21results about "Methods for obtaining spatial resolution" patented technology

A method characterizes gas emissions inside an area bounded by first, second, third, and fourth paths. A first spectrometer transmits a first beam along the first path. The first beam is retroreflected back to the first spectrometer, where it is detected to obtain a first signal. A second spectrometer transmits a second beam along the second path. The second beam is retroreflected back to the second spectrometer, where it is detected to obtain a second signal. A third spectrometer transmits a third beam along the third path. The third beam is retroreflected back to the third spectrometer, where it is detected to obtain a third signal. A fourth spectrometer transmits a fourth beam along the fourth path. The fourth beam is retroreflected back to the fourth spectrometer, where it is detected to obtain a fourth signal. The four signals are processed to identify gas sources inside the area.

Method for producing a surface-treated gallium arsenide substrate, comprising the following steps: a) Providing a gallium arsenide substrate; b) Oxidation treatment of at least one surface of the gallium arsenide substrate in the dry state using UV radiation and / or ozone gas; c) Contacting at least one surface of the gallium arsenide substrate with at least one liquid medium; comprising the following sub-steps: ci) Contacting at least one surface of the gallium arsenide substrate with alkaline aqueous solution, c-ii) subsequent contact of at least one surface of the gallium arsenide substrate with water, c-iii) subsequent contact of at least one surface of the gallium arsenide substrate with acidic aqueous solution, c-iv) subsequent further contact of at least one surface of the gallium arsenide substrate with water. d) Marangoni drying of the gallium arsenide substrate.

A device for detecting a mixture ratio of two components of a textile fabric contains a radiation source for transmitting electromagnetic radiation in a spectral band in the direction of the textile fiber structure, a radiation sensor for receiving at least a part of the electromagnetic radiation, and a spectral filter with spectral properties in the spectral band for filtering at least one part of the electromagnetic radiation. The transmittance of the spectral filter in the spectral band has at least one local maximum and at least one local minimum. The spectral properties of the spectral filter in the spectral band are adapted to the spectral properties of the radiation source and each of the two components such that a radiation intensity received by the radiation sensor is a monotonous function of the mixture ratio of the two components. The device is simple in design and allows the use of spatially resolving imaging radiation sensors.

A leak detection system comprises a transmitter, a detector, and an electronic control unit (ECU). The transmitter directs electromagnetic energy with a predetermined wavelength range, such as infrared energy, onto the surface of a product. The product defines a chamber containing a tracer gas. The detector is positioned between the transmitter and the product at an offset distance from the surface. The detector detects the reflected energy. The ECU receives a signal from the detector, displaying a spectrum of the reflected energy, and identifies a detected leak in the product. This involves comparing the spectrum of the reflected energy with a predefined spectrum of the tracer gas. The tracer gas has a wavelength within the transmitter's predefined wavelength range. In response to the leak, the ECU generates an output signal that identifies the presence and location of the leak.

The present disclosure relates to a method for localizing or tracking individual emitters in a sample according to the MINFLUX principle, wherein the sample is illuminated at several illumination positions in a close range around the emitter from different illumination directions with modulation light which comprises a linearly or flatly extended intensity minimum. A position of the emitter in the sample is calculated from the emissions of the emitter detected at the illumination positions. The invention further relates to a light microscope for carrying out the method.

Disclosed are a detection system and an image forming apparatus. A detection system includes a plurality of terahertz light sources, and a plurality of terahertz wave detection devices that detect terahertz waves, wherein the plurality of terahertz light sources includes a first terahertz light source that outputs terahertz waves in a first on / off pattern having a first period, and a second terahertz light source that outputs terahertz waves in a second on / off pattern having a second period different from the first period.

A leak detection system includes an emitter, detector, and electronic control unit (ECU). The emitter directs electromagnetic energy having a predetermined wavelength range, e.g., infrared energy, toward a surface of a product. The product defines an enclosure chamber containing a trace gas. The detector is positioned between the emitter and the product at an offset distance from the surface. The detector detects reflected energy. The ECU receives a signal from the detector that is indicative of a spectrum of the reflected energy and identifies a detected leak in the product. This includes comparing the spectrum of the reflected energy to a predetermined spectrum of the trace gas. The trace gas has a wavelength within the predetermined wavelength range of the emitter. The ECU generates an output signal in response to the leak, with the output signal identifying a presence and location of the leak.

