Fsource - Agilent Technologies 3458A User Manual

FSOURCE

Example

FSOURCE

Syntax
source
Remarks
Example
182 Chapter 6 Command Reference
•
The leftmost digit which is a half digit for most measurement functions, is a full
digit (0 - 9) for frequency measurements.
•
Readings made with autorange enabled take longer because the input signal is
sampled (to determine the proper range) between frequency readings.
•
For frequency (and period) measurements, an overload indication means the
voltage or current amplitude is too great for the specified measurement range.
It does not mean the applied frequency (or period) is too great to be measured.
•
Related Commands: ACBAND, FSOURCE, FUNC, LFILTER, PER, RES
10 OUTPUT 722;"FSOURCE ACI"
20 OUTPUT 722;"FREQ .01,.001"
25
30 END
Frequency Source. Specifies the type of signal to be used as the input signal for
frequency or period measurements.
FSOURCE [source]
The source parameter choices are:
Numeric
source Query
Parameter Equiv.
ACV 2
ACDCV 3
ACI 7
ACDCI 8
Power-on source = ACV.
Default source = ACV.
•
Query Command. The FSOURCE? query command returns the present
frequency source. Refer to "Query Commands" near the front of this chapter for
more information.
•
Related Commands: FREQ, FUNC, PER
10 OUTPUT 722;"FSOURCE ACDCI"
20 OUTPUT 722;"FREQ .l,.Ol"
25
30 END
!SELECTS AC CURRENT AS INPUT SOURCE
!SELECTS FREQUENCY MEASUREMENTS, 10mA
!RANGE, 10ms GATE TIME, 5 DIGlTS RES.
Description (measurement capabilities)
AC voltage (FREQ 1Hz - 10MHz; PER 100ns - 1s)
AC+DC voltage (FREQ 1Hz - 10MHz; PER 100ns - 1s)
AC current (FREQ 1Hz - 100kHz; PER 10µs - 1s)
AC+DC current (FREQ 1Hz - 100kHz; PER 10µs - 1s)
!SELECTS ACDCI AS THE INPUT SOURCE
!SELECTS FREQUENCY, 100mA RANGE, 1ms
!GATE TIME, 4 DIGITS OF RESOLUTION