53131A and 53132A VISA and VBNET Rise and Fall Time Example Program
This program shows two different ways to make risetime and falltime measurements
for the 53131A and 53132A Counters. One way triggers the counter at the 5% and 85%
value of the input signal (default values are 10% and 90%). The other way uses the
0.5V low and 4.5V high voltage values of the signal (default values are 0V and 5V).
With the risetime and falltime functions, the counter automatically makes the
channels 1 and 2 a common input configuration. The returned measurements are output
into a list box.
The program requires that VISA is installed in your computer. VISA comes with the
Agilent I/O Library. A modified version of visa32.bas is included in the project
as file visa32.vb.
For VISA to work correctly, the visa32.bas file was modified, as shown in comments
in the the file. Also, the "Microsoft.VisualBasic.Compatibility.dll" has to be
referenced in the project sincd VISA needs some older Visual Basic cpabilities,
especially in setting the size of string variables.
The program was developed in Microsoft(r) Visual Basic .NET version 7.0
Date: August 27, 2004
Version: 1.0.0.0
Language: Microsoft(r) Visual Basic .NET version 7.0
Operating System: Windows(r) NT 4.0, 2000 Professional, XP
VISA Version: Use Agilent I/O Library version M.01.01.04 or above
Microsoft, Windows, NT, XP are registered trademarks of Microsoft Corporation
Copyright (c) 2004 Agilent Technologies Inc. All rights reserved.
You have a royalty-free right to use, modify, reproduce and distribute these example
files (and/or any modified version) in any way you find useful, provided that you
agree that Agilent has no warranty, obligations or liability for any Sample
Application Files.
Agilent Technologies will not modify the program to provide added
functionality or construct procedures to meet your specific needs.