WO2021187536A1 - 状態特定装置、状態特定方法、および状態特定プログラム - Google Patents
状態特定装置、状態特定方法、および状態特定プログラム Download PDFInfo
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- WO2021187536A1 WO2021187536A1 PCT/JP2021/010886 JP2021010886W WO2021187536A1 WO 2021187536 A1 WO2021187536 A1 WO 2021187536A1 JP 2021010886 W JP2021010886 W JP 2021010886W WO 2021187536 A1 WO2021187536 A1 WO 2021187536A1
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- inspection object
- state
- data
- excitation light
- luminescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N21/6456—Spatial resolved fluorescence measurements; Imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6408—Fluorescence; Phosphorescence with measurement of decay time, time resolved fluorescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/127—Calibration; base line adjustment; drift compensation
Definitions
- the present invention relates to a state identification device, a state identification method, and a state identification program.
- the substances that make up the inspection object may be specified using light.
- absorption spectroscopy that irradiates an object to be inspected with light to measure the absorption spectrum to identify substances that make up the object to be inspected, or ionizes the object to be inspected with a laser to measure plasma light and measures the object to be inspected.
- Laser-induced breakdown spectroscopy is used to identify the constituents of.
- the object to be inspected may be irradiated with excitation light for a relatively long time (several tens of seconds), and physical property values such as the spectrum of delayed fluorescence generated and the fluorescence lifetime may be measured.
- laser light is irradiated by the first laser unit to measure scattered light, and a range in which a substance exists is extracted from the measurement results, and the first laser unit is used.
- a substance identification system for irradiating a laser beam with a different second laser unit and measuring the spectrum of the plasma light is described.
- the phosphor to be measured is placed on a stage and moved at a constant speed, the phosphor is irradiated with excitation light, and the fluorescence emitted by the excitation light is described.
- a fluorescence lifetime measuring device for detecting the elapsed time and the afterglow intensity and calculating the fluorescence lifetime using an image obtained by capturing the afterglow is described.
- the flowers are irradiated with excitation light to image the generated chlorophyll fluorescence and delayed fluorescence, and the ratio of the amount of delayed fluorescence to the amount of chlorophyll fluorescence and the flowers.
- a device for determining the shelf life of a flower is described, which determines the shelf life of the flower based on the correlation with the shelf life of the flower.
- the present invention provides a state identification device, a state identification method, and a state identification program capable of identifying the state of an inspection object using light.
- the state specifying device comprises an irradiation unit that irradiates an inspection object with excitation light under predetermined irradiation conditions, and the inspection object generated after a delay with respect to the irradiation of the excitation light.
- the inspection measured when the excitation light is irradiated under the irradiation conditions common to the luminescence data for each state of the luminescence data and the substance constituting the inspection object, and the measuring unit for measuring the luminescence data of the luminescence. It is provided with a specific unit for specifying the state of the inspection target object by collating it with the light emission data of the light emission from the object object.
- the excitation light is irradiated to the inspection object under predetermined irradiation conditions, and the state of the inspection object is specified based on the emission data of the light emission from the inspection object generated with a delay. be able to.
- the luminescence data of the luminescence from the inspection object is the delayed fluorescence and / or phosphorescence luminescence data of the inspection object generated in response to the irradiation of the excitation light.
- the excitation light is irradiated to the inspection target under predetermined irradiation conditions, and the state of the inspection target is specified based on the delayed fluorescence and / or phosphorescence data of the inspection target generated accordingly. can do.
- the measuring unit may include a high-speed camera that captures the light emission at a frame rate of 100 fps or more.
- the time-resolved image and the time-resolved data (time-dependent data) of the time-resolved image and its emission intensity are obtained only by applying a high-speed camera to the attenuation characteristic in which the emission intensity of the light emission immediately after the excitation light irradiation is sharply attenuated. ) Can be acquired at high speed and with high accuracy, and the luminescence data of the luminescence peculiar to the state of the inspection object can be measured with high accuracy.
- the specific unit reads out the reference light emission data of the inspection object stored in advance in the storage unit, and uses the read reference light emission data and the light emission data measured by the measurement unit to perform the inspection.
- the state of the object may be specified.
- the excitation light is irradiated to the inspection object under predetermined irradiation conditions, and the emission data of the emission from the inspection object generated in response to the excitation light and the reference emission of the inspection object stored in advance in the storage unit.
- the state of the inspection object can be identified by using the data.
- the state specifying device is an irradiation unit that irradiates an inspection object with excitation light under predetermined irradiation conditions, and light emission of light emitted from the inspection object generated in response to the irradiation of the excitation light.
- the first light emission data is measured as data
- the second light emission data is measured as the light emission data of the light emission from the inspection object generated in response to the irradiation of the excitation light after the external factor of the inspection object changes.
- a specific unit that specifies the state of the inspection object based on a change in an external factor of the inspection object based on the degree of change of the second light emission data with respect to the first light emission data. To be equipped.
- each of the inspection target before the treatment and the inspection target after the treatment is irradiated with excitation light under predetermined irradiation conditions, and the emission data of the inspection target before the treatment is inspected after the treatment.
- the state of the inspection object can be specified based on the amount of change in the light emission data of the object.
- the specific unit collates the light emission data for each degree of deterioration of the inspection object stored in the storage unit in advance with the light emission data measured by the measurement unit, and the inspection object is inspected.
- the degree of deterioration of the inspection object may be specified.
- the degree of deterioration of the inspection object is determined based on the emission data of the emission from the inspection object generated by irradiating the inspection object with excitation light under a predetermined irradiation condition and delaying the excitation light. Can be identified.
- the wavelength of the excitation light may be 10 nm or more.
- the excitation light having a wavelength of 10 nm or more it is only possible to manage the safety when irradiating the inspection object with the excitation light as compared with the case where the excitation light having a wavelength of less than 10 nm is used.
- the management of power supply control can be simplified, and the operating cost of the state-specific device can be kept low.
- the emission data may include delayed fluorescence and / or phosphorescence emission data generated after the irradiation of the excitation light is stopped.
- the state of the test object can be specified by measuring the delayed fluorescence and / or phosphorescence data peculiar to the state of the test object.
- the state specifying method includes an irradiation step of irradiating an inspection object with excitation light under predetermined irradiation conditions and light emission from the inspection object generated after a delay with respect to the irradiation of the excitation light.
- the inspection target measured when the excitation light is irradiated under the same irradiation conditions as the luminescence data for each state of the luminescence data and the substance constituting the inspection object. It includes a specific step of collating with the light emission data of the light emitted from the object to identify the state of the inspection object.
- the excitation light is irradiated to the inspection object under predetermined irradiation conditions, and the state of the inspection object is specified based on the emission data of the light emission from the inspection object generated with a delay. be able to.
- the reference emission data of the inspection object stored in advance in the storage unit is read out, and the read reference emission data and the measured emission data are used to read the reference emission data of the inspection object.
- the state may be specified.
- the excitation light is irradiated to the inspection object under predetermined irradiation conditions, and the emission data of the emission from the inspection object generated in response to the excitation light and the reference emission of the inspection object stored in advance in the storage unit.
- the state of the inspection object can be identified by using the data.
