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Path: ...!feed.opticnetworks.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> Newsgroups: sci.electronics.design Subject: Re: A collection of monographs on high accuracy electronics Date: Mon, 10 Jun 2024 00:29:17 -0000 (UTC) Organization: A noiseless patient Spider Lines: 54 Message-ID: <v45hct$3tldi$1@dont-email.me> References: <33c76j1cr78uhuk3djabivck4gbpe4dq9i@4ax.com> <v44n6p$3l18b$1@news.eternal-september.org> <v44qqi$3lquc$3@dont-email.me> <v44r4j$3mhiv$1@dont-email.me> <f9fc6j9c24haru81rkduufhjur42vbr53f@4ax.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Mon, 10 Jun 2024 02:29:18 +0200 (CEST) Injection-Info: dont-email.me; posting-host="8dc7bf7ea0a82582a68cceed22911585"; logging-data="4117938"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19tqTO+ve/91P00UtO0ppXs" User-Agent: NewsTap/5.5 (iPhone/iPod Touch) Cancel-Lock: sha1:CHP0Dr6aqQ7Gc/FJ3MWrAKZ9nic= sha1:H/67SNfKd9l+nfMWnV5+pMjxWhE= Bytes: 2908 JM <sunaecoNoSpam@gmail.com> wrote: > On Sun, 9 Jun 2024 18:09:24 -0000 (UTC), Phil Hobbs > <pcdhSpamMeSenseless@electrooptical.net> wrote: > >> Jeroen Belleman <jeroen@nospam.please> wrote: >>> On 6/9/24 19:02, ehsjr wrote: >>>> On 6/7/2024 9:14 PM, JM wrote: >>>>> A collection of monographs on high accuracy electronics written by Mr. >>>>> Chris Daykin, following his career predominantly in metrology. >>>>> >>>>> Unfortunately Chris will be unable to complete the unfinished >>>>> monographs (having started end of life care) but there is plenty of >>>>> interest to any analogue engineer. >>>>> >>>>> https://1drv.ms/b/c/1af24d72a509cd48/EZhO_rP5-glDmxtc4ZHycvYBhrsqmyC5tuZjt2NFFsS0gQ?e=Wq2Yj0 >>>> >>>> >>>> Thanks! >>>> Ed >>> >>> I have an issue with his definition of resistor noise power >>> as the product of open-circuit noise voltage and short-circuit >>> current. That makes no sense. >>> >>> There's more than that, probably, but that just jumped out at >>> me. >>> >>> Jeroen Belleman >>> >> >> Its four times too high, for a start. >> >> Cheers >> >> Phil Hobbs > > "It is shown elsewhere [1] that the noise power is four times the heat > energy which would flow down the conductors > from a warm source resistor to a matching cold resistor." > Which, if true, would solve all our energy problems, except that thermodynamic systems would all be unstable. The thermal noise power produced by a resistor into a matched load is kT per hertz. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics