Investigation of a small force standard with the mass based method

Abstract

Investigation of a small force standard with the mass based method, Acta

Performance test of cantilever transfer standard used for afm tip calibration based on electromagnetic compensation

“…The other aspect regarding to uncertainty are originated from force and displacement measurements, non-linearity of calibration curves, orientation of the cantilevers, location accuracy of the measurement point and the stiffness of the measurement chain. The uncertainty due to the force measurement is estimated in [12]. The uncertainty originated from force 2 is attributed to the uncertainty at the lower limit of the force.…”

“…So 5 is calculated to be 1.28 × 10 -3 , where = 3.3 μm, = 1000 μm. The stiffness of the measurement chain b was determined to be 1099.1 N/m [12]. Assuming a rectangular distribution, the relative standard uncertainty due to the stiffness of measurement chain 6 is given by:…”

“…Difference between designed and the measured value of the stiffness (Top: Fitted analysis of the stiffness, Bottom: Deviation from the designed stiffness)3. UNCERTAINTY ANALYSISThe uncertainty analysis for the different type of the cantilevers was presented in references[12] and…”

Development of a novel microforce-generating machine based on a force generation method using electromagnetic force

“…Microforce measurements in the millinewton and micronewton range have been applied in many industrial, research, and development fields, such as in the evaluation of the mechanical properties of a material using atomic force microscopy and a nanoindenter. Therefore, to establish microforce traceability to ensure the reliability of these measurements, several national metrology institutes (NMIs) have developed microforce comparators [1][2][3] and a tabletop-sized Kibble balance [4,5]. The National Metrology Institute of Japan (NMIJ) * Author to whom any correspondence should be addressed.…”

New microforce generating machine using electromagnetic force

“…Microforce measurements in the micronewton and millinewton range have been applied in many industries and research fields, and the reliability of these measurements becomes essential, for example, for the evaluation of material mechanical property using an atomic force microscope (AFM). Therefore, several national metrology institutes (NMIs) have developed various facilities, including microforce comparators that use the principle of the electromagnetic balance, to establish the traceability of microforce [1][2][3]. The National Metrology Institute of Japan (NMIJ), National Institute of Advanced Industrial Science and Technology (AIST), has developed a 2 N deadweight type force standard machine that uses gravity force and can extend the Japanese force standard down to 10 mN [4].…”