- the state identification program comprises a process of irradiating a computer with excitation light under predetermined irradiation conditions and the inspection object generated after being delayed with respect to the irradiation of the excitation light.
- the process of identifying the state of the inspection target object is executed by collating the light emission data of the light emission from the object object.
- the excitation light is irradiated to the inspection object under predetermined irradiation conditions, and the state of the inspection object is specified based on the emission data of the light emission from the inspection object generated with a delay. be able to.
- the state specifying device relates to an irradiation unit that irradiates an inspection object with excitation light under predetermined irradiation conditions, and a light emission of the inspection object that is delayed with respect to the irradiation of the excitation light.
- a measuring unit that measures luminescence data, the luminescence data, and luminescence data related to luminescence generated delayed when the excitation light is irradiated under the predetermined irradiation conditions for each state of a substance constituting the inspection object.
- a specific unit for specifying the state of the inspection object is provided based on the above.
- the state of the inspection object can be specified by using light.
- FIG. 1 is a diagram showing a functional block of the state specifying device 10 according to the first embodiment.
- the state specifying device 10 includes a setting unit 11, an irradiation unit 12, a measuring unit 13, a storage unit 14, and a specifying unit 15.
- the state specifying device 10 irradiates the inspection object 100 with excitation light under arbitrary irradiation conditions, and the state of the substance constituting the inspection object 100 based on the emission data of delayed fluorescence and / or phosphorescence generated accordingly.
- the state of a substance changes due to the addition of an external factor to the untreated (initial) state of the inspection object 100.
- the state of the substance may be changed once by adding an external factor to the untreated test object 100, but may be changed by further adding an external action to the test object 100. ..
- the inspection object 100 may be a substance composed of an arbitrary substance, may be a gas, a liquid, or a solid, and may be an inorganic substance or an organic substance, for example, paper, concrete, and the like. It may contain powder, resin, plants and the like.
- the state of the inspection object 100 is as an external factor, for example, a state in which water is added to the inspection object 100, a state in which the pH (acidity, base (alkali) degree is different, and an electromagnetic wave is applied to the inspection object 100. It also includes a state in which the inspection object 100 is heated, a state in which the inspection object 100 is exposed to air and various gases / gases, and a state in which mechanical stress is applied to the inspection object 100.
- the state specifying device 10 has been measured in advance for each state of the substance constituting the inspection object 100. Based on the luminescence data, the state of the inspection object 100 can be specified as non-contact, non-destructive, and non-invasive.
- the setting unit 11 sets the irradiation conditions of the excitation light.
- the excitation light irradiation conditions include at least one of the excitation light wavelength, the excitation light intensity, and the excitation light irradiation time.
- the wavelength of the excitation light may be 200 nm to 400 nm in the ultraviolet region, 200 nm or less in the far ultraviolet region, or 400 nm or more in the visible light region.
- the shorter the wavelength of the excitation light that is, the larger the energy intensity
- the wavelength may be set relatively short.
- the stronger the intensity of the excitation light the longer the emission lifetime of delayed fluorescence and / or phosphorescence tends to be. Therefore, when the emission lifetime is used to identify the state of a substance, the intensity of the excitation light may be set relatively strong. .. Further, the longer the irradiation time of the excitation light, the longer the emission lifetime of delayed fluorescence and / or phosphorescence tends to be. Therefore, when the emission lifetime is used to identify the state of a substance, the irradiation time of the excitation light is set relatively long. It's okay.
- the irradiation time of the excitation light is the emission lifetime of delayed fluorescence and / or phosphorescence. May be set to the shortest of the times when is close to the maximum value.
- the irradiation unit 12 irradiates the inspection object 100 with excitation light under the irradiation conditions set by the setting unit 11.
- the irradiation unit 12 may be composed of, for example, an ultraviolet laser or an ultraviolet LED (Light Emitting Diode).
- the wavelength of the excitation light emitted by the irradiation unit 12 may be 10 nm or more.
- the measuring unit 13 measures luminescence data related to the luminescence of the inspection object 100 generated after being delayed with respect to the irradiation of the excitation light. More specifically, the measuring unit 13 measures the delayed fluorescence and / or phosphorescence data of the inspection object 100 generated in response to the irradiation of the excitation light.
- the emission of the inspection object 100 delayed with respect to the irradiation of the excitation light may include not only delayed fluorescence and / or phosphorescence, but also other delayed emission, afterglow, or phosphorescence.
- delayed fluorescence is a phenomenon in which light emission is continued for a long time immediately after the irradiation of excitation light is stopped, and the life of light emission immediately after the irradiation of excitation light is stopped is about several nanoseconds. Including short phenomena.
- Phosphorescence is a phenomenon in which light emission is continued for a certain period of time immediately after the irradiation of excitation light is stopped, and includes a light emission having a life of about 10 to 3 to 10 seconds.
- the measuring unit 13 includes a camera 13a and an analysis unit 13b. The camera 13a captures the delayed fluorescence and / or phosphorescence of the inspection object 100 generated in response to the irradiation of the excitation light.
- the camera 13a may be a high-speed camera that captures delayed fluorescence and / or phosphorescence at a frame rate of 100 fps or higher.
- the frame rate of the high-speed camera may be 1000 fps or 10,000 fps or more.
- the time-resolved image and its emission intensity are time-dependent for the first time by applying a high-speed camera. Data can be acquired at high speed and with high accuracy, and delayed fluorescence and / or phosphorescence emission data peculiar to a substance can be measured with high accuracy.
- the delayed fluorescence and / or phosphorescence of the inspection object 100 When the delayed fluorescence and / or phosphorescence of the inspection object 100 is photographed by a high-speed camera, an image in which the light is multiplied by an image intensifier may be photographed.
- the binning function may treat adjacent pixels as one pixel to improve sensitivity and capture delayed fluorescent and / or phosphorescent images.
- the exposure time may be dynamically changed according to the light intensity of the inspection object 100. In this case, by setting the exposure time of the camera 13a to be long, delayed fluorescence and / or phosphorescence of the inspection object 100 having a lower emission intensity can be detected.
- an upper limit for example, 10 ms
- 10 ms may be set for the exposure time of the camera 13a.
- the captured image may be reduced or expanded to generate an image having an improved S / N ratio.
- the intensity of the excitation light may be increased according to the frame rate.
- the camera 13a it becomes possible to measure delayed fluorescence and / or phosphorescence on the two-dimensional or three-dimensional coordinates of the inspection object 100.
- the coordinate position can be specified with high resolution based on the pixel arrangement, and the state of the substance constituting the inspection object 100 can be specified according to each coordinate position. Therefore, it is possible to perform high-speed measurement as compared with the conventional fluorescence lifetime measurement.
- the time-dependent data of delayed fluorescence and phosphorescence intensity can be obtained with high time resolution by irradiating the inspection object 100 with excitation light for a short time (for example, 0.01 ms to 500 ms). It has the advantage that it can be measured in (for example, every 0.01 ms to 10 ms). Further, since the apparatus of the present invention captures delayed fluorescence and / or phosphorescence with a short exposure, a situation or motion blur in which the inspection object 100 moves between imaging frames occurs with a long exposure. It has the characteristic that it can be used in situations.
