Solution Category

Spectral detection

Electromagnetic radiation interacts with matter to cause light absorption, reflection, and scattering, and to conduct matter analysis by studying the laws of these phenomena is called spectroscopic analysis. In spectral detection, measuring the transmission and reflection of a sample are the two most commonly used modes. To achieve these two modes of spectral detection, components such as a spectrometer, light source, optical fiber, measurement bracket, standard reference sample, and measurement software are usually required.
A spectrometer is a scientific instrument that breaks light with complex composition into spectral lines. The measurement range generally includes the visible light region with a wavelength range of 380-780 nm and the ultraviolet light region with a wavelength range of 200-380 nm. Figure 1 shows a spectrum analyzer, and the measurement results obtained by testing the sample can be obtained from the spectrum analysis software in the computer. Since different light sources have their own unique emission spectra, different illuminants can be used as the light source of the instrument.

Figure 1 Spectrum Analyzer

Almost all industries have demands for spectrum detection, such as electronic appliances, chemical industry, mechanical processing, glass, etc. To detect the transmittance and reflectance of products, the detection accuracy of good quality spectrometer can reach 0.001ppm. At present, the spectrometers on the market are mainly divided into imported and domestic ones. In the existing technology, the quality of the domestic spectrometer is not much different from the imported one, and the price is more dominant, and the after-sales is more convenient. In some special fields, it is even more advanced than the imported technology.
HiPA builds various common spectrum detection systems by using the spectrum detection equipment with the spectrometer as the core. A spectrum detection system usually includes: spectrometer, light source, optical fiber, sample holder and software. Shown in Figure 2 is a typical transmission spectrum detection system. Since each component of the spectrum has its spectral range, it is necessary to select the appropriate spectral range according to the actual needs of users.

Figure 2 Diagram of sample transmittance detection device

Among HiPA’s existing laser intelligent equipment products, a part is intelligent spectrum detection equipment. Through the measured transmittance, you can know the light sensitivity of the sample, and you can also calculate the visual color from the measured reflectance to determine whether it is consistent with the sensory color of the human eye. HIPA will expand to the field of high-precision spectrum detection with leading technology, high-performance products and high-quality services.