New development in microweight determination by free magnetic suspension |
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| Institution: | 1. MEMS Center, Harbin Institution of Technology, Harbin, 150001, China;2. Key Laboratory of Micro-Systems and Micro-Structures Manufacturing, Ministry of Education, Harbin, 150001, China;3. School of Software, Harbin University of Science and Technology, Harbin, 150001, China;1. Physikalisch-Technische-Bundesanstalt, Braunschweig und Berlin, Bundesallee 100, 38116, Braunschweig, Germany;2. Technische Universität Braunschweig, Institute of Production Metrology, Schleinitzstraße 20, 38106, Braunschweig, Germany |
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| Abstract: | Improvements in the field of weighing with free magnetic suspension are reported. They concern the ratio of load capacity to deadload of a magnetic coupling, the accuracy of eddy current sensors, the elimination of undesired feedback from the control current of the magnetic coupling to a microbalance, adaptive control for the magnetic suspension and direct magnetic weighing without an additional balance. |
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