Search found 7 matches

by ServoTech
Wed Apr 02, 2008 8:25 pm
Forum: PicoScope 6 for Windows
Topic: THD Value vs HP FFT Analyzer
Replies: 6
Views: 5813

THD Value vs HP FFT Analyzer

Hi John,
When I try to add an attachment, I get an error saying that the .psdata file extension is not allowed. Do you have personal e-mail that I can send to?
Thank you for your help!
Best regards,
Mike
by ServoTech
Tue Apr 01, 2008 2:18 pm
Forum: PicoScope 6 for Windows
Topic: THD Value vs HP FFT Analyzer
Replies: 6
Views: 5813

THD Value vs HP FFT Analyzer

Hi John, On another motor, this one with a poor quality Back EMF waveform, the PicoScope again reads 41% lower value compared to both the HP Analyzer and the Lab View program. The HP and Lab View program both read 5.3% THD, and the PicoScope reads 3.1%. When sampling at a frequency inbetween sample ...
by ServoTech
Mon Mar 31, 2008 6:58 pm
Forum: PicoScope 6 for Windows
Topic: THD Value vs HP FFT Analyzer
Replies: 6
Views: 5813

THD Value vs HP FFT Analyzer

Hi John, Thanks for the reply. The waveform is a sine wave; the Back EMF of a Servo Motor. The HP FFT Analyzer reads .24%THD, and a Lab View application agrees exactly with the HP. The PicoScope, however, reads .14% when sampling at the exact fundamental frequency. When the sample frequency is a not...
by ServoTech
Fri Mar 28, 2008 8:48 pm
Forum: PicoScope 6 for Windows
Topic: THD Value vs HP FFT Analyzer
Replies: 6
Views: 5813

THD Value vs HP FFT Analyzer

Hi PicoTech,
Comparing the 3224 vs a HP 35665A FFT Analyzer, the PicoScope reads approximately 20% lower values. Any thoughts why?
Thank you!
Mike
:?
by ServoTech
Fri Mar 28, 2008 3:59 pm
Forum: PicoScope 6 for Windows
Topic: THD measurement filtering and output
Replies: 1
Views: 2080

THD measurement filtering and output

Dear Forum,
Is it possible to output a measurement, such as THD in an image file or other file type? Does the enhanced mode setting for a scope waveform affect the spectrum of that waveform?
Thank you!
Mike
:)
by ServoTech
Thu Mar 27, 2008 2:14 pm
Forum: PicoScope 6 for Windows
Topic: Save as txt problem
Replies: 5
Views: 5177

Saving as .csv and .txt

Hi Ziko,
Is there a new software release for this function? What is rev. number?
Thank you!
Mike
:)
by ServoTech
Mon Mar 24, 2008 4:05 pm
Forum: PicoScope 6 for Windows
Topic: Save as txt problem
Replies: 5
Views: 5177

Saving Data as Text File

Hi Forum,

Is there any update to this? I am unable to save using V6 also. It is now nearly a year later, however.

Best regards,
Mike

:wink: