
deltawaveC-P
User manual
systec Controls Mess- und Regeltechnik GmbH 112/139
www.systec-controls.de
14.1.
Diagnostic menu of deltawaveC-P
14.1.1.
Oscilloscope / Auto-Window
14.1.1.1.
Signal propagation
deltawaveC-P offers sophisticated diagnostic menus allowoing experienced
users to optimize challenging measurements at harsh conditions. To use
the diagnostic menu as a powerful tool for troubleshooting a background in
signal propagation is provided by this chapter.
Picture 44 illustrates which signals do occur and how they progagate at
your pipe.
UP-Transd.
V-Mode
W-Mode
De
sir
ed
Sig
na
l
P
ip
e
S
ig
na
l
V-M
ode
Sig
nal
W-M
ode
-
Sig
nal
Z-Mode
Z-M
od
e-
Sig
na
l
UP-Transd.
V-Mode
W-Mode
De
sir
ed
Sig
na
l
P
ip
e
S
ig
na
l
V-M
ode
Sig
nal
W-M
ode
-
Sig
nal
Z-Mode
Z-M
od
e-
Sig
na
l
UP-Transd.
V-Mode
W-Mode
De
sir
ed
Sig
na
l
P
ip
e
S
ig
na
l
V-M
ode
Sig
nal
W-M
ode
-
Sig
nal
Z-Mode
Z-M
od
e-
Sig
na
l
Picture 44 Signal propagation
The UP-transducer mounted at upstream position emits the send (or
desired) signal. This signal propagates within the pipe wall (“pipe signal”)
as well as in the fluid. The signal propagating in the fluid is reflected a
couple of times at the pipe walls (Z-Mode signal, V-mode signal, W-mode
signal). The signal which represents the desired signal depends on