PPT Slide

Sensor should possess a flat, unity gain and minimum-phase frequency response.

Thermal shear stress sensors
• Thermal inertia of sensing element/substrate
• Frequency dependent heat conduction into the substrate/prongs

Unequal static sensitivity & dynamic sensitivity

Rigorous characterization of the sensor is required for quantitative turbulence measurements

Interdisciplinary

Microsystems

Group

Hot-wire temperature sensitivity

as a function of aspect ratio and Uo

(Perry, Smits, and Chong, J. Fluid Mech.,

1979)

w

V(w) = H(w)*t(w)

Previous slide

Next slide

Back to first slide

View graphic version