{TAIL ~ Phase detector} for a vortex flowmeter using {HEAD ~ ultrasonic transducers} connected to separate transformers for phase detection 
{ TAIL ~ Phase detector } for a vortex flowmeter using { HEAD ~ ultrasonic transducers } connected to separate transformers for phase detection
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH