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Title:Improved method for shot particle velocity measurement within a shotblasting chamber
Authors:ID Hribernik, Aleš (Author)
ID Bombek, Gorazd (Author)
Files:URL http://dx.doi.org/10.1016/j.flowmeasinst.2005.10.002
 
Language:English
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:This paper presents the application of two axially-spaced impact detecting sensors for correlation-based shot velocity measurement. The sensors were placed directly into the flow of shot particles for sensing the particles' impact. The implementation of cross-correlation for phase shift determination, however, was not an easy task. Several extensive improvements were necessary, before the original measurement system, already presented in this journal in December 2003, was capable of reliable velocity measurements. This paper presents the development of the system and optimisation of its components. The construction of a sensor built from a small microphone encapsulated in a metal housing and placed under a protective shield was optimised for a high ratio of frontal to side impact signal alteration. High vibration damping was also necessary. It was achieved by the combination of a well-weighted design for supporting elements and by a careful selection of used materials. These measures improved the similarity of the signals generated by the particlesć impact, significantly, and allowed the use of cross-correlation. The accuracy of the obtained results increased drastically by the application of cross-correlation, signal filtering was unnecessary and the signal processing was much faster.
Keywords:velocity measurements, shotblasting
Year of publishing:2006
PID:20.500.12556/DKUM-25676 New window
UDC:532.57:531.76
ISSN on article:0955-5986
COBISS.SI-ID:10263830 New window
NUK URN:URN:SI:UM:DK:NQK4T2JB
Publication date in DKUM:30.05.2012
Views:2203
Downloads:127
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
HRIBERNIK, Aleš and BOMBEK, Gorazd, 2006, Improved method for shot particle velocity measurement within a shotblasting chamber. Flow measurement and instrumentation [online]. 2006. [Accessed 15 March 2025]. Retrieved from: http://dx.doi.org/10.1016/j.flowmeasinst.2005.10.002
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Record is a part of a journal

Title:Flow measurement and instrumentation
Shortened title:Flow meas. instrum.
Publisher:Butterworth
ISSN:0955-5986
COBISS.SI-ID:169755 New window

Secondary language

Language:English
Keywords:meritve hitrosti, hitrost delcev, zaznavanje udarcev peska, stroj za peskanje, abrazija, pulzno delovanje turbine, mikrofonski senzorji


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