What factors affect the speed of a
The execution time of Single measurements,
Sweeps (linear or log) or custom sweeps via a source memory list for
Model 2400 series can be influenced by several factors.
Source-Delay-Measure Cycle (SDM) timing is
determined by a number of source and measure configuration
parameters. Several case scenarios of SDM cycle timing can be found
in Appendix A of the 2400 User Manual. Please refer to Appendix A for
more detailed information.
Measurement is one aspect of the SDM
- IF the Measurement is required for the
application, the NPLC (number of power line cycles) is a major
influence on speed.
- When enabled, the Auto Zero reduces zero
drift by measuring the zero and a reference with every signal
measurement, thus adding A/D conversions.
- By default, concurrent measurements is
enabled. The 24xx SourceMeter will provide both current and
voltage measurements with concurrent feature on.
Source is another portion of the SDM
- IF there are no source level changes,
additional settling time is not a factor. What is being sourced
(voltage or current) varies the SDM cycle timing as each source
offers different firmware overheads.
- The Output auto off feature turns off the
output after every measurement phase of the SDM. Disabling Output
off can save considerable time.