Version 4
SHEET 1 880 680
WIRE -80 112 -128 112
WIRE -16 112 -80 112
WIRE 144 112 64 112
WIRE 352 112 144 112
WIRE 496 112 416 112
WIRE -128 176 -128 112
WIRE 352 176 336 176
WIRE 432 176 416 176
WIRE 336 240 336 176
WIRE 336 240 304 240
WIRE 432 240 432 176
WIRE 464 240 432 240
WIRE -128 304 -128 256
FLAG 496 112 0
FLAG -128 304 0
FLAG -80 112 Tx
FLAG 144 112 TxRx
SYMBOL PiezoElement 384 144 R0
WINDOW 0 1 63 Center 0
WINDOW 3 -2 -87 Center 0
SYMATTR InstName X1
SYMATTR Value L=0.5m S=1e-4
SYMBOL SubstInf 256 240 M0
WINDOW 0 -2 -59 Center 0
SYMATTR InstName X2
SYMATTR Value2 d=1.3 V=300
SYMBOL Misc\\signal -128 160 R0
WINDOW 3 11 107 Left 0
WINDOW 123 42 60 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 1 4.34Meg)
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMBOL res 80 96 R90
WINDOW 0 -5 60 VBottom 0
WINDOW 3 37 63 VTop 0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL SubstInf 512 240 R0
WINDOW 0 -2 -59 Center 0
SYMATTR InstName X3
SYMATTR Value2 d=1.3 V=300
TEXT 248 160 Left 0 ;Air
TEXT -96 312 Left 0 !.ac dec 10000 1Meg 50Meg
TEXT 424 88 Left 0 ;PZT-5
TEXT 520 160 Right 0 ;Air
RECTANGLE Normal 592 288 176 144 2