- the sensor of the camera 13a or the substance to be measured deteriorates over time, it is considered difficult to identify the state of the substance at the time of aging unless the cause of the aging deterioration is removed. Therefore, in order to treat the brightness value of the image obtained by the camera 13a as an absolute value (physical quantity), it is preferable to perform calibration in advance so that the brightness value of the camera 13a and the physical quantity (for example, illuminance) can be converted. For example, by combining a calibrated illuminometer, a luminance meter, a paper calibration board that has not deteriorated over time, etc., correction parameters that take into account the effects of aging deterioration are set, and the set correction parameters are used to set the camera 13a. Calibration may be performed after correcting the brightness value.
- the analysis unit 13b analyzes the delayed fluorescence and / or phosphorescence data of the inspection object 100 based on the image taken by the camera 13a.
- the emission data may include delayed fluorescence and / or phosphorescence emission data generated after the irradiation of excitation light is stopped.
- the emission data may include delayed fluorescence and / or phosphorescence emission data generated during irradiation with excitation light. Identify the state of a substance by using only the delayed fluorescence and / or phosphorescence emission data generated after the excitation light irradiation is stopped, without using the delayed fluorescence and / or phosphorescence emission data generated during excitation light irradiation. can do.
- the light emission data may include at least one of the time-dependent data of the light emission intensity and the time attenuation curve of the light emission intensity obtained from the brightness distribution of the image taken by the camera 13a. Examples of the time-dependent data of the emission intensity and the time attenuation curve of the emission intensity will be described in detail with reference to FIGS. 3 to 8. For delayed fluorescence and / or phosphorescence, by measuring at least one of the time-dependent data of emission intensity and the time decay curve of emission intensity, the emission data that characterizes the substance is measured to identify the state of the substance with high accuracy. can do.
- the measuring unit 13 may measure luminescence data including data on the fluorescence of the inspection object 100 generated during irradiation with the excitation light. That is, the measuring unit 13 may measure not only the delayed fluorescence and / or phosphorescence data of the inspection object 100, but also the data related to normal fluorescence. In that case, the emission data includes data on fluorescence and data on delayed fluorescence and / or phosphorescence. In this way, the state of a substance can be identified by measuring emission data including data on fluorescence as well as delayed fluorescence and / or phosphorescence.
- the storage unit 14 excites the delayed fluorescence and / or phosphorescence emission data 14a measured when the inspection object 100 is irradiated with excitation light under a certain irradiation condition and a known substance under one or more irradiation conditions.
- the delayed fluorescence and / or phosphorescence emission data 14b measured for each of the various states of the various substances is stored.
- the luminescence data 14a and the luminescence data 14b may be acquired from the new or untreated inspection object 100, or may be acquired from the inspection object 100 to which an external factor is applied.
- the luminescence data 14a is data acquired from the new or unprocessed inspection object 100
- the data acquired from the inspection object 100 to which an external factor is applied is used as the luminescence data 14b.
- examples include, for example, a food manufacturing process and a parts manufacturing process.
- the luminescence data 14a is data acquired from the inspection object 100 to which an external factor is applied
- the data acquired from the new or unprocessed inspection object 100 is used as the luminescence data 14b.
- examples include inspection of tunnels and bridges.
- the data acquired from the inspection object 100 to which the external factor is applied is used as the light emission data 14a, and is new or unprocessed.
- the data acquired from the inspection object 100 or the data acquired in the past from the inspection object 100 to which the external factor is applied is used as the light emission data 14b.
- examples include food manufacturing processes, parts manufacturing processes, liquid and powder mixing processes.
- the specific unit 15 includes emission data 14a measured when the excitation light is irradiated to the inspection object 100 under a certain irradiation condition, delayed fluorescence measured when the known substance is irradiated with the excitation light under the same irradiation condition, and delayed fluorescence. / Or the state of the substance constituting the inspection object 100 is specified based on the phosphorescent emission data 14b. More specifically, first, after designating the type of the inspection target 100, the luminescence data 14a measured when the inspection target 100 is irradiated with the excitation light under certain irradiation conditions is converted into the specified type of substance.
- the state of the substance constituting the inspection object 100 is specified by collating with the emission data 14b of delayed fluorescence and / or phosphorescence measured when the excitation light is irradiated for each state of the substance under the same irradiation conditions.
- the type is a label in which substances constituting the inspection object 100, such as paper (type 1), resin (type 2), and concrete (type 3), are roughly classified.
- the identification unit 15 specifies the irradiation conditions set by the setting unit 11, and specifies the emission data 14b of a known substance measured under the same or closest irradiation conditions as the irradiation conditions. Then, the luminescence data 14a of the inspection target 100 and the luminescence data 14b of the specified known substance are collated, and the state of the substance constituting the inspection target 100 is specified based on the similarity of the luminescence data.
- the peak width eg, half-value width
- tail width eg, outside the half-value width of the peak
- the normalized emission data is calculated by calculating the ratio to the peak width up to 0.1% of the peak intensity) and comparing it with the ratio of the peak width to the tail width of the spectrum of the known substance. Can be used to perform highly robust verification.
- the identification unit 15 may specify the state of the substance constituting the inspection object 100 by using, for example, the emission lifetime calculated from the time attenuation curve of the emission intensity. Further, the specifying unit 15 identifies the state of the substance constituting the inspection object 100 by comparing the half-life ⁇ / 2 of the luminescence of the inspection object 100 with the half-life of the luminescence of the known substance, for example. May be good.
- N is an integer of 1 or more.
- the specific unit 15 calculates the ratio of the emission intensity of delayed fluorescence or phosphorescence at different wavelengths with respect to the emission spectrum of delayed fluorescence or phosphorescence obtained by irradiating the inspection object 100 with excitation light of a single wavelength.
- the state of the substance constituting the inspection object 100 may be specified. That is, the specific unit 15 may specify the state of the substance constituting the inspection object 100 by using the relative value of the emission intensity of delayed fluorescence or phosphorescence at different wavelengths.
- the specific unit 15 is, for example, the ratio I ( ⁇ 1) / I ( ⁇ 2) of the emission intensity I ( ⁇ 1) at the first wavelength ⁇ 1 and the emission intensity I ( ⁇ 2) at the second wavelength ⁇ 2 measured for the inspection object 100.
- Examples of the method of obtaining the ratio of the emission intensity of delayed fluorescence or phosphorescence at different wavelengths include a method of using an RGB pixel value acquired by a color camera as a parameter obtained through a color filter, and a bandpass filter for a monochrome camera. Examples include a method of using the pixel value obtained by attaching the above, and a method of using a hyperspetle camera.
- the specific unit 15 calculates the difference in peak wavelength and the peak intensity ratio of the emission spectrum obtained by irradiating the excitation light of different wavelengths, and the difference in the peak wavelength and the peak intensity ratio of the emission spectrum of the known substance and the like.
- the state of the substance constituting the inspection object 100 may be specified in comparison with the above. Further, when specifying the state of a substance using delayed fluorescence and / or phosphorescence emission lifetime, the specific unit 15 specifies the intensity of excitation light whose emission lifetime is saturated for the inspection object 100, and emits emission lifetime for a known substance. By comparing with the intensity of excitation light that saturates, it is possible to perform collation with high robustness.
