110results about "Investigating moving sheets" patented technology

The invention relates to a machine (01) for processing sheets (02), said machine (01) having at least one inspection device (08; 768), and wherein the machine (01) has at least one sheet feed (07; 708); 709); 711, 712; 712, 712; 713, 713; 714) which defines a section (11) of a transport path (09) provided for transporting a sheet (02), the section (11) comprising an inspection region (12), and the inspection device (08; 768) has at least one sensor device (13) arranged in alignment with the examination region (12), and wherein the examination device (08; 768) has at least one first illumination device (14) arranged in alignment with the examination region (12), the first illumination device (14) being arranged so as to be pivotable about a first pivot axis (17) so as to be switchable between different illumination positions, the first pivot axis (17) intersecting the examination region (12) or having a minimum distance from the examination region (12) of at most 20 mm.

The invention relates to the technical field of semiconductor detection, in particular to front and back side detection equipment, which comprises a conveying mechanism, a front side detection mechanism, a back side detection mechanism and a back side detection mechanism, a first gap is formed between the first conveying belt and the second conveying belt, a second gap is formed between the second conveying belt and the third conveying belt, and the second conveying belt is movably arranged in the first direction; the front surface detection mechanism is arranged at the top of the conveying mechanism and is used for detecting the front surface of the flexible plate passing through the first gap; according to the design, the flexible plates do not need to be classified in advance, the conveyor belt gap is directly and dynamically adjusted according to the characteristics of different areas of the flexible plates in the detection process, the detection process is simplified, the detection efficiency is remarkably improved, and the detection efficiency is improved. And the requirements of large-scale production on efficient and accurate detection are met.

The invention relates to the technical field of zero-dyeing spun fabrics, in particular to dyeing degree detection equipment and process for zero-dyeing spun fabrics, which comprises a fabric conveying frame, a pressing mechanism is fixedly connected to the front side of the top of the fabric conveying frame, and an extrusion mechanism is fixedly connected to the rear side of the pressing mechanism. By arranging the fabric conveying frame, the material pressing mechanism and the extruding mechanism, the efficient and accurate zero-dyeing spinning fabric coloring degree detection process is achieved, through a series of precisely-designed mechanical structures and transmission devices, automatic rolling, soaking, extruding and laser scanning detection of the fabric are achieved, and the detection efficiency is improved. The device and the process have the advantages that the accuracy and the reliability of detection results are guaranteed, the whole detection process is compact and ordered, the production quality and the production efficiency of the zero-dyeing spinning fabrics are greatly improved, in addition, the device and the process have high flexibility and are suitable for the zero-dyeing spinning fabrics with different thicknesses and materials, and the application range of the device and the process is further widened.

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.

The invention relates to a measuring device (22) for inline measurement of the adhesion strength of a coating (16) of an electrode (12), comprising two deflecting rollers (28) and a measuring roller (30), which are aligned with their respective central axes parallel to each other, wherein the measuring roller (30) is configured to be moved in a lateral direction (32) perpendicular to a longitudinal extension direction of the central axes relative to the deflecting rollers (28), wherein the deflecting rollers (28) are configured to be positioned against the same side of the electrode (12) and the measuring roller (30) is configured to be positioned against the other side of the electrode (12), whereby by moving the measuring roller (30) the electrode (12) can be positioned around the measuring roller (30), whereby the electrode (12) has a bend in a test area defined by a radius of the measuring roller (30), and comprising an optical defect detection device (34).which is designed to optically detect and evaluate the area of ​​the electrode (12) to be tested.

A compact C-shaped scanner employs at least two sensors and has a mechanism to standardize or calibrate the sensors. The upper and lower elongated beams of the C-frame include a mid-beam sensor and an outer beam sensor. The scanner can monitor the entire width of a continuous sheet by advancing the scanner back and forth along a scanning distance that is only about half that of the sheet width thereby minimizing the required offsheet distance by an amount approaching half the width of the sheet being monitored. Standardization tiles consisting of references materials that are positioned laterally from the edges of the moving sheet allow for calibration of the sensors which operate either in the transmissive or reflective mode. Selected sheet properties or characteristics of the sheet material can be measured. The two sensors can operate in the transmissive or four sensors can operate in the reflective mode.

The invention relates to a method for detecting a number of corrugated board sheets in a stack, comprising: - detecting a surface modulation in an overlapping shingled stream by means of sensors, - determining the number of corrugated board sheets on the basis of the detected surface modulation, and - outputting the number of corrugated board sheets. The proposed solution also comprises a device for detecting a number of corrugated board sheets in a stack, a computer program product, and a corrugating machine.

