PPT Slide
- Obtain a theoretical/empirical relation between the output of the sensor and the induced shear stress that is valid for different flow configurations.
- An accurate model of the frequency dependent substrate conduction term (e.g. CFD), in order to derive the device sensitivity to shear stress fluctuations.
- Comparison of the direct dynamic calibration technique with a known shear stress input to indirect techniques like electronic signal injection.
- Characterize the sensitivity to temperature fluctuations at various overheat ratios. (ongoing)
- Determine the ratio of forced to natural convection at different overheat ratios and mean shear stress. (ongoing)
- Characterize the sensor in different velocity profiles. (ongoing)
- Calibration of thermal shear stress sensor in constant temperature mode of excitation. (ongoing)