The purpose of the present invention is to provide a fiber-reinforced resin material having minimal directionality of strength as well as excellent productivity, a method and device for manufacturing a fiber-reinforced resin material whereby a molded article is obtained, and a device for inspecting a fiber bundle group. A method for manufacturing a sheet-shaped fiber-reinforced resin material in which a paste (P1) is impregnated between cut fiber bundles (CF), the method for manufacturing a fiber-reinforced resin material including a coating step applying a coating of a paste (P1) on a first sheet (S11) conveyed in a predetermined direction, a cutting step for cutting a long fiber bundle (CF) using a cutter (113A), a scattering step for dispersing the cut fiber bundles (CF) and scattering the cut fiber bundles (CF) on the paste (P1), and an impregnation step for pressing a fiber bundle group (F1) and the paste (P1) on the first sheet (S11) and impregnating the paste (P1) between the fiber bundles (CF).

A method for measuring an element concentration of a material includes: a material sample is irradiated with first electromagnetic waves; second electromagnetic waves radiated by the material sample are obtained under the action of the first electromagnetic waves; material property parameters of the material sample are determined by detecting the second electromagnetic waves; and an element concentration of the material sample is determined according to the material property parameters.

Composite resin containing cellulose is irradiated with infrared light, reflected light from the composite resin irradiated with the light is received, normalization is performed at a peak position maximized in a peak at 2800 cm.sup.−1 or more and 3000 cm.sup.−1 or less, which is a C—H stretching peak caused by the composite resin, in a reflection or absorption spectrum obtained by the reflected light, and a reflection or absorption spectrum for determination is obtained. The spectrum is used to acquire a ratio value of a spectral intensity (background intensity) at a position of 1000 cm.sup.−1 or less according to a determined resin type and different from a wave number at which a peak derived from resin of the determined resin type is expressed, and a ratio of the spectral intensity (background intensity) is used so that a composite of cellulose combined in composite resin can be determined with high accuracy.

An apparatus (1) for inspecting an object, where the object is made up of a first layer of plastic material and a second layer of EVO or EVOH and has a base wall (A) and a side wall (B) which is inclined relative to the base wall (A), comprises: an inspection zone (10) in which the object can be placed for inspection; a conveyor (12) for feeding the object to the inspection zone (10) along a feed plane (P); an imaging device (14) configured to view the object positioned in the inspection zone (10) and to generate an image (143) of the object; a processor (151), configured to process the image (143), to inspect the second layer. The conveyor (12) is configured to dispose the object in the inspection zone (10) with the base wall (A) positioned according to a predetermined orientation relative to the feed plane (P).

Fluorescent pigment is introduced into the plastic composition, preferably a thermoplastic, especially polyethylene or polypropylene, in the granules formation stage, in addition to possible standard components of the composite, mixed, granules are formed, and then the granules are formed into a finished building material component, and then, with the help of a known fluorimeter, the fluorescence intensity of individual parts of the surface of a plastic element is measured and the homogeneity of the material is inferred on the basis of the differences in the results of the fluorescence intensity measurements.

A method of evaluating a laminate formed of two or more layers bonded to each other includes an image obtaining step of obtaining a two-dimensional image of the laminate; a detecting step of detecting air-pocket corresponding regions from a two-dimensional image; a characteristic value obtaining step of determining a characteristic value related to areas of the air-pocket corresponding regions; and an evaluation step of evaluating the laminate based on the characteristic value. is a method of evaluating a laminate.

Provided is a method for the simultaneous determination of parameters, in particular of at least two, three or four parameters, of at least one resin layer applied to at least one carrier material by recording and evaluating at least one NIR spectrum in a wavelength range between 500 nm and 2500 nm, preferably between 700 nm and 2000 nm, more preferably between 900 nm and 1700 nm, and particularly advantageously between 1450 nm and 1550 nm, using at least one NIR measuring head, in particular at least one NIR multimeter head.

A laser shearography end effector for inspection in an automated inspection and repair system for composite parts. A laser shearography system including an excitation system and a laser shearography camera is supported on a frame for movement with the frame. A slave tool changer is secured to the frame for releasably and operatively connecting the inspection tool to an industrial robot such that the industrial robot can move the inspection tool along a work piece as the laser shearography system inspects the work piece and such that the laser shearography end effector is interchangeable with at least one other automatic inspection end effector or repair end effector of the automated inspection and repair system.

A system for measuring thermal degradation of composites includes a cylindrical body; a bottom cover having a lower central aperture; an upper concave mirror facing the bottom cover with an upper central orifice concentric with a central axis of the body; a lower concave mirror facing the upper concave mirror with a lower central orifice concentric with the central axis; a source of actinic radiation between the upper concave mirror and the lower concave mirror on the central axis to direct actinic radiation through the lower central orifice and lower central aperture; and a camera with an image sensor positioned concentrically relative to the upper central orifice; wherein the bottom cover is adjustable relative to the cylindrical body to provide a focusing function for the image sensor by varying the distance from the lower central orifice and the upper reflective surface.

There is described an online inspection method and system having an illumination system that provides bright-field and dark-field illumination concurrently or sequentially, at varying intensities, in order to acquire images that may be read by an image processing device. The image processing device may obtain measurements of features in the images and evaluate acceptability of the features.