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Dokumenttyp:
Zeitschriftenaufsatz 
Autor(en):
Hussein, Walid B.; Hussein, Mohamed A.; Becker, Thomas 
Titel:
Robust spectral estimation for speed of sound with phase shift correction applied online in yeast fermentation processes 
Abstract:
Ultrasound techniques are well suited to provide real-time characterization of bioprocesses in non-invasive, non-contact, and non-destructive low-power consumption measurements. In this paper, a spectral analysis method was proposed to estimate time of flight (TOF) between the propagated echoes, and its corresponding speed of sound (USV). Instantaneous power spectrum distribution was used for accurate detection of echo start times, and phase shift distribution for correcting the involved phase s...    »
 
Stichworte:
Fermentation monitoring Phase-shift correction Speed of sound Time of flight Ultrasound measurement 
Zeitschriftentitel:
Engineering in Life Sciences 
Jahr:
2012 
Band / Volume:
12 
Heft / Issue:
Seitenangaben Beitrag:
603-614 
Print-ISSN:
1618-2863