Gearbox Vibration Signal Amplitude and Frequency Modulation

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An Amplitude- and Frequency-modulation Vocoder for Audio Signal Processing

The decomposition of audio signals into perceptually meaningful modulation components is highly desirable for the development of new audio effects on the one hand and as a building block for future efficient audio compression algorithms on the other hand. In the past, there has always been a distinction between parametric coding methods and waveform coding: While waveform coding methods scale e...

متن کامل

Modern Vibration Signal Processing Techniques for Vehicle Gearbox Fault Diagnosis

This paper presents modern vibration signalprocessing techniques for vehicle gearbox fault diagnosis, via the wavelet analysis and the Squared Envelope (SE) technique. The wavelet analysis is regarded as a powerful tool for the detection of sudden changes in non-stationary signals. The Squared Envelope (SE) technique has been extensively used for rolling bearing diagnostics. In the present work...

متن کامل

Amplitude and Frequency/Phase Modulation

I always had difficulties in understanding frequency modulation (FM) and its frequency spectrum. Even for the pure tone modulation, the FM spectrum consists of an infinite number of sidebands whose signs change from one sideband to the next one and whose amplitudes are given by the horrible Bessel functions. . . I work for Zurich Instruments, a Swiss maker of lock-in amplifiers and it has becom...

متن کامل

Amplitude and frequency modulation in wall turbulence

B. Ganapathisubramani, N. Hutchins, J. P. Monty, D. Chung and I. Marusic Journal of Fluid Mechanics / Volume 712 / December 2012, pp 61 ­ 91 DOI: 10.1017/jfm.2012.398, Published online: 27 September 2012 Link to this article: http://journals.cambridge.org/abstract_S0022112012003989 How to cite this article: B. Ganapathisubramani, N. Hutchins, J. P. Monty, D. Chung and I. Marusic (2012). Amplitu...

متن کامل

Detection of combined frequency and amplitude modulation.

This article is concerned with the detection of mixed modulation (MM), i.e., simultaneously occurring amplitude modulation (AM) and frequency modulation (FM). In experiment 1, an adaptive two-alternative forced-choice task was used to determine thresholds for detecting AM alone. Then, thresholds for detecting FM were determined for stimuli which had a fixed amount of AM in the signal interval o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Shock and Vibration

سال: 2012

ISSN: 1070-9622,1875-9203

DOI: 10.1155/2012/839420