- the specific unit 15 inputs the luminescence data 14a measured when the excitation light is irradiated to the inspection object 100 under a certain irradiation condition into a learning model such as a neural network, and is similar to the luminescence data 14b in any state of the known substance. It may be specified by a learning model.
- the learning model may be generated by supervised learning using various light emission data as learning data, or may be generated by unsupervised learning such as clustering.
- the learning model, the learning data, the light emission data 14a, and the light emission data 14b of the known substance need not be stored in the storage unit of the state specifying device 10 as long as they can be accessed via the communication network.
- the excitation light is irradiated to the inspection target 100 under arbitrary irradiation conditions, and accordingly. Based on the delayed fluorescence and / or phosphorescence emission data generated in the above process and the delayed fluorescence and / or phosphorescence emission data measured under the same irradiation conditions for a substance of a predetermined type, the state of the substance can be identified. can.
- the inspection object 100 looks the same in visible light. Under such conditions, if the state of the substance constituting the inspection object 100 is identified by fluorescence, visible light, and infrared light, the state of the substance may not be discriminated. On the other hand, if the object 100 to be inspected has different characteristics depending on the state in the emission phenomenon of delayed fluorescence and / or phosphorescence, and the emission spectrum and emission lifetime of delayed fluorescence and / or phosphorescence are different, the substance is used using the information. It is possible to determine the state of. For example, when water is added to a substance, the emission spectrum and emission lifetime of delayed fluorescence and / or phosphorescence may be different from those before the addition of water to the substance.
- the emission spectrum and emission lifetime of delayed fluorescence and / or phosphorescence may be different from those before heating the substance.
- the emission spectrum and emission lifetime of delayed fluorescence and / or phosphorescence may be different from those before the deterioration of the properties of the substance.
- the deterioration of the substance may be considered by paying attention to these bond formations or their increasing phenomena.
- the deterioration of a substance means that the properties of the substance change discontinuously due to the continuous addition of external factors to the substance. Deterioration of a substance generally indicates that the properties of the substance change irreversibly, but may include a reversible change in the properties of the substance.
- the state identification device 10 by irradiating the inspection object 100 with excitation light, the state of the inspection object 100 can be specified in a non-contact, non-destructive, and non-invasive manner. .. Therefore, for example, when a product having the same characteristics is carried on a belt conveyor, the state specifying device 10 can detect a product that erroneously contains water as an abnormal product. Further, the state specifying device 10 is, for example, when heating a product having the same characteristics in an oven, if there is unevenness in the ease of heat transfer inside the oven, the product in which the heating unevenness occurs is regarded as an abnormal product. Can be detected as.
- the state of the inspection object 100 can be detected even in a situation where the inspection object 100 is moving. Therefore, for example, the state specifying device 10 can detect an abnormality in a tunnel, a bridge girder, or the like and perform an inspection when the vehicle equipped with the state specifying device 10 is traveling. Further, the state specifying device 10 has high-speed image processing property and robustness. Therefore, the state identification device 10 attaches a telephoto lens, a wide-angle lens, or the like to the camera 13a, and observes a luminescent image of a structure at a fixed point or moves and observes a distant dam, a bridge, a breakwater, a high-rise building, or the like. Therefore, it is also possible to estimate the durability (life) of the structure.
- FIG. 2 is a diagram showing a physical configuration of the state specifying device 10 according to the first embodiment.
- the state specifying device 10 includes a CPU (Central Processing Unit) 10a corresponding to a calculation unit, a RAM (Random Access Memory) 10b corresponding to a storage unit, a ROM (Read Only Memory) 10c corresponding to a storage unit, and a communication unit. It has a 10d, an input unit 10e, and a display unit 10f.
- Each of these configurations is configured so that data can be transmitted and received to and from each other via a bus.
- the state specifying device 10 is composed of one computer will be described, but the state specifying device 10 may be realized by combining a plurality of computers.
- the configuration shown in FIG. 2 is an example, and the state specifying device 10 may have configurations other than these, or may not have a part of these configurations.
- the CPU 10a is a control unit that controls execution of a program stored in the RAM 10b or ROM 10c, calculates data, and processes data.
- the CPU 10a is a calculation unit that executes a program (state specifying program) for specifying a substance based on light emission data.
- the CPU 10a receives various data from the input unit 10e and the communication unit 10d, displays the calculation result of the data on the display unit 10f, and stores it in the RAM 10b or the ROM 10c.
- the RAM 10b is a storage unit in which data can be rewritten, and may be composed of, for example, a semiconductor storage element.
- the RAM 10b may store a state-specific program executed by the CPU 10a, delayed fluorescence and / or phosphorescence emission data related to a plurality of substances, and the like. It should be noted that these are examples, and data other than these may be stored in the RAM 10b, or a part of these may not be stored.
- the ROM 10c is a storage unit capable of reading data, and may be composed of, for example, a semiconductor storage element.
- the ROM 10c may store, for example, a state specifying program or data that is not rewritten.
- the communication unit 10d is an interface for connecting the state identification device 10 to another device.
- the communication unit 10d may be connected to a communication network such as the Internet.
- the input unit 10e receives data input from the user, and may include, for example, a keyboard and a touch panel.
- the display unit 10f visually displays the calculation result by the CPU 10a, and may be configured by, for example, an LCD (Liquid Crystal Display).
- the display unit 10f may display the result of identifying the substance or the measured luminescence data.
- the state specifying program may be stored in a storage medium readable by a computer such as RAM 10b or ROM 10c and provided, or may be provided via a communication network connected by the communication unit 10d.
- the CPU 10a executes the state specifying program to realize various operations described with reference to FIG. It should be noted that these physical configurations are examples and do not necessarily have to be independent configurations.
- the state specifying device 10 may include an LSI (Large-Scale Integration) in which the CPU 10a and the RAM 10b or ROM 10c are integrated.
- FIG. 3 is a diagram showing light emission data L measured by the state specifying device 10 according to the first embodiment.
- the light emission data L irradiates plain paper, which is the inspection object 100, with a laser having a specific wavelength as excitation light for 500 ms, and images during and before and after irradiation at 250 fps by a camera 13a (high-speed camera).
- the pixel value of the pixel at the center coordinate where the excitation light was irradiated from the pixel of the imaging result is represented by 8 bits (0 to 255).
- the horizontal axis of the figure is the number of image frames, which can be converted into ms units by multiplying the numerical value on the horizontal axis by four.
- the vertical axis of the figure is the pixel value at the irradiation position of the laser, which is the excitation light, and corresponds to the luminance value.
- the pixel value reaches the maximum value (255) immediately after the irradiation of the excitation light is started, remains constant during the irradiation, and after the irradiation of the excitation light is finished. It can be read that the pixel values are gradually attenuated from the maximum value to the minimum value by emitting delayed fluorescence and / or phosphorescence.
- the first section A showing the change in the pixel value before and after the irradiation of the excitation light is started and the second section B showing the change in the pixel value before and after the irradiation of the excitation light is finished will be described in detail. do.
