National Instruments 373873C-01 用户手册

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You can use LabVIEW SignalExpress to record and analyze 
measurements. You can record any time-domain, double, U32, or Boolean 
step output. You also can analyze and process logged data by playing it 
through analysis steps. 

This chapter teaches you how to record data using the integrated data 
logging features in LabVIEW SignalExpress. You learn how to record a 
specified signal, play back that signal, and analyze the signal using analysis 
steps. You also learn how to use the Recording Options View to log signals 
based on specified start or stop conditions. 

You can use the Record button to configure a data logging process. 

Complete the following steps to specify a signal to record and to record the 
signal.

1.

Select File»Open Project, navigate to the 

SignalExpress\

Examples\Tutorial

 directory, and double-click 

Logging.seproj

.

This project uses the Create Signal step to generate a signal based on a 
formula.

2.

Click the Record button, shown at left, to open the Logging Signals 
Selection dialog box.

The Logging Signals Selection dialog box displays the signals in the 
project available for recording. You can select one signal or multiple 
signals to record. You also can specify a name and description for 
the log.

3.

Place a checkmark in the signal checkbox to record the formula signal 
generated in the Create Signal step.

4.

Click the OK button to close the Logging Signals Selection dialog 
box and begin recording the signal. The logging operation continues 
until you click the Stop button.