FZ-SC

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Fiber coupled spectrometers (FZ-SC) are the most commonly used optical imaging technology in machine vision applications. They are widely used in a variety of industrial, medical and scientific applications, including diagnostics in medical imaging and research in scientific instrumentation. This article provides an overview of the application field and working principle of fiber coupled spectrometers.

Application Field

Fiber coupled spectrometers have a wide range of applications field. In the medical imaging world, they are used as multi-spectral imaging devices. For example, Proteus XR (probe-based X-ray spectrometer) uses multiple spectrometers to generate high-resolution X-ray spectral and imaging data. In a similar manner, spectral imaging technology can be applied to multiple-wavelength imaging such as fluorescence imaging. Other applications include imaging of materials with low-noise imaging and retrieval of spectral information, characterizing X-ray reflectance in mineral specimens, characterizing the optical properties of materials, and studies of diffraction patterns.

In the scientific instrumentation field, fiber coupled spectrometers are used to measure the spectral reflectance of target materials. These measurements can be used to obtain information such as the chemical composition of a sample, the densities of biological tissue, or the mapping of optical properties. They can also be used to measure the electrical and optical properties of solids, surfaces, and liquids. In addition, they can be used to monitor the spectral response of materials and study the effects of light on materials and biological tissue.

In addition, fiber coupled spectrometers are used in industrial applications. They are used to characterize light reflectance properties for monitoring of critical process parameters. They can be used to monitor the spectral integrity of coatings, monitor thicknesses of paint and coatings, evaluate optical uniformity of displays, and characterize light scattering in polymers. The results obtained from these measurements can be used for product quality control, process control, and material characterization.

Working Principle

Fiber coupled spectrometers consist of a spectrometer that is integrated with a fiber optics device. The spectrometer collects and distributes incident radiation into different wavelengths or energies, which are then analyzed according to the desired application. The fiber optics device is composed of an Input Optical System, a Sampling System, and an Output Optical System.

The input optical system is used to collect radiation from a source and deliver it to the spectrometer’s entrance port. The radiation is then focused onto the entrance port by an appropriate lens system. The sampling system is used to sample the radiation. This is done by passing the radiation through a series of filters, which are arranged in a grid to form an array of optical channels. The filters are chosen such that they allow passage of radiation only at specific wavelengths. The output optical system is used to deliver the filtered radiation from the spectrometer to the sensing system.

Once the radiation is filtered and sampled, it is sent to the sensing system. This system uses data acquisition and analysis instruments to collect the data. It is then analyzed to obtain the desired results. For instance, spectral imaging can be used to obtain multiple-wavelength images of fluorescent, absorbent, or reflective specimens. Similarly, spectral reflectance measurements can be used to determine the chemical composition of a material or the optical properties of surfaces.

Fiber coupled spectrometers are widely used due to their versatility, accuracy, and ease of use. They allow for the assessment of both physical and spectral properties in a single operation. Additionally, the data acquisition and analysis processes are straightforward and highly reproducible. As a result, these spectrometers have seen extensive adoption in the industrial, medical, and scientific sectors.

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