Analysis of China's Inspection Industry Technology Environment
The new development of quality inspection and detection technology, detection technology is an important part of the science and technology field, it can be said that every step of the development of science and technology can not be separated from the cooperation of detection technology, especially the detection technology under extreme conditions, has become an important means to deepen the understanding of nature . In recent decades, with the rapid development of electronic technology, the measurement of various weak physical quantities (such as weak light, weak current, weak magnetic field, weak sound, small displacement, micro temperature difference, micro conductivity, micro vibration, etc.) has made considerable progress. The detection method is mainly through the use of various sensors for power conversion, which is the conversion of the measurement object into electricity. The basic methods are: coherent measurement method, time domain average method of repeated signals, statistical average method of discrete signals, and computer processing method, etc. However, due to the fluctuation of the weak signal itself, the sensor itself and the noise of the measuring instrument, the sensitivity and accuracy of the detection are greatly limited. In recent years, scientists from various countries have conducted a large number of extensive and in-depth studies on photoacoustic photothermal technology. People can analyze and study the properties of matter, heat, sound, light, and magnetism by detecting sound waves and thermal effects. And this detection is suitable for almost all types of specimens, and even for subsurface non-destructive testing and imaging of specimens. Several kinds of photothermal detection technologies have also been derived (such as photothermal deflection, photothermal displacement, thermal transmission, photoacoustic Raman spectroscopy, and pyroelectrical spectroscopy). These methods have successfully solved problems that were difficult to solve in the past with traditional methods, and are therefore widely used in various fields such as physics, chemistry, biology, medicine, chemical engineering, environmental protection, and materials science, and have become very important detection and analysis methods in scientific research. Especially in recent years, with the continuous development of photoacoustic thermal detection technology, the meaning of the photoacoustic thermal effect has been continuously expanded, and the light source has also been extended from the traditional optical wave, electromagnetic wave, X-ray, microwave, etc. to electron beam, ion beam, and synchronization. Radiation, etc., the detector has also been extended from the original microphone to piezoelectric sensors, pyroelectric detectors and light sensors, etc., to adapt to the actual needs of different applications.Photoacoustic photothermal detection technology classification1. Microphone photoacoustic detection technology, which is currently the most widely used photoacoustic detection system, which is suitable for the detection of various morphological properties of solids, liquids, gases, powders, and colloids. Its characteristics are relatively complete in theory. , easy to achieve quantitative detection.2. The technology of light deflection and optical displacement detection can detect the sample in a very harsh environment with high sensitivity.3, piezoelectric and pyroelectric detection technology, piezoelectric sensors must be based on the detection of solids, liquids, powders of different requirements, select the appropriate high sensitivity, good shielding, anti-interference ability, matching the acoustic impedance of the sensor; heat The pyroelectricity detection uses the pyroelectric effect of certain materials to make the detector detect the pyroelectric signal.4, weak signal detection technology, because some useful signals are often more than their own thousands or even hundreds of thousands of times the noise submerged, so must use the necessary means to extract the signal from the noise. The analog weak signal detection devices commonly used in photoacoustic detection are phase-locked analyzers and Boxcar integrators.Application of Photoacoustic Photothermal Detection Technology1. Quantitative analysis of solid and liquid materials 2. Gas analysis 3. Surface and interface research 4. Application of biopharmaceuticals Rigorous and scientific research methods can ensure the accuracy and quality of research reports.The main research methods used in the "2014-2019 Test Equipment Industry Development Prospects and Investment Strategic Planning Analysis Report" are as follows: 1) Census: We interviewed or interviewed nearly 100 practitioners in the testing industry to obtain the best hand. data. 2) Follow-up research: In order to ensure real-time detection of the detection industry, we have established a tracking research mechanism in this inspection industry, and obtained the development trend of the inspection industry every month through visits. 3) Government agency data: We inquired about the industrial and commercial archives of the key enterprises in the inspection industry, the statistics bureau files, the customs import and export data, etc., and gained more authoritative information. 4) SOWT analysis: Using SWOT analysis, Porter's five-force analysis and other methods, we analyzed the advantages and disadvantages of the detection industry and companies, as well as potential threats and development opportunities. 5) Scientific prediction: We use regression analysis, time series analysis, factor analysis, and combination analysis to make a full prediction of the development trend of detection.