The effects of tube deformities on the dynamic calibration of a tubing system

Matthew Marino, Alex Fisher, Roberto Sabatini

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Using the Berge and Tijdemen method for tube calibration is powerful as it allows for tubes of various dimensions to be used in a dynamic pressure data acquisition system by using post-processing methods to calibrate for the tubes natural dynamic response. Knowing the tubes response and using the inverse Fourier transform to calibrate the tube system is accepted however knowing how tube deformities influence this calibration is not known. Small singular deformities caused by pinch, twist and bending, which corresponded to a pinch and internal area ratios less than approximately 5 and 3.57 respectively, do not affect the tubing response of a system. Significant effects on the tubes response only occur at pinch and area ratios above these values. Furthermore, pinching ratios above 5 are extreme and represent a tube that is pinched locally to the point where it is almost blocked. This is testament to the tubes resilience to local and internal diameter changes. It can be safely assumed that unwanted and unexpected dampening of a tubing system could be due to a local tube deformity.

Original languageBritish English
Title of host publication2nd IEEE International Workshop on Metrology for Aerospace, MetroAeroSpace 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages507-512
Number of pages6
ISBN (Electronic)9781479975693
DOIs
StatePublished - 5 Aug 2015
Event2nd IEEE International Workshop on Metrology for Aerospace, MetroAeroSpace 2015 - Benevento, Italy
Duration: 3 Jun 20155 Jun 2015

Publication series

Name2nd IEEE International Workshop on Metrology for Aerospace, MetroAeroSpace 2015 - Proceedings

Conference

Conference2nd IEEE International Workshop on Metrology for Aerospace, MetroAeroSpace 2015
Country/TerritoryItaly
CityBenevento
Period3/06/155/06/15

Keywords

  • dynamic calibration
  • dynamic tube response
  • pressure measurement
  • pressure sensing
  • tube deformation

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