Abstract: An antioxidant sensor includes a pressure sensor configured to obtain a contact pressure between an object and an optical sensor; the optical sensor configured to, based on the obtained contact pressure exceeding a set threshold pressure, emit a first light of a first wavelength to the object, and receive the first light reflected or scattered from the object; and a processor configured to determine a contact portion of the object in contact with the optical sensor, set a threshold pressure, among different threshold pressures, according to the determined contact portion, and determine an antioxidant value based on the received first light.

Abstract: A multi-mode illumination system, including: a first illumination module; a second illumination module; and a third illumination module, as disclosed herein.

Abstract: A method for quantitatively and indirectly measuring non-fluorine anti-soil chemistry in carpet applications, is based on a known amount of FI trace to be added along with anti-soil chemistry in formulation prior to application to a carpet surface. The anti-soil chemistry with the trace amount of FI is then applied to the carpet through a topical foam or spray applicator during a precoating process. After completion of the precoat process, a carpet sample is collected, carpet face fiber is shaved, and FI is extracted using water. The extracted water solution is used to measure the fluorescence intensity (in counts per second or “CPS”) using a Fluorimeter.

Abstract: An additive manufacturing system comprises an apparatus arranged to distribute layer of metallic powder across a build plane and a power source arranged to emit a beam of energy at the build plane and fuse the metallic powder into a portion of a part. The system includes a processor configured to steer the beam of energy across the build plane and receive data generated by one or more sensors that detect electromagnetic energy emitted from the build plane when the beam of energy fuses the metallic powder. The received data is converted into one or more parameters that indicate one or more conditions at the build plane while the beam of energy fuses the metallic powder. The one or more parameters are used as input into a machine learning algorithm to detect one or more defects in the fused metallic powder.

Abstract: Offset illumination using multiple emitters in a fluorescence imaging system is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The emitter comprises a first emitter and a second emitter for emitting different wavelengths of electromagnetic radiation. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of a hyperspectral emission, a fluorescence emission, and/or a laser mapping pattern.

Abstract: An object of the present invention is to provide a Raman gain efficiency distribution testing method and a Raman gain efficiency distribution testing apparatus for measuring a Raman gain efficiency distribution of a fundamental mode and a first high-order mode in a few-mode fiber.

Abstract: To provide a sheet-like structure capable of highly accurately estimating a sheet-like shape. A sheet-like structure includes a sheet-like member and a plurality of detection sensors. The sheet-like member extends along an in-plane direction orthogonal to a thickness direction and receives light incident on the sheet-like member. The plurality of detection sensors are dispersedly arranged on the sheet-like member along the in-plane direction and are for detecting an incident angle of the light with respect to the sheet-like member at each arrangement position of the plurality of detection sensors.

Abstract: The present disclosure provides a lidar and a lidar control method. The lidar includes a plurality of laser transmitters configured to transmit laser light, and an oscillating mirror configured to change a direction of a light path of the transmitted laser light. The lidar control method includes transmitting, by a plurality of transmitters, laser light; and changing, by an oscillating mirror, a direction of a light path of the transmitted laser light. The plurality of laser transmitters constitute a laser transmitter array of M rows and N columns, where M is an integer greater than or equal to 2 and N is an integer greater than or equal to 2.

Abstract: An improved non-line-of-sight camera provides for real-time evaluation of a relay wall with respect to illuminated points and sensing areas for higher accuracy and practical field use. Gated sensing allows improved recovery of faint photon signals and higher resolution. The system allows an operator to a find virtual camera from looking around multiple corners.

Abstract: An inspection system for a drug container is provided to identify foreign matter, such as particles or fibers, within the drug container prior to filling with a drug. The system includes a camera device aligned with an axis of the drug container and captures a series of images of an interior surface of a sidewall of the drug container while the robot causes relative movement between the drug container and the camera device along a linear path. Atypical lighting, which improves contrast between particles and the background in images is employed to aid detection. A control circuit then processes the series of images to identify foreign matter within the drug container.

Abstract: The present disclosure relates to a method for determining an impact of optical component degradation on the functionality of an electro-optical sensor system, said method (100) comprising a step of obtaining (110) test data relating to the state of the optical component; a step of providing (130) a set of correlation values based on test data and correlation data, said correlation data correlating test data to an optical component degradation state, wherein the optical component degradation state relates to a functionality impact of the electro-optical sensor system; and a step of obtaining (140) an electro-optical sensor system functionality estimate based on the provided set of correlation values.