A battery sensing system and a method of battery sensing are disclosed. The system includes an optical system configured to provide and direct a light beam through a first optical fiber to one or more cells contained within a battery housing and an analyzer configured to obtain absorption / scattering, fluorescence and / or Raman spectra based on an interaction of the light beam with the one or more cells and provide information on a status of the one or more cells.

Provided is a refractive index distribution generation device capable of improving the accuracy of a refractive index distribution of even a thick sample.　This refractive index distribution generation device comprises a processor and a memory. The processor executes refractive index distribution generation processing of generating a refractive index distribution for a processing target image. The refractive index distribution generation processing includes: input processing of inputting, from a memory, the processing target image, first refractive index information indicating the refractive index of a first structure, and second refractive index information indicating the refractive index of a second structure different from the first structure; and setting processing of setting each refractive index constituting the refractive index distribution. The setting processing includes: first setting processing of setting a refractive index, which is based on the first refractive index information, at a position corresponding to a first image region of the processing target image on the basis of a signal strength; and second setting processing of setting a refractive index, which is based on the second refractive index information, at a position corresponding to an image region different from the first image region of the processing target image. The first image region is an image region corresponding to the first structure.

The invention relates to a device (1) for detecting the mixture ratio of two components (41, 42) of a textile fiber structure (4), containing a radiation source (2) for transmitting electromagnetic radiation (3) in a spectrum band in the direction of the textile fiber structure (4), a radiation sensor (8) for receiving at least one part of the electromagnetic radiation (7), and a spectral filter (6) with spectral properties in the spectral band for filtering at least one part of the electromagnetic radiation (5). The degree of transmission of the spectral filter (6) in the spectral band has at least one local maximum and at least one local minimum. The spectral properties of the spectral filter (6) in the spectral band are adapted to the spectral properties of the radiation source (2) and each of the two components (41, 24) such that the radiation intensity received by the radiation sensor (8) is a monotonous function of the mixture ratio of the two components (41, 42). The device (1) is simply constructed and allows the use of spatially resolved imaging radiation sensors (8).

Techniques are provided for sensing and using humidity dynamics. In a first set of embodiments, a humidity dynamics sensor includes a chamber that is open only at one wall opening. The sensor also includes a pair of humidity sensors disposed in a wall of the chamber at different distances from the wall opening. Each sensor is configured to measure humidity inside the chamber. The sensor also includes a gasket surrounding the wall opening of the chamber. At least a portion of the wall of the chamber is transparent to at least a portion of photosynthetically active optical wavelengths. The gasket is configured to form an airtight seal with a surface of a subject.

A method for screening molecular crystal megalibraries for non-centrosymmetric structure can include scanning a substrate comprising a plurality of molecular crystals with a tunable laser, a focusing objective, and a detector, to identify molecular crystals emitting a second harmonic generation (SHG) signal. The method also includes correlating the regions having an SHG signal with elemental composition and optical images to identify compositions of molecular crystals having a non-centrosymmetric crystalline structure. The method can be performed at a plurality of measuring temperatures to identify the Curie temperature of a composition. The method can further include designing a composition with a target Curie temperature.

Provided herein are systems, devices, and methods for rapid and accurate measurement of analyte particle binding-induced aggregation of reporter particles. In the presence of analyte particles of interest, the reporter particles form aggregates whose average particle size increases with increasing analyte concentration. From analysis of the average particle size determined from the sample frame, the presence and / or concentration of the analyte can be determined.

Provided is an antibiotic susceptibility evaluation apparatus including a sample unit including a sample and at least an antibiotic disk arranged on the sample, a light source radiating coherent light to the sample unit, an image sensor detecting transmitted light passing through the sample unit to obtain a sample image, and a controller configured to receive a first sample image, which is an image of the sample at an initial time when the antibiotic disk is arranged on the sample unit, and a second sample image, which is an image of the sample after a preset time, to obtain a spatial correlation of an interference pattern between the first sample image and the second sample image, and to evaluate susceptibility of the sample to antibiotics based on the spatial correlation according a position.

