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Comparison of standard on this instrument can on the deal. Its minimum relative error can reach 2 × 10_. . 5O can be based on the standard 10kg, 10kg and therefore the standard must also be E-class or move it a good measure of uncertainty. To do this, so another load may have the most to 10kg, and can be resolved to the O. 1mg, if desired, can be resolved to the O. 01mg automatic sulfur content comparator system. Throwing more on this instrument system, a pair of high-precision lkg quality standards-based complete all procedures, the lkg quality standards can be distinguished from the male one to compare the quality of 1g automatic lkg measured. Automatic systems Automatic systems need to implement traceability chain from 50kgNlkg compare the quality of the main reasons are: first,[link widoczny dla zalogowanych], with the air density is proportional to the target object with the air buoyancy of the moment changes in air density, air density and thus 9 will cause small changes in force on the load cell table considerable influence. This is why the temperature and air pressure, the standard deviation would be small changes have a big impact. Second, if the fixed environment of zero drift caused by buoyancy, then, and as long as the quality of the comparison process to the next measurement from a measurement of the elapsed time is uniform, then,[link widoczny dla zalogowanych], Si double substitution can compensate for such drift effects. System is fully automatic quality comparator pool of well satisfy this condition. Chu compare the accuracy of the quality characteristics of Ni weighing unit is in accordance with the principle of electromagnetic force compensation work. This means that the impact of small changes in gravity load cell weighing unit will leverage the system by the corresponding system led to an electromagnetic force, for example, from a quality standard to another as the quality standards being tested. In order to maintain the balance of the entire system,[link widoczny dla zalogowanych], which will change in reaction force to achieve power compensation. Because the reaction is due to changes in current through the solenoid coil due to change,[link widoczny dla zalogowanych], so can the \? You need an advanced technology from the Centre to ensure that the force into the A load cell without any axis parallel to the side of the force, which is the chassis frame through the center to achieve. Generally support the center as the spherical pendulum chassis, as given reaction,[link widoczny dla zalogowanych], but instead of hanging coats bearing plate is located below the stent. To avoid the influence of the central support swing requires special damping devices. This proprietary technology solutions to the range and quality ratings are closely related. * For the design of high accuracy mass comparator with a good load switching technology is the basic characteristics of the third system. This is because the transition from one object to another object must be smooth, uniform manner. Ho Shao-Wei Quoted <<OIMLBULLETIN)) Vo1. V, the book, the ancient island of good stroke j}, No Man 8PJ5 called Bo ¨ Jo \ NIsT Manufacturing Engineering Institute of the measurement of Qian, 67, a NIST scientific and technical personnel are developing automated intelligent enough processing system from the kinds of tools, these systems will soon a world-class processing center. Components include intelligent machines for real-time online measurement of advanced sensors, precision machine tool control software and comprehensive product design, production, sales, use of all elements of information technology. NIST Manufacturing Engineering Institute for industrial groups to provide technical assistance off, developed measurement standards, measurement techniques, hardware, software and data interfaces. Create problems in various fields of specialized national institutions - the Institute also subject to automatic processing of the leadership of the Institute of Manufacturing Engineering, the Institute researchers also engaged in the processing of nano-scale research work for future development of the atomic-level production technology 4 the amount of barium tool. The following measures were introduced on the Institute's work. 1. Atomic-level measuring machine to 2001, integrated circuits and optical instruments on the surface roughness, line width, line depth measurement needs such as the size of 0. inm ~ 1nm uncertainty. Moreover, from a few square millimeters to a square meter range are required to have such uncertainty. In order to meet these needs refinement, NIST is developing the Molecular Measuring Machine (m). na. To 25cm in the regions in atomic-scale precision positioning and measurement. It will insert a specialized scanning tunneling microscope system, the system consists of a core structure is very hard slide mobile probe, measuring probe and the location of the interference device samples isolated from vibration and acoustic disturbances and the two devices. nl. Once completed, will be characterized as a high-order silicon atoms arranged on the surface displacement, geometry and deformation methods. m. Development of nano-scale can also be used as mechanical and electrical structure of the detection tools. 10

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