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Measurement of the length to a new level

Wavelength based \m \Figuratively speaking, if the high stability of the laser wavelength as a ruler to measure the distance between the Earth to the Moon, measurement error will be smaller than the diameter of a human hair. Measurement Control and Instrumentation Engineer qualification of the formal launch of the approval by the China Association for Science and Technology, China Instrument Society officially launched in 2005 measurement and control and instrument qualification of 212 engineers. Carried out by the intermediary of academic professional certification organizations is to adapt the system of 212 engineers reform and the transfer of government functions, as well as certification from the domestic to the international mutual recognition of changes in personnel work is a major event, also in line with international practice, has far-reaching The significance and impact. In order to successfully carry out this work, China Instrument Society delegation of authority in the country 15 famous universities such as Tsinghua University to establish a training test center, declared in mid-June accreditation application. For detailed information on qualified engineers, see the China Instrument Society Web site, network t11:: www-ClS ・ org ・ Cn accurate measurement of ground temperature fiber optic sensor technology problems, according to the World *** \Professor of optical fiber sensor technology to develop fiber optic sensing products,[link widoczny dla zalogowanych], a distance of 20 meters can accurately measure the temperature of the target area, you can accurately measure the dryness of thousands of meters deep wells. His invention of optical fiber sensing technology latest thermometer, to achieve a high precision, high response, can contact, but also non-contact measurement. Accurately measure the temperature inside the test range, and has nothing to do with the material emissivity, minimum test spot up to 300 ~ m. So as to solve the non-ferrous metallurgy, powder metallurgy, in the sense of high-frequency heating, iron and steel, foundry, power, ceramics, welding and heat treatment under a variety of industrial and harsh environment of temperature detection. World oil exploitation to post there too thick of oil extraction difficult problem is to use existing technology to the underground gas injection are resolved. However, dryness of the different wells, the amount of gas injection is also different, even the slightest error will cause the oil waste and other issues. This problem in the world, there is no other better way. Chen Yao, a 2101 Health OI invention inspiratory gas injection profile logging instrument and a 3101 OI ground vapor quality testing system that can accurately measure the degree of underground stem. Price Computing Scale III to not \13, the sampling results announced in Shanghai, Jiangsu, Zhejiang, Guangdong, Liaoning, Anhui,[link widoczny dla zalogowanych], Fujian, Shandong, Shanxi and other provinces and cities in 41 9 of 41 production testing of the samples, the sample pass rate of 68.3. Product Quality Supervision General Administration of Quality Supervision, Inspection Division, said Ji Zhengkun, The sampling results show that the price computing scale leading enterprise in the measurement of product quality requirements, technical performance and functionality has reached the level of similar foreign products,[link widoczny dla zalogowanych], the best manufacturers have to meet international advanced level. Large companies products are all qualified, some products there are certain problems of small and medium enterprises. The main quality checks are three issues. One temperature test failed. China's vast territory, large temperature difference between north and south, so the national standard, price computing scale in a variety of temperature conditions, must be able to make the normal 212. Second, the room temperature performance failed. Room temperature performance is the basic price computing scale performance,[link widoczny dla zalogowanych], including weighing the test, weight partial load testing, discernment, and repeatability, and creep back to zero, tilt, in addition to skin,[link widoczny dla zalogowanych], warm-up time and other projects. Third, anti-burst, anti-static discharge and electromagnetic radiation failed. Future quality control testing data to the public sector to lead a measured assessment related news from the national commission, all future data to the social issue of product quality inspection agency just to be measured by the provincial administrative departments of more than passing the examination, by the issuing authorities published the list of certified laboratories and by measuring the detection range for each laboratory. It is understood that in 2004, examined and approved by CNCA national metrology laboratories certified 480 companies (including the National Quality Supervision and Inspection Center.) CNCA will be \list. Certified laboratory by measuring the specific detection range, based on standards for the measurement of its certificate and obtained the certificate Schedule shall prevail. (The above information is taken from \
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