- FIG. 4 is a diagram showing a first section A of light emission data L measured by the state specifying device 10 according to the first embodiment. Also in the figure, the horizontal axis is the number of image frames, and the vertical axis is the pixel value at the laser irradiation position.
- the pixel value reaches the maximum value in about 1 frame (4 ms) after the irradiation of the excitation light is started, and then becomes constant.
- FIG. 5 is a diagram showing a second section B of the light emission data L measured by the state specifying device 10 according to the first embodiment. Also in the figure, the horizontal axis is the number of image frames, and the vertical axis is the pixel value at the laser irradiation position.
- the second section B of the light emission data L includes an exponential decay section B1 and a gradual decay section B2. Immediately after the irradiation of the excitation light is finished, the exponential decay section B1 starts, and the pixel value is exponentially attenuated. In the case of this example, the exponential decay section B1 continues for about 5 frames (20 ms) after the irradiation of the excitation light is finished, and the pixel value is attenuated by about 70% from the maximum value during that period.
- the gentle attenuation section B2 continues for about 24 frames (96 ms), during which the pixel value is attenuated to the minimum value.
- the image after irradiation with excitation light at 250 fps is captured by one camera 13a, but the measuring unit 13 emits delayed fluorescence and / or phosphorescence of the inspection object 100 at a frame rate lower than 100 fps.
- a camera and a high-speed camera may be included to capture delayed fluorescence and / or phosphorescence during a relatively fast time change period with a high speed camera and delayed fluorescence and / or phosphorescence with a camera during a relatively slow time change period. You may.
- the period in which the time change is relatively fast is, for example, the exponential decay section B1
- the period in which the time change is relatively slow is, for example, the decay section B2.
- high-speed camera to be taken to change the brightness of 10nsec order, i.e. may be one which captures images in about 10 8 fps.
- high-speed camera to be taken to change the brightness of 10nsec order
- a relatively low-speed camera to be taken to change the brightness of 10nsec order
- two cameras continuous images with sufficient time resolution can be used in both the relatively fast and slow time changes of delayed fluorescence and / or phosphorescence. Can be photographed.
- the irradiation time of the excitation light is set to 500 ms, but this value can be set arbitrarily.
- the inspection object 100 is plain paper, if the irradiation time of the excitation light is about 200 ms or more, the lifetime of delayed fluorescence and / or phosphorescence tends to be saturated.
- the irradiation time of the excitation light on the inspection object 100 may be set to be equal to or longer than the irradiation time at which the lifetime of delayed fluorescence and / or phosphorescence is saturated.
- FIG. 6 is a diagram showing an example of the time dependence of the light emission intensity when the temperature of a substance is raised and when the temperature is lowered.
- the substance is untreated, and the temperature of the substance is about the same as room temperature. Further, the temperature rise of the substance is started at time t2, and the temperature rise of the substance is stopped at time t4. Further, the temperature lowering of the substance is started at time t5, and the temperature lowering of the substance is stopped at time t7. Between the time t0 and the time t1, an output signal for turning on the excitation light is output. The image pickup signal of the camera 13a is continuously output between the time t1 and the time t2.
- the time dependence of the emission intensity is observed so that the emission intensity gradually decreases from the time t1 based on the emission image of the substance immediately after being irradiated with the excitation light.
- an output signal for turning on the excitation light is output.
- the imaging signal of the camera 13a is continuously output between the time t3 and the time t4.
- the time dependence of the emission intensity is observed so that the emission intensity gradually decreases from the time t3 based on the emission image of the substance immediately after being irradiated with the excitation light.
- an output signal for turning on the excitation light is output.
- the imaging signal of the camera 13a is continuously output between the time t6 and the time t7. Then, when the temperature of the substance is lowered, the time dependence of the emission intensity is observed so that the emission intensity gradually decreases from the time t6 based on the emission image of the substance immediately after being irradiated with the excitation light.
- the state specifying device 10 can identify the state of the substance in real time when the temperature of the substance is raised and when the temperature is lowered.
- the state specifying device 10 can be applied to water absorption, stress application, and the like.
- FIG. 7 is a diagram showing an example of light emission data measured by the state specifying device 10 according to the first embodiment.
- the luminescence data is time-dependent data on the emission intensity of delayed fluorescence and / or phosphorescence measured after irradiating a tissue, which is an example of the inspection object 100, with excitation light.
- a tissue which is an example of the inspection object 100, with excitation light.
- the identification unit 15 specifies the state of the substance constituting the inspection object 100, for example, by using the shape of the time-dependent data of the emission intensity.
- the emission intensity is lower than before the water is added to the papers.
- the emission intensity of delayed fluorescence and / or phosphorescence to the level before the addition of water to the papers remains. Dont return.
- the specific unit 15 constitutes the inspection object 100 by extracting the shape characteristics of the time-dependent data of the emission intensity and comparing it with the shape characteristics of the time-dependent data of the emission intensity of a known substance. Identify whether or not water has been added to the substance to be used.
- FIG. 8 is a diagram showing an example of light emission data measured by the state specifying device 10 according to the first embodiment.
- the emission data is time-dependent data on the emission intensity of delayed fluorescence and / or phosphorescence measured after irradiating paper, which is an example of the inspection object 100, with excitation light.
- each of the two types of paper (“Paper 1” and “Paper 2”) is not heated, and the two types of paper (“Paper 1” and “Paper 2”) are not heated.
- the identification unit 15 specifies the state of the substance constituting the inspection object 100, for example, by using the shape of the time-dependent data of the emission intensity.
- the emission intensity becomes stronger than before heating each of the two types of paper.
- the longer the heating time for each of the two types of paper the stronger the light emission intensity.
- the specific unit 15 constitutes the inspection object 100 by extracting the shape characteristics of the time-dependent data of the emission intensity and comparing them with the shape characteristics of the time-dependent data of the emission intensity of a known substance. Identify whether the substance has been heated.
- FIG. 9 is a diagram showing an example of light emission data measured by the state specifying device 10 according to the first embodiment.
- the emission data is time-dependent data on the emission intensity of delayed fluorescence and / or phosphorescence measured after irradiating paper, which is an example of the inspection object 100, with excitation light.
- the paper is not heated, the paper is heated for a certain period of time (for example, 60 seconds), and the paper is heated for a certain period of time and then for a certain period of time (for example, 30 minutes). Only time-dependent data on the emission intensity of delayed fluorescence and / or phosphorescence in each of the naturally dissipated states are shown.
- the identification unit 15 specifies the state of the substance constituting the inspection object 100, for example, by using the shape of the time-dependent data of the emission intensity.
- the emission intensity becomes stronger than before the papers are heated.
- the specific unit 15 constitutes the inspection object 100 by extracting the shape characteristics of the time-dependent data of the emission intensity and comparing them with the shape characteristics of the time-dependent data of the emission intensity of a known substance. Identify whether the substance has been heated and has just been heated.
- FIG. 10 is a flowchart of the state identification process executed by the state identification device 10 according to the first embodiment.
- the state specifying device 10 designates the type of the inspection object 100 (S10).
- the state specifying device 10 sets the irradiation conditions of the excitation light (S11).
