Error generation in bubble propagation

1975 ◽  
Author(s):  
H. B. Callen ◽  
W. D. Doyle ◽  
J. Seitchik
Keyword(s):  
Error Generation

Research on the printing error of tilted vertical beams in delta-robot 3D printers

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yuezong Wang ◽  
Jinghui Liu ◽  
Mengfei Guo ◽  
LiuQIan Wang
Keyword(s):  
3D Printing ◽  
Kinematic Model ◽  
Three Dimensional ◽  
3D Printer ◽  
Simulation Approach ◽  
Content Type ◽  
Printing Quality ◽  
Delta Robot ◽  
Error Generation ◽  
Error Simulation

Purpose A three-dimensional (3D) printing error simulation approach is proposed to analyze the influence of tilted vertical beams on the 3D printing accuracy. The purpose of this study is to analyze the influence of such errors on printing accuracy and printing quality for delta-robot 3D printer. Design/methodology/approach First, the kinematic model of a delta-robot 3D printer with an ideal geometric structure is proposed by using vector analysis. Then, the normal kinematic model of a nonideal delta-robot 3D robot with tilted vertical beams is derived based on the above ideal kinematic model. Finally, a 3D printing error simulation approach is proposed to analyze the influence of tilted vertical beams on the 3D printing accuracy. Findings The results show that tilted vertical beams can indeed cause 3D printing errors and further influence the 3D printing quality of the final products and that the 3D printing errors of tilted vertical beams are related to the rotation angles of the tilted vertical beams. The larger the rotation angles of the tilted vertical beams are, the greater the geometric deformations of the printed structures. Originality/value Three vertical beams and six horizontal beams constitute the supporting parts of the frame of a delta-robot 3D printer. In this paper, the orientations of tilted vertical beams are shown to have a significant influence on 3D printing accuracy. However, the effect of tilted vertical beams on 3D printing accuracy is difficult to capture by instruments. To reveal the 3D printing error mechanisms under the condition of tilted vertical beams, the error generation mechanism and the quantitative influence of tilted vertical beams on 3D printing accuracy are studied by simulating the parallel motion mechanism of a delta-robot 3D printer with tilted vertical beams.

scholarly journals Error generation and propagation in Majorana-based topological qubits

2019 ◽  
Vol 100 (13) ◽  
Author(s):  
A. Conlon ◽  
D. Pellegrino ◽  
J. K. Slingerland ◽  
S. Dooley ◽  
G. Kells
Keyword(s):  
Error Generation

The Design and Implementation of Three-Phase SPWM Based on DSP

2011 ◽  
Vol 301-303 ◽  
pp. 1754-1759
Author(s):  
Feng Lv ◽  
T. Luan ◽  
C. H. Zhang
Keyword(s):  
Digital Signal Processor ◽  
Sampling Method ◽  
Dead Time ◽  
Digital Signal ◽  
Online Simulation ◽  
Three Phase ◽  
Regular Sampling ◽  
The Look ◽  
Time Waveform ◽  
Error Generation

This paper discusses the principle of SPWM, as well as its mathematical models, highlight introduce the generation principle of SPWM wave based on TI digital signal processor TMS320LF2407A. The formula and mathematical model are simplified by using the symmetric regular sampling method. Update the value of the program by comparing the look-up table, this method improves the operational efficiency, and reduces the error generation. The paper detailed analysis the configuration of each register in event manager module, and gives a critical interrupt subroutine. Through online simulation debugging, get the correct SPWM and the corresponding dead-time waveform.

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