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Rohde & Schwarz RT-ZD40 Bedienungsanleitung Seite 80

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RT-ZD40
4
Characteristics of Differential Probes
A differential probe has three sockets: the positive signal socket (+), the negative
signal socket (-), and the ground socket.
Fig. 4-1: Input voltages on a differential probe
Multiple input voltages can be defined for a differential probe:
● Differential mode input voltage (V
Voltage between the positive and negative signal sockets
● Positive single-ended input voltage (V
Voltage between the positive signal socket and the ground socket
● Negative single-ended input voltage (V
Voltage between the negative signal socket and the ground socket
● Common mode input voltage (V
Mean voltage of positive and negative signal sockets referred to the ground
socket, respectively
Two of these voltages are independent values, the other two can be calculated:
V
V
V
in
p
n
V
V
p
n
V
cm
2
Typically, the differential and the common mode input voltages are used to
describe the behavior of a differential probe.
User Manual 1410.5363.02 ─ 03
Characteristics of Differential Probes
, V
)
in
dm
)
p
)
n
)
cm
28

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1410.5205.02