Su, Shuang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 100-106). / Abstracts in English and Chinese. / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Objective --- p.2 / Chapter 1.3 --- Methodology --- p.3 / Chapter Chapter 2 --- Literature Survey --- p.5 / Chapter 2.1 --- The Escapement --- p.5 / Chapter 2.2 --- Signature Analysis of Mechanical Watches -- Traditional Methods and Existing Systems --- p.10 / Chapter 2.2.1 --- Estimating Rate Deviation --- p.10 / Chapter 2.2.2 --- Measuring Beat Error --- p.11 / Chapter 2.2.3 --- Error Detection with a Graphical Diagram --- p.12 / Chapter 2.2.4 --- Analyzing Watch Ticks --- p.13 / Chapter 2.3 --- Time-Frequency Distributions and Reassignment --- p.14 / Chapter 2.3.1 --- Time-Frequency Distributions --- p.14 / Chapter 2.3.2 --- Reassignment Method --- p.18 / Chapter 2.4 --- Finite Element Analysis --- p.19 / Chapter Chapter 3 --- Signature Analysis of Mechanical Watch Movement --- p.21 / Chapter 3.1 --- Time-Domain Analysis: Endpoint Detection --- p.21 / Chapter 3.2 --- Time-Domain Analysis: Error Detection with a Graphical Chart --- p.27 / Chapter 3.3 --- Analyzing Ticks: from Time-Domain Analysis to Time-Frequency Analysis --- p.31 / Chapter Chapter 4 --- Reassigned Time-Frequency Distributions --- p.34 / Chapter 4.1 --- Spectrogram --- p.34 / Chapter 4.2 --- Morlet Scalogram --- p.35 / Chapter 4.3 --- Smoothed Pseudo-Wigner-Ville Distribution --- p.36 / Chapter 4.4 --- Reassignment principle --- p.37 / Chapter 4.5 --- Reassigned Spectrogram (RSP) --- p.39 / Chapter 4.6 --- Reassigned Morlet Scalogram --- p.40 / Chapter 4.7 --- Reassigned SPWV --- p.40 / Chapter 4.8 --- Performance Evaluation of Time-frequency Distributions --- p.41 / Chapter Chapter 5 --- Modal analysis and simulation results --- p.47 / Chapter 5.1 --- FEA Eigensystems --- p.47 / Chapter 5.2 --- Modal Analysis in ANSYS --- p.48 / Chapter 5.3 --- Transient Dynamic Analysis of Watch Parts in ANSYS --- p.50 / Chapter Chapter 6 --- Fault Detection Examples --- p.60 / Chapter 6.1 --- Example I --- p.60 / Chapter 6.2 --- Example II --- p.64 / Chapter Chapter 7 --- System Development --- p.69 / Chapter Chapter 8 --- Conclusions --- p.74 / Appendix I --- p.77 / Chapter 1. --- GUI Layout of the CUHK-IPE Watch Signature Analyzer (WTimer.fig) : --- p.77 / Chapter 2. --- Main Function of CUHK-IPE Watch Signature Analyzer (WTimer.m): --- p.78 / Chapter 3. --- Other Functions Called by the Main Function: --- p.85 / Chapter 3.1 --- Function for Split Signal up into (Overlapping) Frames (enframe.m):…… --- p.86 / Chapter 3.2 --- Function for Detecting BPH of the Watch (bph´ؤdetection.m): --- p.86 / Chapter 3.3 --- Function for Calculation the Rate Deviation and Beat Error of the Watch (rate4_6.m): --- p.89 / Chapter 3.4 --- Function for Calculating the RSP of the Signal (tfrrsp.m): --- p.95 / Chapter 3.5 --- Window Generation Function (tftb_window.m): --- p.97 / References --- p.100
| Identifer | oai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_326044 |
| Date | January 2007 |
| Contributors | Su, Shuang., Chinese University of Hong Kong Graduate School. Division of Mechanical and Automation Engineering. |
| Source Sets | The Chinese University of Hong Kong |
| Language | English, Chinese |
| Detected Language | English |
| Type | Text, bibliography |
| Format | print, xi, 106 leaves : ill. ; 30 cm. |
| Rights | Use of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
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