VXI VT1422A, User Manual

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Programming the VT1422A & VT1529A/B for Remote Strain Measurement 81 Chapter 3
Figure 3-16. Sequence for Built-in Strain EU Conversion
Periodic Calibration
Retrieve readings from
FIFO and/or CVT
Trigger event for each pass
through Scan List
Set up Trigger System to scan
strain bridge channels
Set up the analog input Scan List
Measure unstrained bridge output
voltages and send to EU routines
Measure bridge excitation
voltages and send to EU routines
Send gage factors to
channel EU routines
To convert readings to
Engineering Units of strain
*CAL? and CALibration:REMote?
SENSe:FUNCtion:STRain: . Also sets <bridge_type>
bridge config switches and turns on excitation V
SENSe:STRain:GFACtor
MEASure:VOLTage:EXCitation?
MEASure:VOLTage:UNSTrained?
ROUTe:SEQuence:DEFine
TRIG:SOURce, TRIG:COUNt, ARM:SOURce
TRIG:TIMer
Set up Sample Timer for best
channel-to-channel scan rate
Initiate Trigger System
SAMPle:TIMer
INITiate[:IMMediate]
TRIG[:IMM], *TRG (if TRIG:SOUR HOLD),
EXTernal trig, TTLTRGn signal, or TRIG:TIMer
SENSe:DATA:FIFO:..., SENSe:DATA:CVTable?
Set Input Filter on VT1529A/B INPut:FILTer:FREQuency and INPut:FILTer:STATe