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VT1422A Command Reference 307Chapter 7
MEASure
• This command executes a measurement scan without running defined
algorithms. This is to keep algorithms from placing values in the FIFO buffer.
• The measurement sample interval is 392 µs
• Filter settings and states are not changed by this command.
• Note also that shunt resistor source and state are left as currently programmed.
• After completing the measurements, the instrument is re-configured to the same
settings that existed before the command was executed.
• When Accepted: Not while INITiated
• Related Commands: SENSe:STRain:EXCitation, MEAS:VOLT:UNST?
• *RST Condition: Channel unstrained values are not affected by *RST.
However, *RST changes the function for all analog input channels to Voltage.
When a strain channel is changed back to the strain function with a
SENS:FUNC:STRAIN... command, the unstrained values for these channels
will still be in effect. Of course, loss of power will cause the unstrained values
to be lost.
• Returned Value: numeric, number of channel values in FIFO. The type is int16.
• Send with VXIplug&play Function: hpe1422_cmdInt16_Q(...)
Usage MEAS:VOLT:UNST? (@10000:10931)
determine unstrained voltage on 128
strain channels through VT1539As in
SCP positions 0 and 1
SENS:DATA:FIFO:RESET
As in most cases, since the values have
been sent to the strain EU conversion,
the individual unstrained values do not
need to be seen.