Abstract: Disclosed is an interferometric fiber optic sensor for detecting chemical substances. A light source a detector are connected to a light dividing element in an optical path with an optical fiber segment. The optical fiber segment is further optically coupled with a measuring element across a residual cavity. The measuring element further has a face adapted to be exposed to a test substance that may contain a chemical substance to be detected. The optical fiber segment and the measuring element can be held together so that there is only the residual cavity between them. The optical fiber segment is contained, at least along part of its length, within a capillary. A first end part of the capillary is joined with the measuring element while another portion of the capillary is joined or clenched on the optical fiber segment, so that the capillary, the optical fiber segment and the measuring element together form a fiber optic measuring probe as a part of the optical path with the light source and detector.

Abstract: An apparatus for detecting tilt of a fixture and method thereof.

Abstract: An angle measuring device includes first and second component groups and a bearing. The first component group includes a scale element having a first graduation. The second component group has a first modular unit, including a position sensor, and a second modular unit, including first, second, and third position transducers, and a compensation coupling. The first and second modular units are connected in a torsionally stiff but axially and radially flexible manner. The angle measuring device is operable in first and second modes. In the first mode, the first graduation is scannable by the position sensor to determine a first angular position. In the second mode, the first graduation or a further graduation situated on the scale element is scannable by the position transducers to determine further angular positions. A corrected relative angular position is determinable based on the first angular position and the further angular positions.

Abstract: A locating system for determining a current position in an elevator shaft of an elevator system extending in a main extension direction includes a first distance sensor by which a first distance and a second distance, which second distance is perpendicular to the first distance, from a first reference element can be measured, as well as a tilt sensor by which a rotation about a horizontal first axis and a horizontal second axis perpendicular to the first axis can be measured, and a measuring system by which a position of the locating system can be determined in the main extension direction of the elevator shaft.

Abstract: An easily inspected shaft assembly is provided and includes a shaft, a sleeve receptive of a portion of the shaft and an optically activatable layer including first and second sections disposed on respective exterior surfaces of the shaft and the sleeve, respectively, such that the first and second sections move relative to one another as the shaft and the sleeve move relative to one another.

Abstract: A method for determination of a distance from an observation reference point to an object in a measurement volume that can be utilized in a passive optical remote sensing system, and optical remote sensing systems that utilizes the method.

Abstract: A device and method is described for analysing the elemental composition of a liquid sample utilizing a combination of electrochemical pre-concentration followed by spectrochemical analysis of analytes in a single device. The device consists of two electrodes for the purpose of pre-concentration of the analyte ions by electrodeposition, a DC power supply/potentiostat/galvanostat, a high voltage power supply capable of creating an electrical discharge such as arc, spark, glow discharge or plasma, a spectrometer capable of recording a spectrum generated during such discharges as well as a pump(s) for pumping the analyte containing solution. Such a device is autonomous, field-deployable and capable of providing online analysis.

Abstract: Disclosed herein is a multiplexed design with three-dimensional plasmonic nanofocusing and confinement of light, demonstration of reproducible and robust single-molecule optical fingerprints using two complementary vibrational spectroscopy techniques (infrared and Raman spectroscopy), identification of respective vibrational modes which uniquely fingerprint the biomolecular species, and facile differentiation of respective fingerprints in DNA mixtures, as well as epigenetic modifications. While the nanometer scale mode volumes still prevent single letter identification of DNA sequence, we show an alternative method for identifying A, T, G, C DNA nucleotides in “k-mers” using sequences of these blocks as a unique and high-throughput alternative to single letter sequences (similar to binary and hexadecimal systems). Furthermore, additivity shown in single-molecule DNA mixtures and robust optical signatures can also be used in a raster-type step scan to identify single letter sequences.

Abstract: An image recorder (18) supported above a conveyor (22) captures images of a top surface of the loaded pallet (30) supported on the conveyor (22). The image is transmitted to a computer (26). A software routine stored on a memory on the computer (26) compares the image to a manufacturing specification. The software routine determines whether the image is within a manufacturing tolerance of the manufacturing specification.