Test and Measurement Forum

Frequency measurement

Post any questions you may have about our current range of oscilloscopes

Frequency measurement

Postby town » Tue Dec 06, 2011 2:19 pm

Hi,

I want to log frequency of a voltage sinusoidal signal during a very long-term test (range of several months) with a sampling rate of about 1 minute. The frequency is from 10 to 300 Hz.

Could you recommend me a suit device for this purpose?

Thank you by advance,
town
Newbie
 
Posts: 0
Joined: Tue Dec 06, 2011 2:16 pm

Re: Frequency measurement

Postby Hitesh » Wed Dec 07, 2011 1:43 pm

Hi,

Are you looking to log continously over a period of several months without stopping?

The maximum number of samples per channel in a data file is 1 million.

You can use the PicoScope 2204 or 2205 with PicoLog recorder to capture frequency, but the minimum frequency is 20Hz.

I hope this helps.

Regards,
Hitesh

Technical Specialist
Pico Technology
Hitesh
Site Admin
Site Admin
 
Posts: 2063
Joined: Tue May 31, 2011 3:43 pm
Location: St. Neots, Cambridgeshire

Re: Frequency measurement

Postby town » Wed Dec 07, 2011 3:56 pm

Hi,
I don’t need measuring wave form, but just logging its frequency. So, 1 million of sample is ok for me because if I log frequency with a rate of 1 minute, it is equivalent to a period of about 2 years.

Effectively, I’m looking to log continuously without stopping. But I want to obtain gradually data logged. Is it possible? If the answer is no, can I do it by communicating the devices with LabView (because in anyway I will use LabView to log others measurements) ?

Thanks,
town
Newbie
 
Posts: 0
Joined: Tue Dec 06, 2011 2:16 pm

Re: Frequency measurement

Postby Hitesh » Wed Dec 07, 2011 4:32 pm

Hi,

If you're trying to vary the sampling interval during the course of a capture, that will not be possible.

The Software Development Kit for the device does contain a LabVIEW .llb and .vi file as examples.

Regards,
Hitesh

Technical Specialist
Pico Technology
Hitesh
Site Admin
Site Admin
 
Posts: 2063
Joined: Tue May 31, 2011 3:43 pm
Location: St. Neots, Cambridgeshire


Return to USB PC Oscilloscopes

Who is online

Users browsing this forum: No registered users and 0 guests