• Brush wear detection by continuous wavelet transform

    This paper is concerned with the singularity detection of a motor current signal These singularities are related to the brushes condition, which are one of the sensible parts of the motor to wear out As the mechanical contact between brushes and commutation segments increases, the rising parts of the current commutation waves become wider and this is a signal of brush wear

  • Cited by: 19
  • Brush wear detection by continuous wavelet

    Brush wear detection by continuous wavelet transform By TR Figarella Gomez and MH Maarten Jansen Abstract This paper is concerned with the singularity detection of a motor current signal These singularities are related to the brushes condition, which are one of the sensible parts of the motor to wear out As the mechanical contact between

  • TR Figarella Gomez and MH Maarten Jansen
  • Brush wear detection by continuous wavelet

    Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): http://hdl/2013/ULB(external link)

  • Cited by: 19
  • DeepDyve Unlimited Access to PeerReviewed Journals

    DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips

  • DIfusion Brush wear detection by continuous wavelet

    Brush wear detection by continuous wavelet transform par Figarella, T ;Jansen, Maarten Référence Mechanical systems and signal processing, 21, 3, page (12121222)

  • Cited by: 19
  • Maarten Jansen's Publications Personal Homepages

    Brush wear detection by continuous wavelet transform Mechanical Systems and Signal Processing, 21(3), pages 12121222, April 2007 M Jansen Minimum risk thresholds for data with heavy noise IEEE Signal Processing Letters, 13(5), pages 296299, May 2006 PDF preprint; W Van Aerschot,M Jansen, and A Bultheel

  • Wear detection by means of waveletbased acoustic

    Wear detection and monitoring during operation are complex and difficult tasks especially for materials under sliding conditions Due to the permanent contact and repetitive motion, the material surface remains during tests nonaccessible for optical inspection so that attrition of the contact partners cannot be easily detected

  • Cited by: 62
  • Wear detection by means of waveletbased acoustic

    Wear detection and monitoring during operation are complex and difficult tasks especially for materials under sliding conditions Due to the permanent contact and repetitive motion, the material surface remains during tests nonaccessible for optical inspection so that attrition of the contact partners cannot be easily detected This paper introduces the relevant scientific components of

  • Cited by: 62
  • A waveletanalysisbased differential method for

    Online wear monitoring could provide timely information about engine health condition In the current study, online monitoring of engine wear via an online visual ferrograph was performed in reliability tests of gasoline engines, and a waveletanalysisbased differential method of data analysis for wear condition estimation was proposed

  • Cited by: 11
  • Time–frequency analysis for ultrasonic measurement

    Brush wear detection by continuous wavelet transform Mech Syst Signal Process , 21 ( 3 ) ( 2007 ) , pp 1212 1222 Article Download PDF View Record in Scopus Google Scholar

  • (PDF) a comparison of monitoring techniques for

    Brush wear detection by continuous wavelet transform Article Apr 2007; the rising parts of the current commutation waves become wider and this is a signal of brush wear We successfully

  • Abstracts ENBIS

    Brush wear detection by Continuous Wavelet Transform Author: Talía Figarella Gómez (EURANDOM) Keywords: Brush wear, change points, wavelet transform modulus maxima Format: presentation (Reliability and safety) Contact: The brushes of a DC motor are current conducting material that ride on the commutator

  • A waveletanalysisbased differential method for

    Online wear monitoring could provide timely information about engine health condition In the current study, online monitoring of engine wear via an online visual ferrograph was performed in reliability tests of gasoline engines, and a waveletanalysisbased differential method of data analysis for wear condition estimation was proposed

  • A Novel Local TimeFrequency Domain Feature Extraction

    Rehorn et al (2006) investigated the detection and diagnosis of brush seizing faults in the spindle positioning using selective regional correlation (SRC) which is a local time tool wear detection due to its applicability and ease of use in the continuous wavelet transform (CWT) conc e its local spectral phase properties It works

  • Diagnosis methods of stator short circuit faults of BLDC

    Fault detection using traditional analytical methods are not always possible as this Keywords: ANFIS,Brushless dc motors, fault diagnosis short circuit wavelet I Introduction Brush Less DC motors or electronically commutated motors are electric motors powered by direct Condition monitoring is defined as the continuous evaluation of

  • Nonstationary Vibration Signal Analysis Using Wavelet

    In this paper, a nonstationary vibration analysis method based on continuous wavelet transform (CWT) and Wigner–Ville distribution (WVD) is presented In order to avoid the crossterms in the original WVD, a time–frequency filter created by wavelet spectrum is employed to filter the time–frequency distribution

  • A comparison of monitoring techniques for replacement

    32Journal of Scientific & Industrial Research J SCI IND RES VOL 70 JANUARY 2011 Vol 70, January 2011, pp 3235 *Author for correspondence Email: A comparison of monitoring techniques for replacement decision of a machinery

  • Search results | TU Delft Repositories

    The 2D Discrete Wavelet Transform (DWT) consumes up to 68% of the JPEG2000 encoding time In this paper, we develop efficient implementations of this important kernel on generalpurpose processors (GPPs), in particular the Pentium 4 (P4) Efficient implementations of the 2D DWT on the P4 must address three issues

  • IET Digital Library: Sensorless speed estimation of

    This study proposes a novel technique of speed estimation for permanent magnet direct current (PMDC) brushed motor The impact of armature teeth–slots and commutation of PMDC motor on armature current is considered in this study to estimate the speed In many applications, speed measurement of motors is essentially required Conventionally mechanical sensors are coupled to the

  • Abstracts ENBIS

    Brush wear detection by Continuous Wavelet Transform Author: Talía Figarella Gómez (EURANDOM) Keywords: Brush wear, change points, wavelet transform modulus maxima Format: presentation (Reliability and safety) Contact: The brushes of a DC motor are current conducting material that ride on the commutator

  • Diagnosis methods of stator short circuit faults of BLDC

    Fault detection using traditional analytical methods are not always possible as this Keywords: ANFIS,Brushless dc motors, fault diagnosis short circuit wavelet I Introduction Brush Less DC motors or electronically commutated motors are electric motors powered by direct Condition monitoring is defined as the continuous evaluation of

  • Nonstationary Vibration Signal Analysis Using Wavelet

    In this paper, a nonstationary vibration analysis method based on continuous wavelet transform (CWT) and Wigner–Ville distribution (WVD) is presented In order to avoid the crossterms in the original WVD, a time–frequency filter created by wavelet spectrum is employed to filter the time–frequency distribution

  • Durham Research Online COnnecting REpositories

    speed to derive a fault detection signal The detection algorithm uses a continuouswavelettransformbased adaptive filter to track the energy in the prescribed timevarying faultrelated frequency bands in the power signal The central frequency of the filter is controlled by the generator speed, and the filter bandwidth

  • A Novel Wearable Flexible Dry Electrode Based on

    The measured original ECG data was processed with MATLAB R2018B as follows: first, the baseline drift was filtered by wavelet transform, then the EMG was filtered by lowpass filter with cutoff frequency of 60 Hz, and finally the 50 Hz power frequency interference was filtered by IIR trap with the cutoff frequencies of passband are 485 Hz

  • Miha Boltežar's home page at Laboratory for

    Fault detection in DC electro motors using the continuous wavelet transform  M Boltežar , I Simonovski and M Furlan Meccanica, 2003, vol 38, is 2, 251264

  • Experimental Evaluation of a Unified TimeScale

    The effectiveness of such a unified technique is demonstrated through experimental case studies, which confirmed its advantage over the wavelet or Fourier transform techniques employed alone Also, the unified technique has shown to be computationally more efficient than the enveloping technique based on continuous wavelet transform, thus

  • DIYPS | #WeAreNotWaiting to make the world a

    The output (C) is a matrix of wavelet power, periodicity, and time (days) Transform of example HCL data illustrate the presence of predominantly circadian power in glucose, and predominantly 16 h ultradian power in insulin Color map indicates wavelet

  • 农业机械学报

    And through further comparative analyses, by selecting nylon as brush material, adopting 3factor 5level orthogonal revolving combination way and DesignExpert 8061, taking operation speed, seedfilling inclination angle and seedprotection distance as test

  • Janko Slavič's home page at Laboratory for Dynamics

    Wear Rate vs Dynamic and Material Properties at Elevated Temperatures for a CopperGraphite Brush  A Turel , J Slavič and M Boltežar Journal of Mechanical Engineering, Volume 64

  • china crusher models concrusher detials wet grinder premium limestone crusher manufacturers in nigeria flue gas desulfurization systems cromite stone crusher penghancur batu terbesar dunia di yaman striker ponsel crusher indonesia mpact mining mill vs roll mining mill iron ore fines processing plant 100t h mobile crushing and screening production line in nigeria Complete Gold Mining Equipment And Price china products mobile portable crushing plant marketing department of a quarry company mining projects india flotation cell grid low wear rate 40mm forged ball for ball mill best seller mobile cone mining mill made in Sri Lanka mining of iron ore process clinker grinding germany professional iron ore mining equipment factory manufacturer photos of a mining jigging machine africa quary stone crusher new high quality asia hot used industrial stone crushing equipment puzzolana cone crusher 22100 150kw stone grinding machines south africa used hammer mill new zealand plant layout for gold processing dust jet pulse filter for crusher Gold Mining Systems For Sale two roller grinding machine two roller grinding machine suppliers and