To provide a method for calendering an electrode tape, which can achieve higher total facility efficiency.SOLUTION: A method for electrode tape calendering has a calendering process, in which an electrode tape 37 is guided through a roller nip 15 of a pair 9 of rollers of a calendering device 1 while compressing the electrode tape. During the calendering process a defect detection step is carried out, in which at least one defect 39 of the electrode tape is directly or indirectly detected. During the calendering process, a defect is detected during the defect detection step and the pair of rollers is adjusted from a calendering position of the pair of rollers to an open position of the pair of rollers in an opening step, and this is before the defect reaches the roller gap. The defect detection step and / or the opening step is carried out, preferably automatically or fully automatically, via an open-loop and / or closed-loop control system of the calendering device.SELECTED DRAWING: Figure 1

The problem solved by the present invention is to provide a pinhole detection device with an improved accuracy of detecting pinholes. The detection unit of the pinhole detection device includes a plurality of optical fibers that transmit light that has passed through the object to be inspected. The plurality of optical fibers are arranged side by side while facing a light source. When a maximum detectable angle at which the pinhole with respect to an optical axis of the light source is detectable is defined as θ, a maximum angle of incidence of light that can be transmitted by the optical fiber with respect to the optical axis of the light source is set in a range of θ+0° to θ+5°.

To provide a method for correlating on-line scanning sensor reading values to laboratory test results of sheet materials produced by continuous processes.SOLUTION: Correlating on-line scanning sensor reading values to laboratory test results for verification of accuracy and reproducibility can be facilitated by changing scanning parameters of a scanner so that it only scans a small portion of a sheet that is to be sampled; this feature makes the sensor's mini-scan reading values more relevant and more likely to be a repeatable result, thus the entire dynamic correlation process achieves more reliable results in a shorter length of time. A technique of operating a continuous sheet making system that includes actuators and a downstream scanning sensor, includes: (a) measuring a sheet physical characteristic of a continuous sheet with the scanning sensor and displaying a cross directional profile of measurements; (b) selecting a cross directional region within the profile; and (c) measuring the sheet physical characteristic with the scanning sensor within the region.SELECTED DRAWING: Figure 1

Examples include a sheet-fed printing machine including a sheet simultaneous printing unit having two collect cylinders, which are arranged on top of and in contact with one another. The machine includes a simultaneous printing inspection device and a sheet transport means that defines a section of a transport path for sheets. The section includes an inspection region of the simultaneous printing inspection device. The simultaneous printing inspection device includes a sensor device arranged to be aligned with the inspection region and the detection width of which is at least 80% of the working width. A guide device of the sensor device defines a sensor adjustment path provided for movement of the sensor device and that extends from the simultaneous inspection position to a maintenance position of the sensor device, and that extends linearly and parallel to a transverse direction at least between the simultaneous inspection position and the maintenance position.

The invention relates to a sheet-fed printing press (01), comprising a sheet-fed simultaneous printing unit (200) having two ink collecting cylinders (201; the sheet-fed printing press (01) has a working width of at least 50 cm, a simultaneous printing inspection device (31) and a sheet-fed transport mechanism (39) associated therewith, which defines a section (38) provided for a transport path (09) of the sheet-fed (02), the section (38) comprising an inspection region (37) of the simultaneous printing inspection device (31), and wherein the sheet-fed printing press (01) has a working width of at least 50 cm, the simultaneous printing inspection device (31) and a sheet-fed transport mechanism (39) associated therewith, which defines the transport path (09) of the sheet-fed (02), the sheet-fed transport mechanism (39) being provided for the transport path (09) of the sheet-fed (02). The simultaneous print inspection device (31) has a sensor device (32) arranged in the simultaneous inspection position in alignment with the inspection region (37), the inspection width of which is at least 80% of the working width, and wherein a guide device (33) of the sensor device (32) is further arranged, which guide device defines a sensor adjustment path provided for moving the sensor device (32), the sensor adjustment path extends from a simultaneous inspection position at least to a maintenance position of the sensor device (32) and extends in a straight line and parallel to the transverse direction (A) at least between the simultaneous inspection position and the maintenance position.

