解析 Let r be the radius of the sphere and Ar be the error in measuring the radius.Then,r=9 m and △r=0.03mNow,the surface area of the sphere (S)is given by,S=4nr²∴Hence,the approximate error in calculating the surface area is 2.16n m². ...
In the method, adjustment error-containing wave surface data is obtained by an interferometer, the curvature radius and the caliber of a spherical surface to be measured are measured, and then data obtained by measurement serves as auxiliary data for eliminating the adjustment error, wherein the ...
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a. The standard defines the attribute chart:error-upper-indicatorThis attribute is supported in Microsoft Excel 2013 and later. Excel uses this attribute for the element of the <chart:plot-area> and <chart:series> elements when the chart is not three dimensional and the series type is...
transformation to search for the optimal solution based on the line which perpendicular to the tangent plane of sphere,through sphere surface mesh successive narrowoptimization range; the projection of tangent plane of sphere could provide a reference for determining straightness errors in any direction....
In this paper, a compensation method for correcting the residual form error due to tool de-centring in the ultra-precision machining of aspheric surfaces is discussed. The method makes use of the form measurement data from a Form Talysurf system to modify the NC machine code generated by a to...
The discrimination and measurement of the correlation degree of ray-wave geometric beams can be realized by mode projective measurement. The hologram for producing the input beams is loaded into DMD #1, then we load a series of the corresponding conjugated holographic mask into DMD #2 sequentially...
After measurement, the workpiece is repeatedly clamped on the machine tool. OLM requires high-precision zero-point positioning equipment to be installed on the machine tool, so the machining accuracy is too dependent on the zero-point positioning equipment [11]. OMM is the measurement of the ...
A method for adjusting at least one alignment control axis of a holographic data storage system or device to or towards a sufficiently optimal recovery position for recovery of a ho
[ ] > Transform firebase-measurement-connector.aar (com.google.firebase:firebase-measurement-connector:17.0.1) with ExtractAarTransform [ ] > Transform play-services-stats.aar (com.google.android.gms:play-services-stats:16.0.1) with JetifyTransform [ ] > Transform play-services-ads-identifier....