- the excitation light is irradiated to the inspection object 100 under the set irradiation conditions (S12).
- the state specifying device 10 photographs the delayed fluorescence and / or phosphorescence of the inspection object 100 generated in response to the irradiation of the excitation light with the camera 13a (S13). Then, the state specifying device 10 analyzes the delayed fluorescence and / or phosphorescence emission data based on the captured image (S14).
- the emission data may include time-dependent data of emission intensity and a time attenuation curve of emission intensity.
- the state specifying device 10 collates the obtained emission data with the delayed fluorescence and / or phosphorescence emission data measured when the substance of a predetermined type is irradiated with excitation light under the same irradiation conditions ( S15). Then, the state specifying device 10 identifies the state of the substance constituting the inspection object 100 based on the similarity of the luminescence data (S16). As a result, the state identification process is completed.
- the specific unit 15 irradiates the inspection object 100 before the external factor changes and the inspection object 100 after the external factor changes with excitation light under predetermined irradiation conditions. Then, the state of the inspection object 100 is specified by comparing the emission data of the inspection object 100 generated in response to the irradiation of the excitation light before and after the processing.
- External factors include, for example, a predetermined treatment performed on the inspection object 100.
- the predetermined treatment includes, for example, addition of water to the inspection object 100 and heating.
- the identification unit 15 identifies the state of the inspection object 100 based on, for example, the amount of change in the light emission data of the inspection object 100 after the treatment with respect to the inspection object 100 before the treatment.
- the inspection target 100 before the treatment may be an untreated inspection target 100 or an inspection target 100 that has been subjected to a predetermined treatment in the past.
- the specific unit 15 is based on the premise that, for example, the type of the inspection object 100 and the tendency of the change in the light emission data before and after the processing of the inspection object 100 are acquired in advance, and the inspection object 15 before and after the processing.
- the state of the inspection object 100 is specified based on the amount of change in the light emission data of 100. For example, when the light emission data of the inspection target 100 tends to be strengthened by heating, the specific unit 15 determines the state of the inspection target 100 based on the amount of increase in the light emission data of the inspection target 100 before and after the processing. Identify.
- the identification unit 15 identifies that the inspection object 100 has deteriorated due to heating.
- the specific unit 15 may quantitatively evaluate the degree of deterioration of the inspection object 100 due to heating, for example, based on the amount of increase in the light emission data of the inspection object 100 before and after the treatment.
- FIG. 11 is a diagram showing an example of changes in the emission intensity of delayed fluorescence and / or phosphorescence for each substance immediately after heating at a heating temperature of 200 ° C. and the emission duration of delayed fluorescence and / or phosphorescence.
- a plurality of substances (“substance 1”, “substance 2”, “substance 3”, “substance 4”, “substance 5”, “substance 6”, “substance 7”) are heated at a heating temperature of 200 ° C.
- An example of the change in the emission intensity of delayed fluorescence and / or phosphorescence and the emission duration of delayed fluorescence and / or phosphorescence immediately after heating is shown. In this example, the fluorescence intensity of any substance does not change significantly before and after heating.
- the duration of delayed fluorescence and / or phosphorescence for "substance 1", “substance 2", “substance 3”, “substance 4", “substance 5", and “substance 7" Although changes can be seen before and after heating, there is no significant change in “substance 6" before and after heating.
- the duration of delayed fluorescence and / or phosphorescence is determined by heating each of “substance 1", “substance 2", “substance 3", “substance 4", “substance 5", and “substance 7". The amount of change before and after is different from each other.
- the identification unit 15 identifies the state of the inspection object 100 based on the amount of change in the delayed fluorescence and / or phosphorescence emission duration of the inspection object 100 before and after heating.
- the specific unit 15 specifies, for example, the type of the inspection object 100 from "substance 1" to "substance 7". Further, the specific unit 15 specifies the state of the inspection target 100 based on the amount of change in the delayed fluorescence and / or phosphorescence emission duration of the inspection target 100 before and after heating for the specified type of inspection target 100. do.
- the specific unit 15 is designated by, for example, the amount of change in the delayed fluorescence and / or phosphorescence emission duration of the inspection object 100 when the inspection object 100 is heated under predetermined heating conditions, and the same heating conditions.
- the state of the inspection object 100 is specified by comparing the amount of change in the emission duration of delayed fluorescence and / or phosphorescence when the substance of the type is heated.
- the specific unit 15 has, for example, the amount of change in the delayed fluorescence and / or phosphorescence emission duration of the inspection object 100 when the inspection object 100 is heated under predetermined heating conditions, and the threshold value corresponding to the specified type.
- the amount of change in the emission duration of delayed fluorescence and / or phosphorescence is equal to or greater than the threshold value, it is specified that the inspection object 100 has deteriorated due to heating.
- FIG. 12 is a flowchart of the state identification process executed by the state identification device 10 according to the second embodiment.
- the state specifying device 10 designates the type of the inspection target 100 (S20).
- the state specifying device 10 specifies the type of processing to be applied to the inspection object 100 (S21).
- the state specifying device 10 acquires the tendency of the change in the emission intensity of the inspection object 100 before and after the treatment (S22).
- the state specifying device 10 acquires, for example, whether the emission intensity of the inspection object 100 tends to increase or decrease before and after the treatment.
- the state specifying device 10 sets the irradiation conditions of the excitation light (S23).
- the state specifying device 10 irradiates the inspection object 100 before processing with excitation light under preset irradiation conditions (S24).
- the state specifying device 10 photographs the delayed fluorescence and / or phosphorescence of the inspection object 100 generated in response to the irradiation of the excitation light with the camera 13a (S25).
- the state specifying device 10 analyzes the delayed fluorescence and / or phosphorescence emission data (first emission data) based on the captured image.
- the first emission data may include a time-dependent data of emission intensity and a time attenuation curve of emission intensity.
- the state specifying device 10 irradiates the processed object 100 with excitation light under preset irradiation conditions (S26).
- the state specifying device 10 photographs the delayed fluorescence and / or phosphorescence of the inspection object 100 generated in response to the irradiation of the excitation light with the camera 13a (S27). Then, the state specifying device 10 analyzes the second emission data of delayed fluorescence and / or phosphorescence based on the captured image.
- the second emission data may include time-dependent data of emission intensity and a time attenuation curve of emission intensity.
- the state specifying device 10 identifies the state of the inspection object 100 based on the amount of change in the light emission intensity before and after the treatment (S28). As a result, the state identification process is completed.
- FIG. 13 shows that the storage unit 14 of the state specifying device 10 according to the third embodiment includes a first storage unit 14A and a second storage unit 14B.
- the first storage unit 14A has one or more irradiation conditions for the delayed fluorescence and / or phosphorescence emission data 14Aa measured when the inspection object 100 is irradiated with the excitation light under a certain irradiation condition and a known substance.
- the delayed fluorescence and / or phosphorescence emission data 14Ab measured for each of various states of various substances is stored.
- the second storage unit 14B transmits the absorption spectrum data 14Ba measured when the excitation light is irradiated to the known substance under one or more irradiation conditions, and the excitation light for the known substance under one or more irradiation conditions.