The present invention relates to a sheet-fed printing press (01) having a sheet-fed simultaneous printing unit (200) having two ink collection rollers (201; 202) that are in contact with each other and stacked on top of each other, wherein the sheet-fed printing press (01) has a working width of at least 50 cm, a simultaneous printing inspection device (31) and a corresponding sheet-fed conveying mechanism (39) that defines segments (38) for a conveying path (09) for the sheet (02), wherein the segments (38) include an inspection area (37) of the simultaneous printing inspection device (31). The simultaneous printing inspection device (31) has a sensor device (32) arranged in the simultaneous inspection position aligned with the inspection area (37), the detection width of the simultaneous printing inspection device being at least 80% of the working width, and a guide device (33) for the sensor device (32) is also arranged therein, the guide device defining a sensor adjustment path for moving the sensor device (32), the sensor adjustment path extending from the simultaneous inspection position to at least the maintenance position of the sensor device (32) and extending in a straight line and parallel to the lateral direction (A) at least between the simultaneous inspection position and the maintenance position.

A base weight measurement system for measuring a base weight of a sheet, the base weight measurement system comprising: a nucleon sensor; an infrared measurement device configured for independently measuring infrared light at at least two spectral regions, where for at least a first of the spectral regions, the spectrum of the measured light is limited such that when the infrared measurement device performs the measurement at the first spectral region, the spectrum of the measured light is limited to the spectrum of the measured light at the second spectral region. The spectral response of the infrared measurement equipment at the wavelength of 1.954 mu m differs from the spectral response of the infrared measurement equipment at the wavelength of 2.1 mu m by at least two times; and an analysis device, the analysis device comprising: a data input interface configured to receive data from the nuclear sensor and the infrared measurement device; and a basic weight determination module configured to determine a basic weight of the sheet by combining data obtained from the nucleon sensor and from the infrared measurement device.

A system and method for processing a dry electrode film comprising a roller system, a terahertz measurement device and a dry electrode powder mixture dispenser, are disclosed. The measurement device may comprise a terahertz source and a terahertz sensor. Such terahertz source may be emitted towards an upper and lower surface of the dry electrode film and reflected back towards the terahertz sensor to measure a physical property of the dry electrode film.

The present document discloses a method of determining thickness of a wet film, in particular of microfibrillated cellulose. The method comprises conveying said film (20) in a wet state on a conveyor (10) having a conveyor width, the wet film having a film width which is less than the conveyor width, providing a laser projection (1511) across a film edge, acquiring a series of images, each depicting an area of the conveyor, wherein the laser projection, a portion of the film and a portion of an exposed conveyor surface are visible, and using at least some of said images to determine at least one of a film thickness and a film thickness distribution across the film width. The document also discloses a method of forming a film, in particular a microfibrillated cellulose film, and a device for producing such film.

A system and method for processing a dry electrode film comprising a roller system, a terahertz measurement device and a dry electrode powder mixture dispenser, are disclosed. The measurement device may comprise a terahertz source and a terahertz sensor. Such terahertz source may be emitted towards an upper and lower surface of the dry electrode film and reflected back towards the terahertz sensor to measure a physical property of the dry electrode film.

The present invention relates to an LED matrix illumination device (20) for illuminating an illumination pattern with uniform intensity. The LED matrix illumination device includes a plurality of LEDs (22), a collimating lens (23) in front of each LED (22) for collimating the light of that LED (22), and a light-refractive element (24) in front of the collimating lens (23) configured to refract the light of at least a first portion of the plurality of LEDs (22) at a different refraction angle than the light of at least a second portion of the plurality of LEDs (22). The present invention further relates to a machine vision system, method, and computer program product.

To reduce variations in profiles in both the cross and machine directions based on the detected lateral variations in detected sheet properties.SOLUTION: Machine direction (MD) position profile measurements of moving sheets record the MD positions of each cross direction (CD) measurement. A sheet monitoring system includes: means for measuring MD speed of a material sheet; means for associating measured MD velocity with time to produce a time-related MD velocity; means for recording time-related MD velocity; a first scanning sensor for measuring first properties of a sheet material, the first scanning sensor being located at a first position along the MD and a first scanner sensor traversing back and forth along the CD; and means for associating a first property measurement value with time to produce a time-related first property measurement value. Single and multiple scanning sensors are employed.SELECTED DRAWING: Figure 2

