PATTERN CENTROID ESTIMATION AS BASIS FOR ACCURATE OPTICAL PRESSURE MEASUREMENT
Sprache des Vortragstitels:
Englisch
Original Kurzfassung:
The local measurement of highly dynamical pressure processes
in a hydraulic fluid systems is a profound measuring
problem due to the small number of noninvasive sensor
principles that are suitable. In most cases the pressure excursion
is typically followed by formidable flow velocities
which lead to quick degradation of any immersed sensor. In
this paper we present a technique where a gas bubble that
can easily be generated at the location of interest within the
fluid acts as a sensory element whose pressure dependent
diameter is read out optically. We elaborate on the digital
image processing of diffraction pattern generated by the
optical read–out process. We show that accurate pattern
centroid estimation is indispensable for precise measurements
of localized fluid pressure values.
Sprache der Kurzfassung:
Deutsch
Vortragstyp:
Vortrag auf einer Tagung (referiert)
Vortragsdatum:
28.08.2006
Vortragsort:
Spanien
Details zum Vortragsort:
IASTED Visualisation and Image Processing Mallorca
Forschungs-