A method for a wearable device to determine a biological parameter of a tissue of a person. To apply an emitting of a first and a second wavelength of light towards the tissue. To collect and sense a first and a second set of frequency bands from the signals received back from the first and the second wavelengths, respectively. The first set of frequency bands represents a first signal which corresponds to a combination of the biological parameter and an extraneous noise. The second set of frequency bands represents a second signal mainly comprising the extraneous noise. To subtract the first set of frequency bands from the second set of frequency bands in the frequency domain to obtain a third set of frequency bands. The third set of frequency bands represents a third signal corresponding to the biological parameter.

A mount assembly includes a stage including a base and one or more sidewalls extending upward from the base to define an elongated channel, and a holder including an elongated body having a first end portion and a second end portion opposite the first end portion, a bracket extending upward from the elongated body at the first end portion, and a foot extending upward from the elongated body at the second end portion. The elongated body is positionable within the elongated channel. An inspection device is extendable between the bracket and the foot.

The present disclosure provides devices, systems, methods for processing and/or analyzing a biological sample. An analytic device for processing and/or analyzing a biological sample may comprise a moving carriage. The analytic device may be portable. The analytic device may receive instructions for performing an assay from a mobile electronic device external to a housing of the analytic device.

An optical scanning system including a radiating source capable of outputting a source light beam, a de-scan lens that is configured to output a de-scanned light beam, the de-scanned light beam is created by focusing light reflected from the sample and the de-scan lens is located approximately one focal length of the de-scan lens from an irradiation location where the light beam irradiates the sample, a focusing lens that is configured to output a focused light beam, a collimating lens that is configured to output a collimated light beam, a polarizing beam splitter that is configured to be irradiated by the collimated light beam, and a detector that is configured to be irradiated by at least a portion of the collimated light beam that is not reflected by the polarizing beam splitter.

Systems and methods are provided for sample processing. A device may be provided, capable of receiving the sample, and performing one or more of a sample preparation, sample assay, and detection step. The device may be capable of performing multiple assays. The device may comprise one or more modules that may be capable of performing one or more of a sample preparation, sample assay, and detection step. The device may be capable of performing the steps using a small volume of sample.

An optical fiber laser induced breakdown spectroscopy detection device and a detection method are provided. The device comprises an optical fiber LIBS detector and a master control detection system. The master control detection system is installed in the master control room of a nuclear power plant, and the optical fiber LIBS detector is configured to perform detection in a pipeline. The master control detection system and the optical fiber LIBS detector are connected to each other via the transmission optical fiber and the control signal line. The remote on-line detection of the positioning and fixed point of the designated area of the inner wall of the main pipeline of the nuclear power plant can be detected on line in the master control room of the nuclear power plant.

An ellipsometer, polarimeter and the like system operating in the infrared spectral range (0.75 μm to 1000 μm), utilizing a tunable quantum cascade laser (QCL) source in combination with dithering capability to reduce speckle and standing wave effects, dual-rotating optical elements, a single-point detector, as well as optional means of reducing the size of the probe beam at the measurement surface and optional chopper for lock-in detection.

An inspection device includes an objective lens that transmits inspection light reflected from a sample during inspection and measurement light from a point light source during aberration measurement, a first pupil relay lens that transmits the inspection light and the measurement light, a second pupil relay lens in which an intermediate imaging plane is formed between the second pupil relay lens and the first pupil relay lens, a diffraction grating disposed between the first pupil relay lens and the intermediate imaging plane and that diffracts the measurement light, a point diffraction interferometry plate disposed within a depth of focus of the intermediate imaging plane and that selectively transmits the diffracted light, a first detector that detects an image of the sample, and a second detector that detects a fringe image of the measurement light.

Wearable apparatus for monitoring various physiological and environmental factors are provided. Real-time, noninvasive health and environmental monitors include a plurality of compact sensors integrated within small, low-profile devices, such as earpiece modules. Physiological and environmental data is collected and wirelessly transmitted into a wireless network, where the data is stored and/or processed.

A holder for drying includes a first member including a first tubular portion that protrudes like a tube and an annular second member that can fix filter paper in a flat state under tension by being fitted over the filter paper to surround an outer side of the first tubular portion while the filter paper is carried on the first tubular portion.