Two cylindrical fast-response pressure probes for unsteady flow measurements in turbomachinery have been designed and tested. Commercially available miniaturized pressure sensors have been used to ensure high reliability and low manufacturing costs. Analytical and numerical models have been applied to the design of the line–cavity system connecting the pressure tap and the (encapsulated) sensor, to improve the dynamic behaviour of the probes. Dynamic calibrations in a low-pressure shock tube have also been carried out to determine the probe transfer function and to extend the probe operating range beyond the resonance frequency of the line–cavity system. One of the new probes exhibits a frequency response of about 80 kHz in the range 0–35 kPa, a suitable value for most turbomachinery applications.

Design and analysis of a new concept fast-response pressure probes

PERSICO, GIACOMO BRUNO AZZURRO;GAETANI, PAOLO;GUARDONE, ALBERTO MATTEO ATTILIO
2005-01-01

Abstract

Two cylindrical fast-response pressure probes for unsteady flow measurements in turbomachinery have been designed and tested. Commercially available miniaturized pressure sensors have been used to ensure high reliability and low manufacturing costs. Analytical and numerical models have been applied to the design of the line–cavity system connecting the pressure tap and the (encapsulated) sensor, to improve the dynamic behaviour of the probes. Dynamic calibrations in a low-pressure shock tube have also been carried out to determine the probe transfer function and to extend the probe operating range beyond the resonance frequency of the line–cavity system. One of the new probes exhibits a frequency response of about 80 kHz in the range 0–35 kPa, a suitable value for most turbomachinery applications.
2005
pressure probe; flow measurement; turbomachinery
File in questo prodotto:
File Dimensione Formato  
2-Persico_Gaetani_Guardone_MST_05.pdf

Accesso riservato

: Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione 484.19 kB
Formato Adobe PDF
484.19 kB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/554726
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 107
  • ???jsp.display-item.citation.isi??? 78
social impact