3.5 Setting Screen Reference
3
-
49
ZA 57630
・
SYNC(AC)
: Turn measurement synchronous driving on. Only the AC output is
turned on when measurement starts and only the AC output is
turned off when measurement ends. DC on/off control is not
performed.
If repeat measurement is performed while measurement synchronous driving is on, the
output is turned off each time for each measurement is completed for either spot
measurement or sweep measurement.
■ [ON/OFF MODE]
: Set the ON/OFF mode.
This sets the state for when measurement signal output is turned on/off. This is used to
avoid sudden signal changes such as when the device under test is a mechanical system.
○ Setting procedure
<List operations (immediate settings)>
・
QUICK
: Turn on/off instantly. When this is on, oscillation starts with a phase of 0°.
・
SLOW
: Turn the output on/off slowly over a period of about 10 seconds.
・
0°
SYNC
: Turn output off after waiting until the 0° phase. When this is on,
oscillation starts with a phase of 0°.
When
0° SYNC
is set, it takes up to one cycle of the signal at the longest from the time the
output off operation is performed to the time the output is actually turned off. Please note
that at 10 µHz it takes up to 10
5
seconds (about 27.8 hours) at the longest.
■ [FREQ CHNG MODE]
: Set the phase for when the frequency changes.
This sets whether to change the frequency instantly or to wait until the 0° phase when
changing the frequency. When performing measurement such as electrochemical impedance
measurement, the total charge transfer to the DUT can be made zero because the areas of
the positive and negative sides of an AC sinusoidal signal match.
○ Setting procedure
<List operations (immediate settings)>
・
ASYNC
: Change the frequency instantly.
・
0° SYNC
: Change the frequency after waiting until the 0° phase.
When
0° SYNC
is set, it takes up to one cycle of the measurement signal at the longest until
the frequency is changed (including when a sweep is in progress). Please note that at 10 µHz
it takes up to 10
5
seconds (about 27.8 hours) at the longest.
■ [10MHz REF IN]
: Set the reference clock input.
This is used to improve the frequency accuracy and stability by using an external reference
clock that is more accurate than the internal reference clock of this instrument. This is also
used to make the frequency accuracy common among multiple devices.
○ Setting procedure
<List operations (immediate settings)>
・
DISABLE
: Use the internal reference clock.
Содержание ZA57630
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