YOKOGAWA DL9000 Series, Руководство пользователя

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2-9
IM 701310-01E
Explanation of Functions
3
2
1
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5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
App
Index
• Edge OR
A trigger is activated by an edge on multiple trigger sources. When an Edge OR
trigger is used, the frequency of the trigger sources is limited to 200 MHz or less.
Width trigger
A trigger is activated by the duration of a pulse (pulse width). There are three types of
width trigger, as follows.
•
Pulse
A trigger is activated according to the relationship of the pulse width of the single
trigger source and the specified time.
• At the end of a pulse longer than the specified time (More than)
• At the end of a pulse shorter than the specified time (Less than)
• At the end of a pulse longer than specified time T1 and shorter than specified time
T2 (Between)
• At the end of a pulse either shorter than specified time T1 or longer than specified
time T2 (Out of range)
• A trigger when the pulse width exceeds the specified time (Time out)
Trigger source
More than
Trigger
t
T1
t > T1
Trigger source
Less than
Trigger
t
T1
t < T1
Trigger source
Between
Trigger
t
T1
T1 < t < T2
T2
Trigger source
Trigger
t
T1
t >T1
Time out
Trigger source
Out of Range
Trigger
t
T1
T2
Trigger
t < T1 or t > T2
• Pulse (Qualified)
A trigger is activated on the relationship between the pulse width of a single
trigger source and a specified time while the input signal states meet the specified
qualifications. The timing at which the trigger is activated is the same as for Pulse
trigger.
L H H
CH1
CH2
State: CH1 = H, CH2 = L, AND, Trigger source: CH3, falling, More than
L: low level, H: high level
Trigger
CH3
CH1
CH2
H
H
L
L
L
Qualification
false
Qualification
false
Qualification
true
t1
t2
t1 > T t2 > T
t3
t3 > T
L
Qualification
true
Trigger (Trigger activates when
the Qualification is true on
the falling edge of CH3.)
2.4 Triggers