National Instruments SCXI -1125 用户手册

© National Instruments Corporation

After configuring the task and channels, you can start the acquisition, read 
measurements, analyze the data returned, and display it according to the 
needs of your application. Typical methods of analysis include digital 
filtering, averaging data, performing harmonic analysis, applying a custom 
scale, or adjusting measurements mathematically.

NI provides powerful analysis toolsets for each NI ADE to help you 
perform advanced analysis on the data without requiring you to have a 
programming background. After you acquire the data and perform any 
required analysis, it is useful to display the data in a graphical form or log 
it to a file. NI ADEs provide easy-to-use tools for graphical display, such as 
charts, graphs, slide controls, and gauge indicators. NI ADEs have tools 
that allow you to easily save the data to files such as spread sheets for easy 
viewing, ASCII files for universality, or binary files for smaller file sizes.

After you have completed the measurement, analysis, and presentation of 
the data, it is important to stop and clear the task. This releases any memory 
used by the task and frees up the DAQ hardware for use in another task.

In LabVIEW, tasks are automatically cleared.

This section describes in more detail the steps shown in the typical program 
flowchart in Figure 5-1, such as how to create a task in LabVIEW and 
configure the channels of the SCXI-1125. If you need more information or 
for further instructions, select Help»VI, Function, & How-To Help from 
the LabVIEW menu bar.

Except where otherwise stated, the VIs in Table 5-4 are located on the Functions» 

All Functions»NI Measurements»DAQmx - Data Acquisition subpalette and 
accompanying subpalettes in LabVIEW.