Sensors of this sort comprise structural elements inducing an oscillating flow component transverse to a fluid flow direction and representative of a rate of flow when {HEAD ~ the fluid} is flowing along {TAIL ~ the flow direction} 
Sensors of this sort comprise structural elements inducing an oscillating flow component transverse to a fluid flow direction and representative of a rate of flow when { HEAD ~ the fluid } is flowing along { TAIL ~ the flow direction }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL