Abstract: A change in a substance in a depth direction of an analyte is easily estimated. An analysis and observation device includes: a library holding section that holds a substance library in which a substance is associated with a type of an element constituting the substance and a content of the element; and a component analysis section that estimates a type of an element constituting a substance and a content of the element based on a spectrum, and estimates the substance based on estimated characteristics and the substance library. The component analysis section estimates a type of an element constituting a substance, a content of the element, and the substance at each of a plurality of positions having different analysis depths.

Abstract: In some examples, dual-end loopback-based multi-fiber cable measurement may include connecting at least two multi-fiber loopback devices respectively to a near end and a far end of a multi-fiber cable to place at least two fibers of the multi-fiber cable in series. The at least two multi-fiber loopback devices may include a near-end multi-fiber loopback device connected to a fiber optic reflectometer and to the near end of the multi-fiber cable to connect together at least two near-end fibers of the multi-fiber cable. Further, the at least two multi-fiber loopback devices may include a far-end multi-fiber loopback device connected to the far end of the multi-fiber cable to connect together at least two far-end fibers of the multi-fiber cable.

Abstract: A closed-loop coherent oscillator matterwave (COMW) system generates a COMW. Atoms tunnel into a COMW oscillator to populate the COMW generated and emitted by the oscillator. A detuned light-field-based COMW splitter divides the emitted COMW between an output COMW and a regulator COMW. A COMW resonator, including detuned light-field mirrors, receives the regulator COMW and returns a feedback COMW. A COMW sensor evaluates the intensity of the feedback COMW. A controller adjusts the oscillator based on the evaluation to optimize the COMW output of the system.

Abstract: A device for automatically detecting a through-hole rate of a honeycomb sandwich composite-based acoustic liner, including a customized tooling, a data acquisition system, a motion mechanism and a data processing system. The data acquisition system is configured to acquire a surface three-dimensional (3D) point cloud data of an acoustic liner using a two-dimensional (2D) laser profile sensor in a manner of parallel movement shooting, and connected with a graphics workstation. The motion mechanism includes an industrial robot, and the 2D laser profile sensor is fixed at an end of the industrial robot. The motion mechanism is configured to support the data acquisition system to perform translational scanning. The data processing system includes the graphics workstation, and plays a role of path planning and data storage. A method for automatically detecting a through-hole rate of a honeycomb sandwich composite-based acoustic liner is also provided.

Abstract: The present disclosure is directed to a reticle assembly having a reticle and a pellicle attached to a pellicle support frame positioned on the reticle and includes a sensor assembly having optical and sensor components, which monitor the pellicle. The optical components and the sensor components of the sensor assembly may be coupled to a controller, which may be further coupled to one or more semiconductor process tools.

Abstract: A non-invasive tension measuring system is provided with at least one pair of sensors positioned longitudinally and at a predetermined distance from each other along a linear system. At least one operationally connected processor executes instructions to detect, using the sensors, a transverse wave propagating along the linear system in order to determine a time delay of the transverse wave, to determine a propagation speed of the transverse wave based on the time delay, and to determine a tension of the unit length of the linear system based at least in part on the propagation speed and a mass per the unit length of the linear system.

Abstract: The present invention relates to an FMCW-LiDAR distance measurement apparatus in which a light source, in particular a laser, generates a frequency modulated transmission light beam as a transmission signal having a predetermined frequency deviation and transmits said frequency modulated transmission light beam into a measurement zone; a light receiver receives light reflected by objects in the measurement zone as a reception signal; a mixer mixes at least a portion of the transmission signal with the reception signal and with an oscillator frequency to generate a mixed signal; and the oscillator frequency is adapted to a desired measurement zone to achieve a high measurement accuracy in the desired measurement zone.

Abstract: A method for checking value documents involves the steps of: irradiating, by an excitation device, a first side of the value document with excitation radiation for exciting luminescence of a luminescent substance on the value document, such that the first side is a back side of the value document, capturing luminescence radiation which was excited by excitation of the luminescent substance at a front side of the value document by at least a part of the excitation radiation after transmission through the substrate of the value document and exits the value document at least partly at the back side of the value document after transmission through the value document, by a capture device, and checking the value document in dependence on at least one property of the captured luminescence radiation by means of an evaluation device.

Abstract: An imaging system includes: a first light source that emits first light having a spectrum including discrete first frequency components arranged at first frequency intervals; a second light source that emits second light having a spectrum including discrete second frequency components arranged at second frequency intervals, the second frequency intervals being different from the first frequency intervals; a mixing optical system that mixes the first light and the second light to generate third light including at least one optical beat the intensity of which changes at a beat frequency expressed by the difference between at least one of the discrete first frequency components and at least one of the discrete second frequency components; an imaging element having a variable sensitivity in an exposure period; and a control circuit that changes the sensitivity of the imaging element at the beat frequency of the at least one optical beat.