- the deterioration degree data 14Bb indicating the degree of deterioration of the known substance measured when irradiated is stored.
- the absorption spectrum data 14Ba and the deterioration degree data 14Bb are associated with each other as a known database for each combination of a known substance type and excitation light irradiation conditions. Examples of the absorption spectrum include an infrared absorption spectrum and a Raman spectrum.
- the specific unit 15 collates the absorption spectrum data 14Ba for each degree of deterioration of the substance of a predetermined type with the absorption spectrum data of the inspection object 100 measured by the measurement unit 13, and the inspection object 100 has deteriorated. Identify the degree. For example, the specific unit 15 calculates the absorption spectrum data of the inspection object 100 based on the light emission data 14Aa measured by the measurement unit 13, and the calculated absorption spectrum data and the known absorption spectrum data stored in advance in the second storage unit 14B. The absorption spectrum data 14Ba for each type of substance is collated. Then, the specifying unit 15 specifies the degree of deterioration of the inspection object 100 based on the deterioration degree data 14Bb associated with the collated absorption spectrum data 14Ba.
- FIG. 14 is a diagram showing an example of the time dependence of the emission intensity.
- the inspection object 100 is paper, and the correlation between the light emission time immediately after heating the paper and the pixel value is shown.
- the brightness value indicating the emission intensity of the paper in the image frame is evaluated as a pixel value
- the number of image frames immediately after heating the paper is evaluated as the emission time
- the heating temperature of the paper is RT (room temperature). )
- T1, T2, and T3 The heating temperature satisfies the relationship of RT ⁇ T1 ⁇ T2 ⁇ T3.
- FIG. 15 is a diagram showing an example of the size of the bond between the external factor and the functional group.
- the temperature is classified into four stages of RT, T1, T2, and T3. In this example, it is shown that the higher the heating temperature of the paper, the more the oxidative deterioration accompanying the heating of the paper progresses.
- FIG. 16 is a diagram showing an example of the relationship between the external factor and the degree of deterioration.
- the inspection object 100 is paper, and the correlation between the heating time of the paper and the degree of deterioration of the paper is shown.
- the higher the heating temperature of the paper the shorter the heating time until the degree of deterioration of the paper reaches the deterioration threshold.
- FIG. 17 is a diagram showing an example of the relationship between the durable life and the pixel value.
- the inspection object 100 is paper, and the correlation between the number of years elapsed since the paper was heated and the pixel value is shown.
- the luminance value indicating the light emission intensity of the paper is evaluated as the pixel value, and the heating temperature of the paper is classified into four stages of RT, T1, T2, and T3.
- the origin of the horizontal axis of the graph indicates the time point immediately after heating the paper (for example, after 20 ms), and the lower the pixel value after heating the paper, the more the paper deteriorates. It shows that it is in progress.
- the higher the heating temperature of the paper the faster the deterioration of the paper with the lapsed years after heating the paper, and the light emission intensity of the paper reaches a threshold value corresponding to the durability life. It shows that the number of years elapsed until it is reached is short.
- the state specifying device 10 calculates the deterioration prediction line of the paper from the transition of the pixel value within a predetermined period after heating the paper, and obtains the intersection of the deterioration prediction line and the threshold value corresponding to the durable life. It is possible to estimate the durable life of paper.
- FIG. 18 is a flowchart of the state identification process executed by the state identification device 10 according to the third embodiment.
- the state specifying device 10 designates the type of the inspection object 100 (S30).
- the state specifying device 10 sets the irradiation conditions of the excitation light (S31).
- the excitation light is irradiated to the inspection object 100 under the set irradiation conditions (S32).
- the state specifying device 10 photographs the delayed fluorescence and / or phosphorescence of the inspection object 100 generated in response to the irradiation of the excitation light with the camera 13a (S33). Then, the state specifying device 10 analyzes the delayed fluorescence and / or phosphorescence emission data based on the captured image (S34).
- the emission data may include time-dependent data of emission intensity and a time attenuation curve of emission intensity.
- the state specifying device 10 collates the obtained emission data with the delayed fluorescence and / or phosphorescence emission data measured when the substance of a predetermined type is irradiated with excitation light under the same irradiation conditions ( S35).
- the state specifying device 10 collates the presence / absence and size of the formation of the specific binding molecule based on the measurement data of the absorption spectrum of the substance of the type specified in advance or the data of the absorption spectrum read from the known database (S36). ..
- the state specifying device 10 specifies the degree of deterioration (deterioration degree) of the substance constituting the inspection object 100 based on the presence / absence and size of the production of the specific binding molecule collated in the previous step S36 (the degree of deterioration). S37). As a result, the state identification process is completed.
- 10 ... state identification device 10a ... CPU, 10b ... RAM, 10c ... ROM, 10d ... communication unit, 10e ... input unit, 10f ... display unit, 11 ... setting unit, 12 ... irradiation unit, 13 ... measurement unit, 13a ... Camera, 13b ... Analysis unit, 14 ... Storage unit, 14A ... First storage unit, 14B ... Second storage unit, 14a, 14Aa, 14Ab ... Emission data, 14b ... Emission data of known substance, 14Ba ... Absorption spectrum of known substance Data, 14Bb ... Deterioration degree (deterioration degree) data of known substance, 15 ... Specific part, 100 ... Inspection object.