There are provided an inspection device configured to improve the inspection accuracy in an inspection that is performed by taking advantage of spectral analysis, as well as a PTP packaging machine and a calibration method of the inspection device. An inspection device 22 comprises an illumination device 52 configured to irradiate tablets 5 with near-infrared light; and an imaging device 53 configured to disperse reflected light of the near-infrared light that is reflected from the tablets 5 and take an image of the reflected light. The inspection device 22 is configured to perform an analysis process, based on spectroscopic image data obtained by the imaging device 53. The inspection device 22 performs a predetermined arithmetic operation of standard spectroscopic image data obtained in advance by taking an image of an optical spectrum with regard to a predetermined standard plate, so as to determine a characteristic of each pixel row and thereby grasp a wavelength sensitivity characteristic of an imaging element. The inspection device 22 subsequently calculates a correction value with regard to each pixel of standard spectroscopic image data. In the process of an inspection, the inspection device 22 corrects a luminance value of each pixel of inspection spectroscopic image data obtained by taking an image of an inspection object, based on the correction value with regard to the pixel.

A high-resolution optical magnifying inspection device which uses non-collimated light beam (4) for examining small samples (2) measuring only a few mm2 is discussed. The device comprises at least one light source (1), the light source (1) being a real or a virtual light source configured to illuminate a given area of a surface of the sample (2) in at least one illumination plane non-perpendicularly with non-collimated beam (4) of light of selectable polarization state, the light source (1) having a size at least equal to the wavelength of said light, but at most one order of magnitude larger than the wavelength of the light applied. Said device further comprises at least one light receiving means (3) arranged in a light path of light reflected from said area of the sample (2) and / or of transmitted light passing through the sample in an entire thickness thereof in said area of the sample (2), the at least one light receiving means (3) is formed as a screen / position-sensitive detector system configured to detect light intensity distribution at least along a line and arranged in such a way that the light path between the sample (2) and the light receiving means (3) is free of optical elements that affect straight-line propagation of light. Here, a distance (t) between the light source (1) and the sample (2) measured along an optical axis (9) is smaller than a distance (t or t") between the sample (2) and the light receiving means (3) measured along said optical axis (9).

To provide a bending rigidity measurement device that can measure the bending rigidity of a piece of paper without processing the paper to a determined size.SOLUTION: The bending rigidity measurement device includes: an ultrasonic wave device having an oscillation unit for oscillating an ultrasonic wave to a piece of paper and an oscillation reception unit for receiving an ultrasonic wave that has passed through the paper; an electromagnetic induction device having an electromagnetic induction unit located near the paper across a space; a light emitting unit for emitting a near-infrared light to the paper; and a light reception unit for receiving the near-infrared light which has passed through the paper.SELECTED DRAWING: Figure 1

The present invention relates to a sheet printing machine (01) comprising a sheet simultan printing unit (200) having two zammel cylinders (201; 202) arranged vertically and in contact with each other, the sheet printing machine (01) having a working width of at least 50 cm, a simultan printing inspection device (31), and a sheet transport means (39) assigned to the simultan printing inspection device (31), the sheet transport means (39) defining a section (38) of a transport path (09) provided for the sheet (02), the section (38) comprising an inspection area (37) of the simultan printing inspection device (31) The present invention relates to a sheet printing machine (01) having a sensor device (32) having a detection width of at least 80% of the working width, which is positioned at the Simultan inspection position and oriented toward the inspection area (37), and a guide device (33) for the sensor device (32) is provided, which defines a sensor adjustment path provided for moving the sensor device (32), which extends from the Simultan inspection position to at least the maintenance position of the sensor device (32), and extends at least linearly between the Simultan inspection position and the maintenance position and parallel to the lateral direction (A).

The present invention relates to a machine (01) for handling a sheet (02), comprising an inspection device (08;768) for inspecting the sheet (02), and at least one sheet transport means (07;708;709;711;712;713;714), wherein the sheet transport means (07;708;709;711;712;713;714) defines a section (11) of a transport path (09) provided for the sheet (02), the section (11) comprises an inspection area (12), and the sensor device (13) of the inspection device (08;768) The machine (01) is positioned at the inspection position and oriented toward the inspection area (12), and is provided with at least one guide device (21) for the sensor device (13), the guide device (21) defining a sensor adjustment path provided for moving the sensor device (13), the sensor adjustment path extending from the inspection position to at least a first lowering position formed as a maintenance position, and the sensor adjustment path extending at least between the inspection position and the first lowering position in a direction perpendicular to the lateral direction (A).

