The secondaries of {HEAD ~ the two transformers} are connected together with rectification and filter circuitry to sum the secondary voltages and to yield an output voltage representative of {TAIL ~ the phase modulation} and thereby of the flow rate 
The secondaries of { HEAD ~ the two transformers } are connected together with rectification and filter circuitry to sum the secondary voltages and to yield an output voltage representative of { TAIL ~ the phase modulation } and thereby of the flow rate
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH