Based on the transparent box model given in ISO/TS 14253-2, the calculation equation of the uncertainty in cylindricity CMM measurement is deduced. And the decision rule based on the compliance uncertainty is adopted to decide whether the cylinder can be accepted or not. The experimental result ...
常见的系统误差有:zero error when using a voltmeter or a balance, parallax error when using a measuringcylinder, effect of air resistance等等。 减小系统误差的方法可以是:check zero error before measuring, make sure eye-sight is parallel to the lowest point on the surface of liquid. 举个栗子:(...
In the first one, the outer cylinder is at rest, while the inner one spins. Two linearly unstable modes are identified. The primary mode is real and represents the axisymmetric Taylor vortices. The second mode is complex and consists of spiral vortices. For the counter-rotating cylinders, the...
Hydrodynamic lubrication is an ideal state of lubrication in that friction and wear hardly occur. The friction pair of piston ring-cylinder liner is one of... Y Liu,Q Luo,S Zhang,... - World Conference on Mechanical Engineering & Intelligent Manufacturing 被引量: 0发表: 2020年 Practical hin...
To estimate the potential of SCLAS for measuring different quantities under various conditions a detailed uncertainty estimation regarding noise, uncertainty in wavenumber axis and uncertainty in the instrument function is given. Methods For the processing of broadband absorption spectroscopic measurements ...
(this number is the least precise one) and will determine the overall number of significant figures. In some cases, you may to have to express the number in scientific notation in order to express the number to the least precise measurement. For example: 24.696 + 1.17 = Practice: 15 + ...
UNCERTAINTYOFMEASUREMENTRESULTSINFUELANALYSES 系统标签: measurementuncertaintyresultsanalysesfuelmetrology 38 E n g e n h a r ia T é r m ic a , E d iç ã o E s p e c ia l, 2002, p . 38- 43 T E C N O L O G IA /T E C H N O L O G Y I NTRODUCTI ON With ...
In turn, the measurement uncertainty estimation should take into account the analysis of the occurrence of oscillations, arising from drifts of imperfect components, that may exceed the permissible errors of the measuring transducer. 展开 会议名称: Conference on Non-integer Order Calculus and Its ...
Discussions with gas cylinder producers confirmed that this uncertainty is < 1.5%. Based on the previous values, the analysers' uncertainty was estimated to be around 5%. The data that were received in 2017 confirm this value. For example, JAMA compared PEMS with laboratory-grade equipment (...
CYLINDER (Shapes)UNCERTAINTYBISMUTH tellurideAbstractThe effect of the geometric shape of the samples on the uncertainty in measurements of the thermal conductivity coefficient of materials by the laser-flash method is investigated. A mathematical model simulating the process of measuring the thermal ...