VXi VT1529A/B 사용자 설명서

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VT1529A/B channels provide both strain bridge completion and 

bridge output sense so <ch_list> links strain EU conversion directly to 
those channels.

When the SENS:FUNC:STR:<bridge_type> command is used with 
VT1529A/B channels, the bridge configuration switches for those channels 
are set to actually configure the bridge type specified. There is no need to 
send the configuration only SENSe:STRain:BRIDge:TYPE command for 
channels that use the SENSe:FUNCtion:STRain:<bridge_type> command.

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The optional <range> parameter can be used to choose a fixed A/D 

range. When not specified (defaulted), the module uses auto-range.

The following command sequence is for conventional strain completion SCPs. 
For VT1529A/B based command sequences, see “Programming the 
VT1422A & VT1529A/B for Remote Strain Measurement” on page 57.

To link channels 23 through 30 to the quarter bridge strain EU conversion:

SENS:FUNC:STR:QUAR (@123:130)

Other commands used to set up strain measurements are:
 [SENSe:]STRain:POISson
 [SENSe:]STRain:EXCitation
 [SENSe:]STRain:GFACtor
 [SENSe:]STRain:UNSTrained

Because of the number of possible strain gage configurations, the driver 
must generate any Strain EU conversion tables and download them to the 
instrument when INITiate is executed. This can cause the time to complete 
the INIT command to exceed one minute.

See the Command Reference (Chapter 7) and the VT1506A/07A and 
VT1511A User’s Manuals for more information on strain measurements.

See “Creating and Loading Custom EU Conversion Tables” on page 150. 

Analog outputs are implemented either by a VT1531A Voltage Output SCP 
or a VT1532A Current Output SCP. Channels where these SCPs are 
installed are automatically considered outputs. No SOURce:FUNCtion 
command is required since the VT1531A can only output voltage, while the 
VT1532A can only output current. The only way to control the output 
amplitude of these SCPs is through the VT1422A’s Algorithm Language.