UFF58 ASCII VIs

Sound and Vibration Measurement Help


Edition Date: March 2018
Part Number: 372416L-01
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LabVIEW 2018 Sound and Vibration Toolkit Help
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Owning Palette: File I/O VIs

Use the UFF58 ASCII File I/O VIs to write ASCII UFF58 (universal file format) files. Each UFF58 file consists of one or more functions. Each function contains 12 records. Records 1-11 form the function header, and record 12 is the function data. Use the UFF58b VIs to read both binary and ASCII files.

The VIs on this palette can return general LabVIEW error codes or specific sound and vibration error codes.

Palette ObjectDescription
SV Close FileCloses the UFF58 (universal file format) file specified by file refnum.
SV UFF58 ASCII Open FileOpens an existing UFF58 (universal file format) file, creates a new UFF58 file, or replaces an existing UFF file. You can input the file programmatically or interactively using a file dialog box.
SV UFF58 Write ASCII FunctionWrites data to the UFF58 (universal file format) file specified by the file refnum input. This VI also writes the fields in records 1, 2, and 3, ID lines (1-3). You can write a single time domain waveform, a single real frequency spectrum, or a complex frequency spectrum to a UFF file. If a frequency spectrum is in decibels, this VI converts the spectrum to linear before writing to the UFF58 file. The default instance, SV UFF58 Write ASCII Function (Time Waveform), writes a single time domain waveform to the file specified by the file refnum input. Wire data to the file refnum input to determine the polymorphic instance to use or manually select the instance.


SubpaletteDescription
Advanced VIsUse the UFF58 ASCII Advanced VIs to format ASCII UFF58 (universal file format) functions. Each function contains 12 records. Records 1-11 form the function header, and record 12 is the function data. The formatted strings returned by these VIs can be written to a standard text file that can be interpreted by a UFF58 File reader and imported by modal analysis software. Use Read VIs from the UFF58b VIs palette and Write VIs from the UFF58 ASCII VIs palette to convert UFF58 binary to ASCII format.

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