Agilent Technologies 53220A User Manual page 157

(Figures 5-2 and 5-5), programmatically it should occur after all other gate
parameters have been set. This prevents potential "settings conflict" errors
between the SENSe subsystem commands, and is illustrated in the examples
and program segments that use these commands.
Typical counter measurements and most applications use an internal signal as
the gate source to control the gate for a specified (or default) period of time.
For applications requiring synchronization with external events or requiring
more precise gate control, an external gate or advanced gating is used. Exter-
53220A/53230A User's Guide
(fro m Trigg ered Sta te)
show n first se quen tially
set la st program ma tically
SEN Se:FR EQ uency:G ATE :S OU Rce
Gate Source
SEN Se:TO Talize :G ATE :S OU Rce
SEN Se:TINT erv al:GA TE:SO UR ce
* not available with time interval
Figure 5-5. Gate Source Sequence.
TIME
IM M ediate
EXT ern al
IN Put[1] | INP ut2 *
AD Vanc ed
S EN Se:FRE Qu ency:GAT E:TIME
S EN Se:TO Talize:GA TE:TIM E
S EN Se:TIN Terval:G AT E:SO UR ce IM M ediate
(fo r all EXT ern al Sou rce s)
Gate In/Out BNC Disable
O UTP ut:S TATe O FF
Triggering and Gating
(to SA MP le C OU Nt reach ed?)
Gate Start (open)
Gate Stop (closed)
Gate Start (open)
S EN Se:FRE Qu ency:GA TE:PO Larity
S EN Se:TO Talize:GA TE :PO Larity
S EN Se:TIN Terval:G AT E:PO Larity
IN Put[{1|2 }]:LEV el[{1 |2}][:A BS olu te]
Gate Stop (closed)
5
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