YOKOGAWA TA720, Руководство пользователя

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2-6
IM 704510-01E
Period A & Period B (Per.&Per.) (see section 5.5 for the operating procedure)
Measures the period of the input signals of CH A and CH B simultaneously. Period A &
period B cannot be selected in inter-symbol interference analysis mode. The slope can
be set to the rising edges of the CH A and CH B signals or the falling edges.
CH A
CH B
When set to A
↑
B
↑
Measured Measured
Measured Measured Measured
Measured
Period A & A-to-B Time Interval (Period&TI) (see section 5.6 for the operating procedure)
Measures the period of the CH A input signal and the A-to-B time interval
simultaneously. Period A & A-to-B time interval cannot be selected in inter-symbol
interference analysis mode. You can select whether to measure “the period of the rising
edge of the CH A signal” and “ the time interval of the rising edges of the CH A and CH B
signals” or “the period of the falling edge of the CH A signal” and “the time interval from
the falling edge of the CH A signal to the rising edge of the CH B signal.”
CH A
CH B
When set to A
↑
A
↑
B
↑
Measured
Measured Measured
Measured
Pulse Width A & A-to-B Time Interval(PW&TI)/Pulse Width A
→
A-to-B Time
Interval(PW
→
TI) (see section 5.7 for the operating procedure)
Measures the pulse width of the CH A input signal and the A-to-B time interval simultaneously.
The polarity of the pulse width measurement of the CH A input signal is fixed to both ( ).
The slope of the A-to-B time interval measurement can be set to the rising/falling edge of the CH
A signal to the rising or falling edge of the CH B signal. However, in inter-symbol interference
analysis mode, the slope for the A-to-B time interval measurement can be selected from six
combinations of the CH A and CH B slopes. In inter-symbol interference analysis mode, the A-
to-B time interval is extracted based on the measured data of pulse width A ( ). Therefore,
inter-symbol interference analysis is performed only on the result of the A-to-B time interval.
CH A
CH B
Measured
Measured
Measured Measured
When set to A A B
Measured Measured
Pulse Width A & Pulse Width B(PW&PW)/Pulse Width A
→
Pulse Width B(PW
→
PW) (see
section 5.8 for the operating procedure)
Measures the pulse width of the input signals of CH A and CH B simultaneously. The
polarity of the pulse width measurement is fixed to both ( ) for both CH A and CH B.
In inter-symbol interference analysis mode, the pulse width B ( ) is extracted based
on the measured data of pulse width A ( ). Therefore, inter-symbol interference
analysis is performed only on the result of pulse width B.
CH A
CH B
Measured Measured Measured
Measured Measured Measured Measured
2.4 Measurement Function (Measurement Item)