Test and Measurement Forum

3424 oscilloscope

Which product is right for your exact requirements

3424 oscilloscope

Postby Roger » Sat Jun 17, 2006 12:01 pm

What is the noise level relative to fullscale, or in terms of bits?
If four channels are being recorded, is this 128k samples/channel?
What is the sample rate relative to the timebase setting?
Is "roll" recording possible?
With USB 2, how frequently can records be acquired?
Is external triggering possible?
If triggering is software selectable, can any channel be used?
Does the data acquisition software do any smoothing, if so, what kind?
Roger
Active User
Active User
 
Posts: 6
Joined: Sat Jun 17, 2006 11:44 am

Postby Michael » Mon Jun 19, 2006 8:16 am

Hello,

Thank you for your post.

I shall answer your questions in order:

1: The accuracy is rated at 1% of the active range.
2: Yes, the sample memory is divided by half for each active channel like this: 1 channel = 512k, 2 channels = 256k , 3&4 channels = 128k.
3: The sample rate is calculated by the scope based on the desired number of samples, total sample run time and the available timebases.
4: PicoLog allows you to record continuously at slower sampling rates.
5: USB 2.0 allows for approx. 2.5MB/Sec data transfer. Realtime sampling allows you to sample at approximately 5-10mSec intervals.
6&7: There is no external trigger on the 3424 scope. Triggering is available on any active channel. This is selectable from the software.
8: Software display modes allow you to view the data in different forms. These forms vary from digital colour persistance, analogue intensity and filtering.

Please let me know if you require further clarification.

Best regards,
Michael
Michael - Tech Support
Pico Technology
Web Support Forum
Michael
Zen Master
Zen Master
 
Posts: 656
Joined: Thu Jul 07, 2005 12:41 pm
Location: St Neots, Cambridgeshire

3424 oscilloscope

Postby Roger » Mon Jun 19, 2006 4:55 pm

My expected use is in neurobiology. What I am really interested in is rms noise as a function of frequency below 1kHz, including very low frequencies near DC. This is different from accuracy.
I would like to also extend this question to the 16 bit scope (216?).

Since the 216 uses a parallel port, I have a question about that. I am waiting for Apple to put out a desktop Intel based computer that can run both Windows and MacOSX. It will not have a parallel port, but PCI cards with a parallel port are readily available. Do you think the 216 and software running under Windows will be compatible with such a card?

I am assuming that with the Apple computer running Windows, it will be able to use a USB port with the 3424.
Roger
Active User
Active User
 
Posts: 6
Joined: Sat Jun 17, 2006 11:44 am

Postby Michael » Tue Jun 20, 2006 8:25 am

Hello Roger,

Your application demands lower frequency analysis with greater accuracy. Then by all means consider the ADC216. The interface is Parallel but we also offer a Pico Parallel port adapter which is specific to our products. However, a PCI card would be able to work ok.

The ADC216 has a dynamic range of 96dB with a 1% DC accuracy.

Please let me know if you have any further questions.

Best regards,
Michael
Michael - Tech Support
Pico Technology
Web Support Forum
Michael
Zen Master
Zen Master
 
Posts: 656
Joined: Thu Jul 07, 2005 12:41 pm
Location: St Neots, Cambridgeshire


Return to Pre-Sales Advice

Who is online

Users browsing this forum: No registered users and 0 guests