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Abstract
Description
以下、本発明の一側面に係る第1実施形態を、図面に基づいて説明する。なお、各図において、同一の符号を付したものは、同一又は同様の構成を有する。
以下、本発明の一側面に係る第2実施形態を、図面に基づいて説明する。第2実施形態は、検査対象物の状態を特定する方法が第1実施形態と異なる。したがって、以下の説明においては、第1実施形態と相違する構成について主に説明し、第1実施形態と同一のまたは相当する構成については重複する説明を省略する。
以下、本発明の一側面に係る第3実施形態を、図面に基づいて説明する。第3実施形態は、検査対象物の状態を特定する方法が第1実施形態と異なる。したがって、以下の説明においては、第1実施形態と相違する構成について主に説明し、第1実施形態と同一のまたは相当する構成については重複する説明を省略する。
Claims (12)
- 所定の照射条件で、検査対象物に励起光を照射する照射部と、
前記励起光の照射に対して遅延して生じた前記検査対象物からの発光の発光データを測定する測定部と、
前記発光データと、前記検査対象物を構成する物質の状態ごとに前記発光データと共通する照射条件で前記励起光を照射した場合に測定された前記検査対象物からの発光の発光データとを照合して、前記検査対象物の状態を特定する特定部と、
を備える状態特定装置。 - 前記検査対象物からの発光の発光データは、前記励起光の照射に応じて生じた前記検査対象物の遅延蛍光及び/または燐光の発光データである、
請求項1に記載の状態特定装置。 - 前記測定部は、前記発光を100fps以上のフレームレートで撮影する高速カメラを含む、
請求項1または2に記載の状態特定装置。 - 前記特定部は、記憶部に予め格納された前記検査対象物の参照発光データを読み出し、前記読み出した参照発光データと前記測定部により測定された前記発光データとを用いて前記検査対象物の状態を特定する、
請求項1から3のいずれか1項に記載の状態特定装置。 - 所定の照射条件で、検査対象物に励起光を照射する照射部と、
前記励起光の照射に対して遅延して生じた前記検査対象物からの発光の発光データとして第1発光データを測定し、前記検査対象物の外的要因が変化した後に、前記励起光の照射に応じて生じた前記検査対象物からの発光の発光データとして第2発光データを測定する測定部と、
前記第1発光データに対する前記第2発光データの変化度に基づいて、前記検査対象物の外的要因が変化したことに基づく前記検査対象物の状態を特定する特定部と、
を備える状態特定装置。 - 前記特定部は、記憶部に予め格納された前記検査対象物の劣化度合いごとの発光データと、前記測定部により測定された前記発光データとを照合して、前記検査対象物の状態として、前記検査対象物が劣化した度合いを特定する、
請求項1から5のいずれか1項に記載の状態特定装置。 - 前記励起光の波長は、10nm以上である、
請求項1から6のいずれか1項に記載の状態特定装置。 - 前記発光データは、前記励起光の照射を止めた後に生じる前記検査対象物からの発光の発光データを含む、
請求項1から7のいずれか1項に記載の状態特定装置。 - 所定の照射条件で検査対象物に励起光を照射する照射工程と、
前記励起光の照射に対して遅延して生じた前記検査対象物からの発光の発光データを測定する測定工程と、
前記発光データと、前記検査対象物を構成する物質の状態ごとに前記発光データと共通の照射条件で前記励起光を照射した場合に測定された前記検査対象物からの発光の発光データとを照合して、前記検査対象物の状態を特定する特定工程と、
を含む状態特定方法。 - 前記特定工程においては、記憶部に予め格納された前記検査対象物の参照発光データを読み出し、前記読み出した参照発光データと前記測定された発光データとを用いて前記検査対象物の状態を特定する、
請求項9に記載の状態特定方法。 - コンピュータに、
所定の照射条件で検査対象物に励起光を照射する処理と、
前記励起光の照射に対して遅延して生じた前記検査対象物からの発光の発光データを測定する処理と、
前記発光データと、前記検査対象物を構成する物質の状態ごとに前記発光データと共通の照射条件で前記励起光を照射した場合に測定された前記検査対象物からの発光の発光データとを照合して、前記検査対象物の状態を特定する処理と、
を実行させる状態特定プログラム。 - 所定の照射条件で検査対象物に励起光を照射する照射部と、
前記励起光の照射に対して遅延して生じた前記検査対象物の発光に関する発光データを測定する測定部と、
前記発光データと、前記検査対象物を構成する物質の状態ごとに前記所定の照射条件で前記励起光を照射した場合に遅延して生じた発光に関する発光データとに基づいて、前記検査対象物の状態を特定する特定部と、
を備える状態特定装置。
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| US (1) | US12313547B2 (ja) |
| JP (1) | JP7345939B2 (ja) |
| CN (1) | CN115298537B (ja) |
| WO (1) | WO2021187536A1 (ja) |
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| CN115298537B (zh) * | 2020-03-17 | 2026-03-17 | 国立大学法人东京大学 | 状态确定装置、状态确定方法以及程序产品 |
| EP4549932A1 (en) * | 2023-11-03 | 2025-05-07 | Technische Hochschule Rosenheim, in Vertretung des Freistaates Bayern | Water content determination |
| KR102930428B1 (ko) * | 2025-02-20 | 2026-02-23 | 유니버시티 오브 사이언스 앤드 테크놀로지 베이징 | 종이의 열화인자 판별 장치 및 방법 |
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| JP2002039943A (ja) * | 2000-07-27 | 2002-02-06 | Japan Science & Technology Corp | 多光子励起蛍光寿命画像化システム |
| WO2005062027A1 (ja) * | 2003-12-19 | 2005-07-07 | Hamamatsu Photonics K.K. | 有害物質の評価方法、及び有害物質の評価用キット |
| JP2006194770A (ja) * | 2005-01-14 | 2006-07-27 | Institute Of Physical & Chemical Research | 時間分解蛍光顕微鏡 |
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| JPH0712261B2 (ja) * | 1990-12-17 | 1995-02-15 | 浜松ホトニクス株式会社 | 植物の状態をモニタする方法 |
| JP4041851B2 (ja) | 2003-03-31 | 2008-02-06 | 静岡県 | 花卉の日持ち性判定装置及び方法 |
| JP4813327B2 (ja) * | 2006-11-07 | 2011-11-09 | 浜松ホトニクス株式会社 | 光合成サンプルの評価方法及び光合成サンプルの評価プログラム |
| JP5169857B2 (ja) * | 2009-01-16 | 2013-03-27 | ソニー株式会社 | 蛍光寿命測定装置、蛍光寿命測定方法及びプログラム |
| JP4997314B2 (ja) | 2010-04-23 | 2012-08-08 | 株式会社日本自動車部品総合研究所 | 燃料性状センサ及び燃料性状検出装置 |
| JP5703126B2 (ja) * | 2010-09-30 | 2015-04-15 | 富士フイルム株式会社 | 生体分子検出装置および生体分子検出方法 |
| CN102680448A (zh) * | 2012-05-31 | 2012-09-19 | 上海泽泉科技有限公司 | 测量藻类状态转换的方法 |
| WO2015037643A1 (ja) | 2013-09-10 | 2015-03-19 | 株式会社Ihi | 物質特定システムおよび物質特定方法 |
| US20170281102A1 (en) * | 2016-03-31 | 2017-10-05 | Weng-Dah Ken | Non-contact angle measuring apparatus, mission critical inspection apparatus, non-invasive diagnosis/treatment apparatus, method for filtering matter wave from a composite particle beam, non-invasive measuring apparatus, apparatus for generating a virtual space-time lattice, and fine atomic clock |
| KR20220098146A (ko) * | 2019-10-17 | 2022-07-11 | 씨2센스, 인크. | 감지를 위한 발광 이미징 |
| CN115298537B (zh) * | 2020-03-17 | 2026-03-17 | 国立大学法人东京大学 | 状态确定装置、状态确定方法以及程序产品 |
| US20240156410A1 (en) * | 2022-11-10 | 2024-05-16 | Artilux, Inc. | System and Method for Optical Sensor Measurement Control |
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- 2021-03-17 WO PCT/JP2021/010886 patent/WO2021187536A1/ja not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002039943A (ja) * | 2000-07-27 | 2002-02-06 | Japan Science & Technology Corp | 多光子励起蛍光寿命画像化システム |
| WO2005062027A1 (ja) * | 2003-12-19 | 2005-07-07 | Hamamatsu Photonics K.K. | 有害物質の評価方法、及び有害物質の評価用キット |
| JP2006194770A (ja) * | 2005-01-14 | 2006-07-27 | Institute Of Physical & Chemical Research | 時間分解蛍光顕微鏡 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20230168197A1 (en) | 2023-06-01 |
| CN115298537A (zh) | 2022-11-04 |
| JPWO2021187536A1 (ja) | 2021-09-23 |
| CN115298537B (zh) | 2026-03-17 |
| JP7345939B2 (ja) | 2023-09-19 |
| US12313547B2 (en) | 2025-05-27 |
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