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The development of instrumentation is extremely rapid, and its credit is inseparable from the ozone aging test chamber. The main trends in the development of international instrumentation in the past 10 years are:
The emergence of digital technology has improved the accuracy, resolution and measurement speed of analog instruments by several orders of magnitude, laying a good foundation for the realization of test automation. The introduction of the computer has caused a qualitative change in the function of the instrument, from the measurement of individual parameters to the measurement of the characteristic parameters of the entire system, from the simple acceptance and display to the control, analysis, processing, calculation and display output, from the use of a single The measurement carried out by the instrument is changed to the measurement by the measurement system. The further penetration of computer technology in instrumentation has made electronic instruments appear in the data domain test outside the traditional time domain and frequency domain. In the 1990s, the breakthrough in the development of instrumentation and measurement science and technology was the improvement of the intelligence of instrumentation; the large number of DSP chips came out, which greatly enhanced the digital signal processing function of instrumentation; the development of microcomputers made instrumentation with stronger data Processing power and image processing functions.
Fieldbus technology is a network communication technology for various field automation devices and their control systems that has been rapidly developed in the 1990s. Internet and Internet technology will also enter the field of control. Modern instrumentation products will develop in the direction of computerization, networking, intelligence, and multi-function. Interdisciplinary comprehensive design and sophisticated manufacturing technology make it faster, more sensitive, more reliable, and easier to obtain Comprehensive information of the objects to be analyzed, detected and controlled. In the next 10 years, a higher degree of intelligence should include a series of functions such as understanding, reasoning, judgment, and analysis. It is the result of the combined analysis of numerical values, logic, and knowledge. The hallmark of intelligence is the expression and application of knowledge. Utilize the new effects of physics and high-tech and its achievements to develop new high-sensitivity, high-stability, strong anti-jamming sensor technology and test instruments. Such as: the use of high-temperature superconducting quantum interferometer (SGUID) to develop measurement test instruments, physics test instruments, geography and geology instruments, chemical analysis instruments, medical instruments, non-destructive materials testing instruments, etc. The use of ellipsometry to detect optical fibers, optical glass, etc., combined with near-field optics, can not only measure the fine structure of the surface, but also distinguish the material of the measured object according to the polarization information of the near-field optical reflection. This is a new experimental research. explore. Using tunable frequency-stabilized laser spectrometer technology for the measurement of high-precision geometric and mechanical quantities and a variety of non-morphological quantities, a new generation of miniature fiber-conducting laser interferometers has been developed, which can measure from nanometers to several meters or more Large range, resolution up to 10mm. From the above, the development of instrumentation has a close relationship with the ozone aging test chamber.
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