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