Keysight Technologies 3458A Guide D'utilisation page 160

4 Making Measurements
AC bandwidth
For the fastest AC measurements, specify the AC bandwidth (ACBAND command)
to match the frequency content of the input signal. The specifications in
Appendix A
components of the input signal.
Offset compensation
For 2- and 4-wire ohms measurements with offset compensation enabled, an
offset voltage measurement is made before each resistance reading. This requires
more time than with offset compensation disabled (OCOMP OFF).
High-speed DCV example
The following program measures DC voltage at the fastest. possible rate
(>100k readings per second). The readings are stored in reading memory.
10 OUTPUT 722;"PRESET FAST"!DCV, 10 V RANGE, TARM SYN, TRIG AUTO
20 OUTPUT 722;"APER 1.4E-6"!LONGEST INTEGRATION TIME POSSIBLE FOR
25 !>100K READINGS PER SECOND
30 OUTPUT 722;"MFORMAT SINT"!SINT MEMORY FORMAT
40 OUTPUT 722;"MEM FIFO"!ENABLE READING MEMORY
50 OUTPUT 722;"NRDGS 10000,AUTO!10000 READINGS/TRIGGER, AUTO SAMPLE
EVENT
60 OUTPUT 722;"TARM SGL"!TRIGGER READINGS
70 END
High-speed OHM (or OHMF) example
The following program measures 2-wire ohms at the fastest possible rate
(>100k readings per second). This program can be adapted to 4-wire ohms by
using the OHMF command instead of the OHM command in line 50.
10 OUTPUT 722;"PRESET FAST"!DCV 10 V RANGE, TARM SYN, TRIG AUTO
20 OUTPUT 722;"APER 1.4E-6"!LONGEST INTEGRATION TIME POSSIBLE FOR
25 !>100K READINGS PER SECOND
30 OUTPUT 722;"MFORMAT SINT"!SINT MEMORY FORMAT
40 OUTPUT 722;"MEM FIFO"!ENABLE READING MEMORY
50 OUTPUT 722;"OHM 100E3"!2-WIRE OHMS, 100 K(Ω) RANGE
60 OUTPUT 722;"NRDGS 10000,AUTO"!10000 READINGS/TRIGGER, AUTO SAMPLE
EVENT
70 OUTPUT 722;"TARM SGL"!TRIGGER READINGS
80 END
160
show the reading rates for AC measurements based on the frequency
Keysight 3458A User's Guide