A spectrometry device includes a switch and a converter. The switch acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum and switches between outputting the first reception signal and outputting the second reception signal based on control by a controller. The converter converts the first reception signal or the second reception signal output from the switch into a digital signal.

Embodiments of the invention comprise apparatus and methods for detecting the presence of a substance in a test material using a plurality of wavelength-specific couplers (e.g. tilted fibre gratings) which provide a spatially distributed multi-node all-optical measurement system. Each node of the measurement system can comprise an optical module that is sensitive to the intensity of a limited band of wavelengths. The node is thus capable of detecting the presence of an absorption peak in a spectrum without having to obtain the full spectrum. By providing a plurality of optical modules that are sensitive to different wavelengths, the spectral signature of different substances may be monitored without having to measure full spectra. The measurement system may be particularly useful in a process control environment where it is desirable to take measurements of one or more substances in different locations.

A spectrometry device includes a first converter that processes a reception signal based on an irradiation light from a first emitter, a second converter that processes a reception signal based on an irradiation light from a second emitter, and a controller that controls the first emitter and the second emitter. The reception signal based on the irradiation light irradiated from the first emitter includes a first reception signal and a second reception signal that each include information that relates to an optical spectrum. When the controller stops the operation of the second emitter, the first converter converts the first reception signal into a first digital signal and the second converter converts the second reception signal into a second digital signal.

A spectrometry device includes a first converter that processes a reception signal based on an irradiation light from a first emitter, a second converter that processes a reception signal based on an irradiation light from a second emitter, and a controller that controls the first emitter and the second emitter. The reception signal based on the irradiation light irradiated from the first emitter includes a first reception signal and a second reception signal that each include information that relates to an optical spectrum. When the controller stops the operation of the second emitter, the first converter converts the first reception signal into a first digital signal and the second converter converts the second reception signal into a second digital signal.

A spectrometry device includes a switch and a converter. The switch acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum and switches between outputting the first reception signal and outputting the second reception signal based on control by a controller. The converter converts the first reception signal or the second reception signal output from the switch into a digital signal.

The disclosure discloses a cone penetrometer for detecting multi-pollutants and the corresponding method based on laser induced fluorescence (LIF) and time domain reflectometry (TDR). The cone penetrometer includes two main modules: the TDR module mainly composes of a PEEK insulating rod, two gold-coated stainless steel probes and a coaxial cable; the LIF module mainly composes of endoscope image sensor, alumina glass lens, an ultraviolet LED with a 280 nm-wavelength, and an ultraviolet LED with a 325 nm-wavelength. Detection is performed to obtain the soil dielectric constant for characterizing the volumetric water content, electrical conductivity for the content of ionic pollutants, fluorescence intensity at 325 nm-wavelength for the content of polycyclic aromatic hydrocarbons, fluorescence intensity at 280 nm-wavelength for the content of humic acid, and soil images for soil types. The disclosure is easy to carry, able to quickly identify multi-pollutants, and is suitable for in-situ deep detection in solid waste landfill sites.

There is provided a data processing apparatus including: a data determination portion that specifies, in each of first and second light intensity distribution data, an analysis range corresponding to a storage area for storing a detection target, the first and second light intensity distribution data being acquired on the basis of light emitted from first and light sources to a detection area; and a mode selection portion that selects an operation mode of the data determination portion. The mode selection portion selects one of a first mode in which the data determination portion specifies the analysis range in each of the first light intensity distribution data and the second light intensity distribution data, and a second mode in which the data determination portion specifies the analysis range in the second light intensity distribution data on the basis of information on the analysis range of the first light intensity distribution data.

Embodiments of the invention comprise apparatus and methods for detecting the presence of a substance in a test material using a plurality of wavelength-specific couplers (e.g. tilted fiber gratings) which provide a spatially distributed multi-node all-optical measurement system. Each node of the measurement system can comprise an optical module that is sensitive to the intensity of a limited band of wavelengths. The node is thus capable of detecting the presence of an absorption peak in a spectrum without having to obtain the full spectrum. By providing a plurality of optical modules that are sensitive to different wavelengths, the spectral signature of different substances may be monitored without having to measure full spectra. The measurement system may be particularly useful in a process control environment where it is desirable to take measurements of one or more substances in different locations.

The disclosure discloses a cone penetrometer for detecting multi-pollutants and the corresponding method based on laser induced fluorescence (LIF) and time domain reflectometry (TDR). The cone penetrometer includes two main modules: the TDR module mainly composes of a PEEK insulating rod, two gold-coated stainless steel probes and a coaxial cable; the LIF module mainly composes of endoscope image sensor, alumina glass lens, an ultraviolet LED with a 280 nm-wavelength, and an ultraviolet LED with a 325 nm-wavelength. Detection is performed to obtain the soil dielectric constant for characterizing the volumetric water content, electrical conductivity for the content of ionic pollutants, fluorescence intensity at 325 nm-wavelength for the content of polycyclic aromatic hydrocarbons, fluorescence intensity at 280 nm-wavelength for the content of humic acid, and soil images for soil types. The disclosure is easy to carry, able to quickly identify multi-pollutants, and is suitable for in-situ deep detection in solid waste landfill sites.