USB function generators?
in [Design]
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From: Joerg on 7 May 2010 17:13 Gents, Unless it rains on Sunday and I have some time I might just junk this dreaded Wavetek Model 23 generator. Looked around for USB-based generators and found a nice li'l scope/gen combo: http://www.allspectrum.com/store/product_info.php?products_id=2778 Not a lot of info, seems it has no galvanic isolation from the computer like some others <knuckles turning white ...>. However, unlike many others it does go down to 5 millihertz so can be used in machine, stress and vibration testing which I need to do at times. What do thee think? -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Nico Coesel on 7 May 2010 19:05 Joerg <invalid(a)invalid.invalid> wrote: >Gents, > >Unless it rains on Sunday and I have some time I might just junk this >dreaded Wavetek Model 23 generator. Looked around for USB-based >generators and found a nice li'l scope/gen combo: > >http://www.allspectrum.com/store/product_info.php?products_id=2778 > >Not a lot of info, seems it has no galvanic isolation from the computer >like some others <knuckles turning white ...>. However, unlike many >others it does go down to 5 millihertz so can be used in machine, stress >and vibration testing which I need to do at times. > >What do thee think? USB isolators are probably not expensive. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico(a)nctdevpuntnl (punt=.) --------------------------------------------------------------
From: Joerg on 7 May 2010 19:17 Nico Coesel wrote: > Joerg <invalid(a)invalid.invalid> wrote: > >> Gents, >> >> Unless it rains on Sunday and I have some time I might just junk this >> dreaded Wavetek Model 23 generator. Looked around for USB-based >> generators and found a nice li'l scope/gen combo: >> >> http://www.allspectrum.com/store/product_info.php?products_id=2778 >> >> Not a lot of info, seems it has no galvanic isolation from the computer >> like some others <knuckles turning white ...>. However, unlike many >> others it does go down to 5 millihertz so can be used in machine, stress >> and vibration testing which I need to do at times. >> >> What do thee think? > > USB isolators are probably not expensive. > In this case it would be a bit more challenging because the thing is also supplied via the USB jack. I could fix that, but ideally I'd like something I can plug in and it just works. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Martin Riddle on 7 May 2010 19:43 "Joerg" <invalid(a)invalid.invalid> wrote in message news:84jlc9F5giU1(a)mid.individual.net... > Nico Coesel wrote: >> Joerg <invalid(a)invalid.invalid> wrote: >> >>> Gents, >>> >>> Unless it rains on Sunday and I have some time I might just junk >>> this dreaded Wavetek Model 23 generator. Looked around for USB-based >>> generators and found a nice li'l scope/gen combo: >>> >>> http://www.allspectrum.com/store/product_info.php?products_id=2778 >>> >>> Not a lot of info, seems it has no galvanic isolation from the >>> computer like some others <knuckles turning white ...>. However, >>> unlike many others it does go down to 5 millihertz so can be used in >>> machine, stress and vibration testing which I need to do at times. >>> >>> What do thee think? >> >> USB isolators are probably not expensive. >> > > In this case it would be a bit more challenging because the thing is > also supplied via the USB jack. I could fix that, but ideally I'd like > something I can plug in and it just works. > We bought a few of the Keterex boxes. They work well. <http://www.mouser.com/ProductDetail/Keterex/KXUSB-150/?qs=%2fRwqiB95gejWb5h7F1VyFQ%3d%3d> Cheers
From: Joerg on 7 May 2010 19:47
Martin Riddle wrote: > "Joerg" <invalid(a)invalid.invalid> wrote in message > news:84jlc9F5giU1(a)mid.individual.net... >> Nico Coesel wrote: >>> Joerg <invalid(a)invalid.invalid> wrote: >>> >>>> Gents, >>>> >>>> Unless it rains on Sunday and I have some time I might just junk >>>> this dreaded Wavetek Model 23 generator. Looked around for USB-based >>>> generators and found a nice li'l scope/gen combo: >>>> >>>> http://www.allspectrum.com/store/product_info.php?products_id=2778 >>>> >>>> Not a lot of info, seems it has no galvanic isolation from the >>>> computer like some others <knuckles turning white ...>. However, >>>> unlike many others it does go down to 5 millihertz so can be used in >>>> machine, stress and vibration testing which I need to do at times. >>>> >>>> What do thee think? >>> USB isolators are probably not expensive. >>> >> In this case it would be a bit more challenging because the thing is >> also supplied via the USB jack. I could fix that, but ideally I'd like >> something I can plug in and it just works. >> > > We bought a few of the Keterex boxes. They work well. > <http://www.mouser.com/ProductDetail/Keterex/KXUSB-150/?qs=%2fRwqiB95gejWb5h7F1VyFQ%3d%3d> > That could work, if it's happy with 400mA. Unfortunately a lot of stuff these days exceeds even the max load of 500mA, in particular disk drives. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |