Abstract:
An imaging system with an imaging mechanism which includes polarization analyzers, which may be crossed polarization analyzers, positioned to provide birefringence images of particles in the fluid passing through the flow chamber. Captured images are of high resolution and may be used in comparison to known images of a library of images. The system and related method enhance the accuracy and sensitivity of particle monitoring by utilizing birefringence imaging combined with particle analysis and the detection of each particle's characteristic features, such as crystalline features. The system includes a scatter detector used to trigger backlighting of the flow chamber and capture images of particles therein.
Abstract:
An isothermal reaction and analysis system may include a receiver to receive sample holders, a thermal control subsystem to control a temperature of the receiver, an excitation subsystem, a detection subsystem and an analysis subsystem. Excitation sources and/or detectors are positioned to enhance data collection. Sample holders may include filters, selectively blocking and passing wavelengths or bands of electromagnetic radiation.
Abstract:
In a machine vision inspection system and a light source module, the light source module includes a semi-cylindrical lampshade and linear LED light sources for provide light beams. The luminance is determined by a number of rows of the linear LED light sources, a length of each linear LED light source and cooperation of colors, wavelengths or sizes of the LEDs. The linear LED light sources are located or assembled to an interior of a curved surface of the semi-cylindrical lampshade, and arranged from a first curved-surface edge to a second curved-surface edge of the curved interior by a preset interval and a relative included angle. An arranging direction of the linear LED light sources is same to an extending direction of the interior of the curved interior. The shadow caused by illuminating from one single side may be eliminated. The present invention possesses the advantage of low cost.
Abstract:
A device (10) is provided for measuring at least one characteristic (12) related to presence of particles. The device (10) includes a light source unit (16) for emitting light into a region (18) containing particles (20), with the light source being configured to emit light from a plurality of locations in a manner so that the emitted light follows a desired intensity distribution (22), the desired intensity distribution (22) being desired for the measurement of the at least one characteristic (12). In preferred embodiments the intensity distribution is Lambertian.
Abstract:
An impurity measuring device includes a table (T) on which a sample (S) is to be placed with its fracture surface (h) facing up, an illuminating means (7) for irradiating the fracture surface (h) with light (L) from a plurality of directions, an image sensing means for sensing an image of the fracture surface (h) irradiated with the light (L), continuous tone color image processing means for processing the sensed image into a continuous tone color image, and a binarizing means for binarizing the continuous tone color image through comparison between the result of the continuous tone color image processing and a threshold value. As the fracture surface (h) is irradiated with the light (L) from the plurality of directions, the image obtained by sensing the image of the fracture surface (h) is free from shading or optical irregularities caused by minute irregularities on the fracture surface (h). Therefore, impurities in the sample (S) can be accurately detected from the fracture surface (h) by subjecting the image to the continuous tone color image processing and binarization.
Abstract:
An NIR spectroscopy fluid analyzing system using a series of LED's, each having its own preselected center wavelength, as illumination sources. These wavelengths have overlapping spectral widths, such that the measurement covers a broad spectrum. The LED's illuminate the fluid sample sequentially, and subsequently the transmission absorbance through the sample and the reflectance or scattering from the sample is measured for the wavelength range of each LED. The measurements are performed using photodetectors. The concentrations of component parts of the fluid are expressed in the form of a polynomial, which is a function of the measured transmitted and/or reflected intensities, and of empirical coefficients, which are extracted by prior statistical analysis on measured intensities obtained from a large number of test samples having known concentrations of the component. A novel sample chamber, capable of performing optical absorption measurements on a flowing sample of fluid, is described.
Abstract:
An NIR spectroscopy fluid analyzing system, using a series of LED's, each having its own preselected center wavelength, as illumination sources. These wavelengths have overlapping spectral widths, such that the measurement covers a broad spectrum. The LED's illuminate the fluid sample sequentially, and the transmission absorbence through the sample, and the reflectance or scattering from the sample is measured for the wavelength range of each LED. The measurements are performed using photodetectors. The concentrations of component parts of the fluid are expressed in the form of a polynomial, which is a function of the measured transmitted and/or reflected intensities, and of empirical coefficients, which are extracted by prior statistical analysis on measured intensities obtained from a large number of test samples having known concentrations of the component. A novel sample chamber, capable of performing optical absorption measurements on a flowing sample of fluid is described.
Abstract:
An apparatus for inspecting wires bonded between the pads of a semiconductor chip and the leads of a lead frame including: an illuminating assembly that emits lights, via LED's that are arranged in a ring-shape, onto the object of inspection such as the ball at the end of a bonded wire; an optical assembly that images the object of inspection which is illuminated by the illumination assembly, and cameras that photograph the image taken in by the optical assembly. When the ball, particularly its shape, is inspected, a dark field illumination circumstance is created by the illuminating assembly so that only the ball can appear bright. In this case, a diaphragm of the optical assembly is also adjusted so as to create a shallow focal depth for the ball.
Abstract:
An engineered lighting system for use in an inspection system is comprised of an array of light emitting diodes. A specimen is brought into the viewing area, and a current pulse is provided to the diodes of the array to selectively flash all or a portion of the diodes of the array. Reflected light from the specimen is sensed and a digitized image is generated therefrom. An illumination level of the digitized image is adjustable, in whole or in part, by varying the effective lighting intensity of one or more of the diodes of the array during a flash period. The digitized image of the specimen is compared to data indicative of acceptability of the specimen, and acceptance or rejection of the specimen is decided on a basis of a comparison therebetween.
Abstract:
본 발명은 탁도 계측 시스템을 용수 저장탱크 외부 일측에 설치하여 탁도 계측값이 설정값 이하이면 탁도 계측한 용수를 다시 용수 저장탱크로 회수함으로써 대량의 용수가 낭비되는 것을 방지할 수 있도록 하고, 탁도 계측이 필요한 경우에는 언제든지 원격지에서도 실시할 수 있게 하며, 용수 저장탱크에서 오염수가 외부로 공급되지 않도록 한 탁도 계측 시스템이 채용된 용수 저장탱크에 관한 것이다. 본 발명은 내부에 용수가 저장되는 저장공간이 구비된 용수 저장탱크의 외부 일측에 상기 저장공간과 연결된 탁도 계측 시스템이 설치되되, 상기 탁도 계측 시스템은, 탁도 계측탱크에 용수가 공급되는 공급관과 펌핑장치와, 탁도 계측장치와, 탁도 계측을 제어하는 컨트롤러가 설치되며, 탁도 계측값에 따라 탁도 계측탱크의 용수가 회수 또는 퇴수되도록 회수관과 퇴수관이 설치되며, 상기 컨트롤러는 탁도 데이터를 무선으로 탁도 관리서버와 관리자 스마트폰으로 전송하며, 상기 관리자 스마트폰에서 상기 컨트롤러에 제어신호를 전송하여 탁도 계측이 이루어지도록 하는 탁도 계측 시스템이 채용된 용수 저장탱크를 제공한다.