VXi VT1422A 사용자 설명서

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 first INIT command to 
exceed 1 minute on some platforms, notably the Agilent/HP E1405B/06A. 
Subsequent INITs (with no other configuration changes) do not need to regenerate 
EU tables and execute much faster.

•

Strain measurements require the use of Bridge Completion Signal Conditioning 

Plug-Ons or a Remote Strain Bridge Conditioning Unit.

•

Bridge Completion SCPs and RSCs provide the strain measurement bridges and 

their excitation voltage sources. <ch_list> specifies the voltage sensing 
channels that are to measure the bridge outputs. Measuring channels on a Bridge 
Completion SCP only returns that SCP's excitation source voltage. 

•

The VT1422A has five ranges: 0.0625 V dc, 0.25 V dc, 1 V dc, 4 V dc, and 

16 V dc. To select a range, simply specify the range value (for example, 4 selects 
the 4 V dc range). If a value is specified that is larger than one of the first four 
ranges, the VT1422A selects the next higher range (for example, 4.1 selects the 
16 V dc range). Specifying a value larger than 16 generates an error. Specifying 
0 selects the lowest range (0.0625 V dc). Specifying AUTO selects auto range. 
The default range (no range parameter specified) is auto range. 

:FBENding

Full Bending Bridge

Both VT1529A/B and SCPs

:FBPoisson

Full Bending Poisson Bridge

SCPs only

:FPOisson

Full Poisson Bridge

SCPs only

:HBENding

Half Bending Bridge

Both VT1529A/B and SCPs

:HPOisson

Half Poisson Bridge

SCPs only

[:QUARter]

Quarter Bridge (default)

Both VT1529A/B and SCPs.
For VT1529A/B, selects Q350

:Q120

Quarter Bridge 120 

Ω

VT1529A/B only

:Q350

Quarter Bridge 350 

Ω

VT1529A/B only

:USER

Quarter Bridge with user 
installed resistor

VT1529A/B only

numeric (float32)

see comments

V dc

channel list (string)

100 - 15731

none