The present invention relates to a method of determining the quantitative ratio of melamine-formaldehyde resin and urea-formaldehyde resin in at least one paper ply impregnated with a mixture of these resins, wherein the impregnation is conducted in a system for impregnation of at least one paper ply running through the system, comprising the steps of impregnating multiple paper plies with resin mixtures each with different quantitatively defined ratios of melamine-formaldehyde resin and urea-formaldehyde resin as reference samples; recording at least one NIR spectrum of each of the reference samples using at least one NIR measurement head in a wavelength range between 500 nm and 2500 nm, preferably between 700 nm and 2000 nm, especially preferably between 900 nm and 1700 nm, and particularly advantageously between 1450 nm and 1550 nm; assigning the different quantitative ratios of melamine-formaldehyde resin and urea-formaldehyde resin in the reference samples to the recorded NIR spectra of the reference samples mentioned; and creating a calibration model for the correlation between the spectral data of the NIR spectra and the corresponding quantitative ratios of melamine-formaldehyde resin and urea-formaldehyde resin of the reference samples by means of a multivariate data analysis; impregnating at least one paper ply with a resin mixture of melamine-formaldehyde resin and urea-formaldehyde resin; recording at least one NIR spectrum of the impregnated paper ply using the at least one NIR measurement head in a wavelength range between 500 nm and 2500 nm, preferably between 700 nm and 2000 nm, especially preferably between 900 nm and 1700 nm and particularly advantageously between 1450 nm and 1550 nm; and determining the quantitative ratio of melamine-formaldehyde resin and urea-formaldehyde resin in the impregnated paper ply by comparing the NIR spectrum recorded for the impregnated paper ply with the calibration model created.

A system and method for processing a dry electrode film comprising a roller system, a terahertz measurement device and a dry electrode powder mixture dispenser, are disclosed. The measurement device may comprise a terahertz source and a terahertz sensor. Such terahertz source may be emitted towards an upper and lower surface of the dry electrode film and reflected back towards the terahertz sensor to measure a physical property of the dry electrode film.

The utility model discloses inspection equipment for display panels, which comprises an air floating type conveying device and an inspection device, a plurality of conveying assemblies are arranged along a first direction, one conveying assembly comprises at least four and even number of first air floating type conveying plates, all the first air floating type conveying plates in the same group are arranged at intervals along a second direction, and the inspection device is arranged on the first air floating type conveying plates. The inspection position assembly comprises two second air floating type conveying plates and an air knife, the inspection position assembly is arranged between the two adjacent conveying assemblies, the two second air floating type conveying plates are arranged in the second direction, a gap is formed between the two second air floating type conveying plates, and the air knife is arranged on at least one side, in the first direction, of the gap; the inspection device is arranged corresponding to the inspection position assembly, the inspection device can be used for inspecting the display panel supported by the inspection position assembly, and the probability that the display panel collides with the air floating type conveying device is small in the process that the inspection equipment conveys and inspects the display panel.

A moisture sensor detects moisture in an object. A first light-emitting element emits light. A first reflecting member reflects light reflected from the object toward the object. Alight-receiving element receives light that is multiple reflected between the object and the first reflecting member. A controller determines an amount of moisture in the object based on a light reception result from the light-receiving element.

Correlating on-line scanning sensor readings to laboratory test results for the verification of accuracy and repeatability can be facilitated by changing the scanning parameters of the scanner so that it only scans a small portion of the sheet that is to be sampled. This feature makes the sensor's mini-scan readings more relevant and more likely to be a repeatable result. The entire dynamic correlation process achieves more reliable results in a shorter length of time. A technique of operating a continuous sheet making system that includes actuators and a downstream scanning sensor, includes: (a) measuring a sheet physical characteristic of the continuous sheet with the scanning sensor and displaying a cross directional profile of the measurements; (b) selecting a cross directional region within the profile; and (c) measuring the sheet physical characteristic with the scanning sensor within the region. The results from the mini-scanned are compared to laboratory analyses.

An optical sensor includes a light emitting unit configured to emit and output light, a light receiving unit configured to receive light, a substrate on which the light emitting unit and the light receiving unit are mounted, an electrically conductive pattern including a land to be electrically connected to an electrode of the light emitting unit, a resist arranged as a layer above the electrically conductive pattern or the substrate, a light shielding layer provided as a layer above the resist, and a light shielding region formed by a portion of the land and a portion of the light shielding layer overlapping in the direction of the normal of a mounting surface of the substrate, to shield stray light directed towards the substrate from the light emitting unit.