Svantek SV 971A User Manual

SV 971A User Manual – Appendixes
179
APPENDIX B. DATA FILE STRUCTURES
B.1 GENERAL STRUCTURE OF THE SV 971A FILES
Each file containing data from the SV 971A instrument consists of several groups of words.
In the case of SV 971A (the internal file system rev. 1.05), there are two different types of files containing:
• the results stored in the file in the instrument’s logger (cf. App. B.2);
• setup data (cf. App. B.3).
Each file has the following elements:
• SvanPC file header (cf. Tab. B.1.1);
• file header (cf. Tab. B.1.2);
• unit and internal software specification (cf. Tab. B.1.3);
• calibration settings (cf. Tab. B.1.4);
• user’s text (a header) stored together with the measurement data (cf. Tab. B.1.5);
• parameters and global settings, common for all profiles (cf. Tab. B.1.6);
• parameters for measurement trigger (cf. Tab. B.1.7);
• parameters for logger trigger (cf. Tab. B.1.8);
• parameters for Wave-file recording (cf. Tab. B.1.9);
• special settings for profiles (cf. Tab. B.1.10);
• display settings of the main results (cf. Tab. B.1.11);
• header of the statistical analysis (cf. Tab. B.1.12);
• header of the file from the logger (cf. Tab. B.1.13);
• contents of the file from the logger (cf. Tab. B.1.14);
• parameters for RT60 analysis (cf. Tab. B.1.22);
• parameters for STIPA analysis (cf. Tab. B.1.25).
Other elements of the file structure are not obligatory for each file type stated above.
They depend on the file type (SLM, Dosimeter, file from the logger) and on the setting of the FULL STAT.
These elements are as follows:
• Header of the Summary Results Record (saved in Summary Results Record) (cf. Table B.1.15);
• main results (saved in Summary Results Record) (cf. Tab. B.1.16_SLM, B.1.16_DM);
• statistical levels (saved in Summary Results Record) (cf. Tab. B.1.17);
• 1/1 Octave analysis results (saved in Summary Results Record) (cf. Tab. B.1.18);
• 1/3 Octave analysis results (saved in Summary Results Record) (cf. Tab. B.1.19);
• results of the statistical analysis (saved in Summary Results Record) (cf. Tab. B.1.20);
• settings of the instrument saved in the setup file (cf. Tab. B.1.21);
• results of the RT60 analysis (cf. Tab. B.1.23, B.1.24);
• results of the STIPA analysis (cf. Tab. B.1.26, B.1.27);
• file-end-marker (cf. Tab. B.1.30).
Below, all file structure groups are described separately in Tab. B.1.1 – Tab. B.1.23. The format used in the
columns, named Comment with the square parenthesis ( [xx, yy] ), means the contents
of the word with; xx is the most significant byte (MSB) and yy the lowest significant byte (LSB)
of the word. The format 0xnnnn means that the nnnn is four-digit number in hexadecimal form.

Svantek SV 971A Specifications

General

Brand	Svantek
Model	SV 971A
Category	Measuring Instruments
Language	English