A method for detecting a clarity of a transparent display panel and a detecting apparatus thereof are provided. The detecting method includes: detecting directly a reference pattern sheet by a measuring device to obtain a without-panel measurement value of the reference pattern sheet; placing the transparent display panel between the measuring device and the reference pattern sheet; detecting the reference pattern sheet through the transparent display panel to obtain a with-panel measurement value of the reference pattern sheet; acquiring clarity of the transparent display panel according to the without-panel and with-panel measurement value; wherein, the reference pattern sheet includes a plurality of pattern groups sequentially arranged in a first direction, each of which includes a first region and a second region, and widths of the plurality of pattern groups in the first direction are different. The detecting method can better evaluate a transparent effect of the transparent display panel.

To provide a microspectroscope that can perform a wide range mapping measurement with high sensitivity, at high speed, and with high wavelength resolution.

The Raman spectroscope comprises: a unit for linearly irradiating excitation light; a movable stage for a sample; an objective lens for focusing Raman light from the linear irradiation region; an incident slit provided at the imaging position of Raman light; a spectrometer for diffusing the passing light; a CCD detector for detecting Raman spectral image; and a control device for controlling the mapping measurement by synchronizing the movable stage and the CCD detector. The control device controls the movable stage to move in the direction orthogonal to the longitudinal direction of the linear irradiation light and obtain one average spectrum. At the same time, the control device is configured to perform the cycle of the CCD detector While the stage is moving to obtain one average spectrum of the moving region of the linear irradiation region in one light detection cycle.

Methods and systems for use in detecting an air pocket in a single crystal material are described. One example method includes providing a matrix including a plurality of data units, the plurality of data units including image data related to a region of interest of the single crystal material; determining, by a processor, a difference between data units of the matrix and a corresponding data unit of the matrix, wherein the corresponding data unit is defined by a first operation of the matrix; calculating, by the processor, a first index value based on the differences of the corresponding data units; and identifying an air pocket within the single crystal material based on the first index value and a predetermined threshold.

A system for analyzing fluid includes a housing having first and second opposing surfaces spaced to form a fluid chamber, a light source disposed to direct light at the first surface of the housing; and a digital imaging circuit disposed to detect light at the second surface of the housing. The digital imaging circuit includes a pixel array configured to capture one or more digital images of an illuminated fluid. The system also includes a processor configured to: capture multiple digital images of the fluid at different camera exposure levels, calculate a net radiant energy value at a plurality of different integration times within at least two images, calculate a slope of the net radiant energy value with respect to integration time in a selected image, and determine size distribution and volume fraction of particles within the fluid based on the calculated slope.

A method and apparatus for determining hemoglobin concentration is provided. A method aspect includes the steps of: a) depositing an unlysed, substantially undiluted blood sample into an analysis chamber adapted to quiescently hold the sample for analysis; b) imaging the sample in a region of the analysis chamber where the height of the chamber is no more than about twenty microns (20) or no less than about two microns (2), to produce image signals representative of the optical density of the imaged region; c) determining a sample representative optical density value using the image signals representative of the optical density of the imaged region; and d) determining the hemoglobin concentration of the sample using the sample representative optical density value.

An apparatus for advanced crystallization testing (ACT) for pipeline applications is provided. The apparatus includes: a reaction vessel including an open end and a closed end; a removable cap to hermetically seal the open end, the removable cap including a transparent window made of a transparent solid material; a Raman probe facing toward the transparent window and being configured to collect a Raman signal from inside the reaction vessel through the transparent window; an agitation mechanism to agitate contents of the reaction vessel; a bath to house the reaction vessel and maintain a temperature of the reaction vessel at a set temperature.