– When you initiate a measurement on an excitation voltage channel (see INITiate or READ? command), the
acquired value is stored in volatile memory in the reference register. Subsequent strain measurements use the
stored value as their reference. The value remains in the reference register until you measure a subsequent excit-
ation voltage value in the reference register or remove the mainframe power.
[SENSe:]STRain:GFACtor {<gage_factor> | MIN | MAX | DEF} [, (@<ch_list>)]
[SENSe:]STRain:GFACtor? [{(@<ch_list>) | MIN | MAX | DEF}]
Specifies the gage factor to be used to convert direct strain and strain bridge readings on the specified channel.
Gage factor is defined as the ratio of the fractional change in resistance to the fractional change in length (strain)
along the axis of the edge.
Parameter Typical return
<gage_factor> = Numeric value between 0.5 and 5
Default: 2
(none)
Set gage factor as 2 for channe 101
STR:GFAC 2 (@101)
– Gage factor is a dimensionless quantity. The larger the value, the more sensitive strain gage.
Keysight DAQ970A/DAQ973A Programming Guide 251
2 SCPI Programming
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