Hi: What is the smallest physically-possible voltage that can be detected or processed given the state of today's technology? Thanks
What is the smallest physically-possible voltage that can be detected or processed given the state of today's technology?
Started by ●June 1, 2009
Reply by ●June 1, 20092009-06-01
On Mon, 1 Jun 2009 17:15:19 -0700 (PDT), GreenXenon <glucegen1x@gmail.com> wrote:>Hi: > >What is the smallest physically-possible voltage that can be detected >or processed given the state of today's technology? > > >ThanksYou can buy nanovoltmeters that will resolve a couple of hundred picovolts, if you're careful. Superconductive SQUID detectors can measure a picovolt. Single-electron transistors can sense, well, single electrons. John
Reply by ●June 1, 20092009-06-01
On Mon, 1 Jun 2009 17:15:19 -0700 (PDT), GreenXenon <glucegen1x@gmail.com> wrote:>Hi: > >What is the smallest physically-possible voltage that can be detected >or processed given the state of today's technology? > > >ThanksYou can buy nanovoltmeters that will resolve a couple of hundred picovolts, if you're careful. Superconductive SQUID detectors can measure a picovolt. Single-electron transistors can sense, well, single electrons. John
Reply by ●June 1, 20092009-06-01
On Mon, 1 Jun 2009 17:15:19 -0700 (PDT), GreenXenon <glucegen1x@gmail.com> wrote:>Hi: > >What is the smallest physically-possible voltage that can be detected >or processed given the state of today's technology? > > >ThanksYou can buy nanovoltmeters that will resolve a couple of hundred picovolts, if you're careful. Superconductive SQUID detectors can measure a picovolt. Single-electron transistors can sense, well, single electrons. John
Reply by ●June 1, 20092009-06-01
On Jun 1, 5:15�pm, GreenXenon <glucege...@gmail.com> wrote:> Hi: > > What is the smallest physically-possible voltage that can be detected > or processed given the state of today's technology? > > ThanksGo bugger yourself, you spamming pile of shit.
Reply by ●June 1, 20092009-06-01
On Mon, 01 Jun 2009 17:40:20 -0700, John Larkin <jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:> >Single-electron transistors can sense, well, single electrons. > >JohnPMTs can be good enough to detect single photon events.
Reply by ●June 2, 20092009-06-02
On Jun 1, 4:15�pm, GreenXenon <glucege...@gmail.com> wrote:> Hi: > > What is the smallest physically-possible voltage that can be detected > or processed given the state of today's technology? > > ThanksOh my god please fuck off from sci.physics. We do not want you.
Reply by ●June 2, 20092009-06-02
On Jun 1, 10:33�pm, ItsASecretDummy <secretasian...@thebarattheendoftheuniverse.org> wrote:> On Mon, 01 Jun 2009 17:40:20 -0700, John Larkin > > <jjlar...@highNOTlandTHIStechnologyPART.com> wrote: > > >Single-electron transistors can sense, well, single electrons. > > >John > > � PMTs can be good enough to detect single photon events.Hmmm... I have a $35 digital multimeter that can measure exactly 0 volts! Rick
Reply by ●June 2, 20092009-06-02
rickman wrote:> > On Jun 1, 10:33 pm, ItsASecretDummy > <secretasian...@thebarattheendoftheuniverse.org> wrote: > > On Mon, 01 Jun 2009 17:40:20 -0700, John Larkin > > > > <jjlar...@highNOTlandTHIStechnologyPART.com> wrote: > > > > >Single-electron transistors can sense, well, single electrons. > > > > >John > > > > PMTs can be good enough to detect single photon events. > > Hmmm... I have a $35 digital multimeter that can measure exactly 0 > volts!No, it can't. It can display zero, even with some voltage at the input. The issues is the resolution of the meter. Even with the probes shorted, you will have some Johnson noise which is generated by the resistors in the input circuitry, if the meter is above absolute zero degrees. That voltage is too low to be displayed, but it is still there. -- You can't have a sense of humor, if you have no sense!
Reply by ●June 2, 20092009-06-02
Eric Gisse wrote:> > On Jun 1, 4:15 pm, GreenXenon <glucege...@gmail.com> wrote: > > Hi: > > > > What is the smallest physically-possible voltage that can be detected > > or processed given the state of today's technology? > > > > Thanks > > Oh my god please fuck off from sci.physics. We do not want you.Just kill file the idiot. If no one replies, they will give up. Trolls thrive on attention, so you have to starve them. -- You can't have a sense of humor, if you have no sense!
