cells, an information processing system that processes various pieces of information on the culture of the cells in the culture tank, and a controller that controls a culture step by the culture tank. The information processing system stores an operation condition in each of a plurality of steps constituting the culture step of the cells, stores a step transition condition for transition to a next step, and sets an operation condition for the next step when the step transition condition is satisfied during performing one step.

Abstract: A Fourier spectroscopic analyzer includes: a first light source that emits light including a wavelength component in a first wavelength band which is a wavelength band in which a spectrum of light passing through a sample is acquired and a wavelength component in a second wavelength band different from the first wavelength band; a second light source that emits light including the wavelength component in the second wavelength band; an interferometer that acquires an interferogram which is coherent light from the light emitted from the first light source; a first light coupling optical system that couples light emitted from the second light source to at least one of light emitted from the first light source and the interferogram acquired by the interferometer; a light receiver that outputs a first light-reception signal acquired by receiving light including the wavelength component in the first wavelength band out of the wavelength components included in the light passing through the sample and a second light-

Abstract: The present disclosure relates to a device for liquid processing in the process of cell culture, comprises: a settling tank which is configured to store a cell culture fluid from a bioreactor; a communicating tube that allows the bioreactor to communicate with the settling tank; a first excretory tube for discharging a cell concentrate, which is connected to the settling tank; a second excretory tube for discharging a supernatant, which is connected to the settling tank; a pump; and a control unit. In such device, after the cell culture fluid is separated into the supernatant and the cell concentrate by the gravitational settling in the settling tank, the control unit is configured to control the pump to (a) return the supernatant to the bioreactor through the communicating tube and harvest the cell concentrate through the first excretory tube and/or (b) harvest the supernatant through the second excretory tube and return the cell concentrate to the bioreactor through the communicating tube.

Abstract: A Fourier spectrophotometer includes: a light source; an interferometer configured to obtain first and second interferograms whose intensity distributions are inverted from each other from the light emitted from light source; a multiplexing optical system configured to multiplex the first and second interferograms to irradiate the sample with a resultant interferogram; a demultiplexing optical system configured to demultiplex the first and second interferograms contained in the light passing through the sample; a light receiver configured to output a first light reception signal obtained by receiving the demultiplexed first interferogram and a second light reception signal obtained by receiving the demultiplexed second interferogram; and a signal processing device configured to perform processing for obtaining a noise-removed spectrum of the wavelength component in the analysis wavelength band by using the first and second light reception signals.

Abstract: A Fourier spectroscopic analyzer includes: a first light source that emits light including a wavelength component in a first wavelength band which is a wavelength band in which a spectrum of light passing through a sample is acquired and a wavelength component in a second wavelength band different from the first wavelength band; a second light source that emits light including the wavelength component in the second wavelength band; an interferometer that acquires an interferogram which is coherent light from the light emitted from the first light source; a first light coupling optical system that couples light emitted from the second light source to at least one of light emitted from the first light source and the interferogram acquired by the interferometer; a light receiver that outputs a first light-reception signal acquired by receiving light including the wavelength component in the first wavelength band out of the wavelength components included in the light passing through the sample and a second light-

Abstract: A Fourier spectroscopic analyzer includes: a light receiver that receives a first wavelength component of a first wavelength band and a second wavelength component of a second wavelength band different from the first wavelength band, emits an interferogram to a sample, and outputs a first light reception signal acquired by receiving the first wavelength component and a second light reception signal acquired by receiving the second wavelength component; and a signal processing device that eliminates noise of the first wavelength component and acquires the spectrum by Fourier transform processing using the first light reception signal and the second light reception signal. The first wavelength band is a wavelength band of which a spectrum is acquired among wavelength components included in light that has passed through the sample. The interferogram is interference light and the sample is an analysis target.

Abstract: A Fourier spectroscopic analyzer includes: a light receiver that receives a first wavelength component of a first wavelength band and a second wavelength component of a second wavelength band different from the first wavelength band, emits an interferogram to a sample, and outputs a first light reception signal acquired by receiving the first wavelength component and a second light reception signal acquired by receiving the second wavelength component; and a signal processing device that eliminates noise of the first wavelength component and acquires the spectrum by Fourier transform processing using the first light reception signal and the second light reception signal. The first wavelength band is a wavelength band of which a spectrum is acquired among wavelength components included in light that has passed through the sample. The interferogram is interference light and the sample is an analysis target.

Abstract: An optical element includes a main body formed of a light transmissive material and including an arc-shaped optical path, and a gap formed on the arc-shaped optical path in the main body. The gap may have a notch shape. The main body may have a semicircular plate shape. The main body may have a hemispherical shape.

Abstract: A cell culture control system includes a controller configured to control parameters of a culture fluid which exists in a processor in accordance with a control value which is preliminarily set, a generator configured to generate time-series data by using a concentration value of the metabolic substances in the culture fluid, the concentration value of the metabolic substances being detected by a sensor, an extractor configured to extract a characteristic point of the time-series data generated by the generator, and a control value setter configured to change the control value in accordance with the characteristic point extracted by the extractor.

Abstract: An optical element includes a main body formed of a light transmissive material and including an arc-shaped optical path, and a gap formed on the arc-shaped optical path in the main body. The gap may have a notch shape. The main body may have a semicircular plate shape. The main body may have a hemispherical shape.

Abstract: A cell culture control system includes a controller configured to control parameters of a culture fluid which exists in a processor in accordance with a control value which is preliminarily set, a generator configured to generate time-series data by using a concentration value of the metabolic substances in the culture fluid, the concentration value of the metabolic substances being detected by a sensor, an extractor configured to extract a characteristic point of the time-series data generated by the generator, and a control value setter configured to change the control value in accordance with the characteristic point extracted by the extractor.