This application belongs to the field of coherent diffraction imaging, specifically disclosing a method and system for reconstructing stacked diffraction imaging based on subgradient projection regularization. Through this application, based on the convex problem optimization theory of subgradient projection, a spatially varying gradient weighting function is further introduced into the stacked diffraction imaging reconstruction model to adaptively adjust the update step size, thereby improving the iterative convergence speed. This method can achieve a balanced improvement in convergence speed within the support domain without introducing any additional computational overhead by penalizing or suppressing extreme step sizes during the update process. Furthermore, this method requires no hardware modification, is directly compatible with stacked diffraction imaging models, and reduces the parameter sensitivity of the iterative algorithm during reconstruction, achieving robust convergence without fine-tuning.

A measurement system may direct an illumination beam including at least one of a first frequency comb or a second frequency comb to a sample and generate a sequence of images of the sample based on the first frequency comb and the second frequency comb. The system may include one or more coding optical elements to encode data associated with one or more transfer matrix elements into the sequence of images of the sample. The system may further generate a transfer matrix dataset including measurements of at least one of the one or more transfer matrix elements associated with the sample based on at least one of a spectral, spatial, or temporal analysis of the sequence of images, and generate one or more measurements of the sample based on the transfer matrix data set.

The present invention provides a geological-system based data capture apparatus for capturing data to be used in modifying hyperspectral data relating to a geological structure The data capture apparatus includes a spectral irradiance measuring device for providing spectral irradiance data. The data capture apparatus also includes a visual atmospheric sensor for providing visual atmospheric data. Further, the data capture apparatus includes a data accumulator for accumulating the provided spectral irradiance data and the provided visual atmospheric data. Advantageously, the accumulated spectral irradiance data and visual atmospheric data may be used in modifying the light-sensitive hyperspectral data for improved mapping of the geological structure.

Systems and methods for immersion imaging of a flowcell. In one example, an imaging system includes liquid ports in leading and trailing positions relative to a scanned imaging objective. The leading liquid port dispenses an immersion liquid into a space between the distal end of the imaging objective and the flowcell's cover, with the trailing liquid port collecting the immersion liquid. In another example, an imaging system includes a flowcell with a cover that is moveable relative a substrate. The system is configured to move the imaging objective and flowcell cover as a unit relative to the flowcell substrate.

The invention relates to leak detection using reflection-based imaging. A leak detection system includes a transmitter, a detector, and an electronic control unit (ECU). The emitter directs electromagnetic energy having a predetermined wavelength range, such as infrared energy, towards the surface of the product. The product defines a closed chamber containing a trace amount of gas. The detector is located between the emitter and the product at an offset distance from the surface. The detector detects reflected energy. The ECU receives a signal from the detector indicative of an energy spectrum of the reflected energy and identifies a detected leak in the product. This includes comparing an energy spectrum of the reflected energy to a predetermined energy spectrum of the trace gas. The trace gas has a wavelength within a predetermined wavelength range of the emitter. The ECU generates an output signal in response to the leakage, wherein the output signal identifies the presence and location of the leakage.

A system for detecting defects in wood, comprising: an inspection station (10) configured to receive a wood workpiece; a light source (21) configured to illuminate the wood workpiece at the inspection station (10) with light having a wavelength in the range of 225 nm to 625 nm; an imaging device (22) configured to measure the absorbance of the light by the illuminated area of the wood workpiece; and an analyzer (23) configured to classify areas exhibiting absorbance above a predetermined threshold as areas containing a resin defect.

Methods and systems are described for performing cross-correlational analysis. An example method may comprise receiving sensor data indicative of a subject region. The example method may comprise determining signal data indicative of change in the sensor data. The example method may comprise determining mapping data associating a sensor coordinate associated with the first field of view and a sensor coordinate associated with the second field of view with a corresponding three-dimensional spatial location in the subject region. The example method may comprise determining change data based on the mapping data, the signal data, and a cross-correlation process. The example method may comprise causing output of the change data.