Abstract
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 readout process. We show that accurate pattern
centroid estimation is indispensable for precise measurements
of localized fluid pressure values.
| Original language | English |
|---|---|
| Title of host publication | Visualization, Imaging And Image Processing |
| Number of pages | 6 |
| Publication status | Published - 2006 |
Fields of science
- 101014 Numerical mathematics
- 102003 Image processing
- 103021 Optics
- 202 Electrical Engineering, Electronics, Information Engineering
- 202012 Electrical measurement technology
- 202014 Electromagnetism
- 202015 Electronics
- 202016 Electrical engineering
- 202021 Industrial electronics
- 202022 Information technology
- 202024 Laser technology
- 202027 Mechatronics
- 202036 Sensor systems
- 202037 Signal processing
- 202039 Theoretical electrical engineering
- 203016 Measurement engineering
- 211908 Energy research