Test and Measurement Forum

Picoscope 4262, laptop battery or mains PC?

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

Picoscope 4262, laptop battery or mains PC?

Postby audio_jim » Fri Nov 23, 2012 11:38 pm

I have the Picoscope 4262 which I like very much, I just wanted to ask for peoples general opinions on the following.

I see that quite a lot of folk use laptops with these, are there any advantages to be gained by using a laptop running on its internal battery, over a desktop PC running from its mains switchmode PSU?

The theory I have in my head (whether justified or not), is that battery power would be a cleaner source of USB power for the picoscope rather than the noisy nature of a switchmode in a desktop PC.

Any thoughts on this one? would there be any noticeable differences/gains to be had etc?

Thanks!
Jim.
audio_jim
Newbie
 
Posts: 0
Joined: Fri Nov 23, 2012 11:29 pm

Re: Picoscope 4262, laptop battery or mains PC?

Postby alan » Sat Nov 24, 2012 7:38 am

The PicoScope 4262 will work fine regardless of the PC and its power as great care is taken inside the unit to filter out any noise from the PC.

Given its high dynamic range you do however have to be careful that whatever you are testing is not picking up any noise from the PC or other nearby equipment as some laptops / desktops do produce electrical noise. Good quality signal cables are a must.
alan
Site Admin
Site Admin
 
Posts: 171
Joined: Thu May 25, 2006 8:02 am

Re: Picoscope 4262, laptop battery or mains PC?

Postby audio_jim » Sat Nov 24, 2012 4:53 pm

Hi Alan,

Thanks ever so much for clearing that up, I am in the process of making up some really good quality leads for testing but its nice to know about the power (laptop or PC).

One other question while I have you here :D would you know how much it costs to have a 4262 calibrated as im thinking it might be wise after a year or so.

Thanks again,
Jim
audio_jim
Newbie
 
Posts: 0
Joined: Fri Nov 23, 2012 11:29 pm

Re: Picoscope 4262, laptop battery or mains PC?

Postby Martyn » Wed Nov 28, 2012 7:33 am

Currently £50 plus p&p
Martyn
Technical Specialist
Martyn
Site Admin
Site Admin
 
Posts: 2344
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots


Return to USB PC Oscilloscopes

Who is online

Users browsing this forum: No registered users and 0 guests