The development of science and technology in China's instrument network instrumentation has promoted the progress of spectroscopy. New spectrometers have been introduced in the field of spectroscopy at home and abroad in recent days, providing technical support for food safety and environmental protection.
American scientists invent new electromagnetically induced transparent spectrometer
Recently, the National Institute of Standards and Technology (NIST) announced that its scientists invented a new electromagnetically-induced transparent (EIT) spectrometer. The spectrometer can measure the characteristics of a single photon source with high accuracy, making the future communication network less vulnerable to hacking.
For possible. At the same time, the spectrometer can integrate other processes and extend the performance of the new EIT spectrometer to any other wavelength range without affecting spectral resolution, high wavelength accuracy, and high detection sensitivity, providing a reliable tool for constructing effective quantum repeaters at night.
China's successful development of a new X-ray fluorescence spectrometer broken rely on import patterns
On January 10, Beijing Anke Huisheng Technology Co., Ltd. was released to the public. After three years of scientific research by the company's scientific and technical personnel, the self-developed and successful new type of X-ray fluorescence spectrometer PHECDA-MINI will become a rapid screening for pollutants in contaminated sites. And key breakthroughs in pollution accident emergency monitoring. Not only does it significantly reduce the workload, but it also reduces monitoring costs. The successful development of this technology has expanded the application of X-ray fluorescence to food safety, environmental protection and other industries, changed the traditional analysis methods, and improved laboratory analysis capabilities.
U.S. researchers develop compact spectrometer for planetary exploration
The December 21, 2017 news from Hampton, Virginia, USA stated that a compact spectroscopy instrument for planetary exploration has been developed. The system is known as the Positioning Ultra Small Subminiature Raman (SUCR) instrument and is capable of detecting and characterizing minerals, organics, and biological materials within a few centimeters (2-20 cm) at 10 micron resolution. The active remote sensing system consists of a 532 nm laser and a miniature spectrometer. The future can be used for biomedical, food analysis, and other applications that can benefit from rapid chemical analysis without sending the sample to the lab.
Broadband cavity-enhanced spectrometer aids atmospheric glyoxal for on-line measurement
Atmospheric glyoxal is an important intermediate component in the degradation process of reactive organics. It is the key to the study of organic degradation mechanism and its influence on the generation of O3 and fine particles. Fang Bo and Zhao Weixiong from the Anguang Institute of Chinese Academy of Sciences have developed a portable high-sensitivity wideband cavity-enhanced spectrometer that works in the 440-480 nm band to achieve on-line measurement of atmospheric CHOCHO. The instrument improves the traditional broadband cavity enhancement technology in two aspects of optical structure and back-end data processing: the standard cage structure design and the SMA fiber connector collimator improve the optical cavity coupling efficiency, compact structure, and good stability With adaptive Kalman filter technology, the accuracy of CHOCHO measurement can reach 8pptv in 21s sampling time, reaching the international advanced level.
With the advancement of China's spectroscopic technology, the support of national policies, and the demand of the market, in the future, China will have more advanced world-leading spectroscopic products developed to support food safety and environmental protection.
(Source: Ministry of Science and Technology, Science and Technology Daily, China Optical Journal Network, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences)
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The material used partly determines the extent of thermal conductivity. Copper and aluminum are the most widely used materials, though aluminum is the more common choice because copper is more expensive and heavier. Aluminum 6061 and 6063 are widely used with a thermal resistance of 166 and 201 W / mK, respectively.
