Is there an FFT program (that logs data) I can use for accelerometer testing

[sperry]

Application is ... sensing vibrations from a downhole (drilling rig) air hammer tool. Need to log the data and distinguish the frequency fo the tool vibration from the drilling string vibration. Hammer tool noise is about 28 Hz.

[preston_johnson]

Thank you for the question. There is an excellent LabVIEW tool that will distinguish vibration frequencies from one another. This is the Order Analysis toolset. It uses a once per rev (or multiple per rev pulse) as a base or fundamental frequency and is able to separate out the vibration signatures at harmonics and sub-harmonics. Standard LabVIEW or LabVIEW with the Datalogging and Supervisory Control Toolset both work well with the LabVIEW Order Analysis tools installed and working. I would be happy to provide example code, or discuss the application in more detail with you.

Sincerely,

Preston Johnson
Business Development Manager
Industrial Applications (Machine Vibrations)
National Instruments
512-683-5444
preston.johnson@ni.com