Abstract: In an optical measurement method, light is directed from a light generator to a light path cell. A light path is generated by continuously reflecting the light between first and second high reflection mirrors within a light path cell that face to each other. An optical signal is detected from an aerosol sample present within a range of the light path. The optical signal is separated into a particle signal and a gas signal by using a statistical methodology. A particle concentration is calculated from the particle signal by using an assumption of an optical particle counter (OPC). A gas concentration is calculated from the gas signal by using optical characteristic data of gas.

Abstract: An analysis system includes a reflective substrate; a hollow elongate structure with two ends; two polymer supports coupled to the ends and joined to the substrate; a piezoelectric device coupled to the substrate and designed to produce vibrations in the elongate structure; a laser for emitting a beam; a beam splitter; a photodetector; an amplification module; and a processor. The laser beam passes through the cavity and is absorbed by the photodetector, which generates a signal that is transmitted to the amplification module. The amplification module separates the signal into a modulated component and an unmodulated component. The signal is transmitted to the processor to obtain the resonance frequency and reflectance and to provide the piezoelectric device with an excitation signal at the resonance frequency.

Abstract: Outlet fittings are provided. Outlet fittings of interest include an elongate structure and an opening at a proximal end for receiving a flow stream from the distal end of a flow cell. In addition, the outlet fittings described herein are configured to reduce the formation of bubbles at the interface between the outlet fitting and the flow cell. In certain cases, outlet fittings do not include a planar surface in contact with the received flow stream. Flow cytometers and methods employing the subject outlet fittings are also provided.

Abstract: An apparatus and method of inspection are provided that inspects the end-face of two or more fiber optic connectors simultaneously without the need to move a probe from one end-face to another end-face and inspecting them one by one.

Abstract: The disclosure discloses a laser opto-ultrasonic dual detection method and device using a pulse laser incident on the surface of a sample to generate plasma and the optical emission and ultrasonic waves are generated, to simultaneously analyze the element compositions, structural defects and residual stress of the sample. The detection system includes an excitation unit, a spectrum detection module, an ultrasonic detection module and an analysis control module. The digital delayer generator is connected to the computer, the high-precision 3D displacement platform is electrically connected to the digital delayer generator. The the pulsed laser is focused on and incident onto the surface of the sample to be tested through modulation of the optical path system to generate plasma, which simultaneously generate optical emission and ultrasonic waves. The ultrasonic detection unit is configured to detect the ultrasonic waves. The spectrum detection unit is configured to detect the plasma emission spectrum.

Abstract: A Broadband Diffractive-Optical Element (BDOE) as a lens whose f-number and numerical aperture are decoupled. The BDOE can include a substrate and an array of optical cells formed on the substrate to have a non-linear arrangement of cell heights to diffract light into a focal spot. The geometry of the focal spot can be designed to decouple the f-number from the numerical aperture for an imaging device that employs the broadband diffractive optical element as a lens.

Abstract: An electricity measuring type surface plasmon resonance sensor includes: a plasmon resonance intensifying sensor chip in which a prism and a sensor chip including an electrode, a silicon semiconductor film, and a plasmon resonance film electrode arranged in this order are arranged in an order of the prism, the electrode, the silicon semiconductor film, and the plasmon resonance film electrode; and an electric measuring apparatus which directly measures a current or voltage from the electrode and the plasmon resonance film electrode.

Abstract: The disclosure belongs to the technical field of precision test and measurement, and provides a two-dimensional photoelectric autocollimation method and device based on wavefront measurement and correction. According to the disclosure, a link of wavefront measurement and correction of a reference light path is added to a traditional autocollimator measuring method. By using wavefront distortion information of the reference light path in the instrument and driving a deformable mirror to compensate for phase distortion of a beam, the link realizes measurement and control on aberration of the optical system of the autocollimator and improves the imaging quality and spot positioning accuracy of the optical system, thereby improving the angle measurement accuracy of the autocollimator.

Abstract: An embodiment of a gas analyzer is described that comprises a light source configured to produce a substantially collimated first beam with a diverging angle of less than about 15 degrees; a gas cell comprising an inlet configured to introduce a gas into the gas cell, an outlet configured to remove the gas from the gas cell, and a plurality of mirrors configured to reflect the substantially collimated first beam within the gas cell; and a detector configured to generate a signal in response to the substantially collimated first beam.