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Groups > comp.os.linux.misc > #89471
| From | The Natural Philosopher <tnp@invalid.invalid> |
|---|---|
| Newsgroups | comp.os.linux.misc |
| Subject | Re: WiFi range ... |
| Date | 2026-08-02 15:00 +0100 |
| Organization | A little, after lunch |
| Message-ID | <114niil$hecc$2@dont-email.me> (permalink) |
| References | (4 earlier) <114j9ep$34k3s$5@dont-email.me> <XJSdna6bFYjt9PD3nZ2dnZfqnPadnZ2d@giganews.com> <nd5do7Flu8eU12@mid.individual.net> <KR-dnZuVRtVzAPP3nZ2dnZfqnPUAAAAA@giganews.com> <nd8rcgFdbe6U2@mid.individual.net> |
On 02/08/2026 13:26, Carlos E. R. wrote: > On 2026-08-02 03:30, c186282 wrote: >> Now the wet bulb, how the hell do you KEEP it wet ? > > And fungi free? > >> This can be a PROBLEM depending on environment. Where I was, there >> was surely a little rain every 7-10 days. A cheepo reservoir was >> easy to rig. It's also possible to lace the wet cloth with a >> chemical, ammonium nitrate for example, which is extremely >> hydroscopic - but the chosen salt WILL affect the reading and >> compensation will be needed. > > AI Overview: Humidity sensors measure water vapour in the air using capacitive, resistive, or thermal conductivity methods. They track changes in electrical properties or heat patterns when moisture is absorbed. Capacitive Sensors ============ Structure: A moisture-absorbing (hygroscopic) material sits between two metal plates (electrodes). Action: The material absorbs water from the air, which changes its ability to store an electrical charge. Output: The sensor measures this change in capacitance and turns it into a relative humidity percentage. Resistive Sensors =========== Structure: A pair of electrodes is coated with a material like a conductive polymer or salt. Action: Absorbed moisture breaks down into ions, which changes the electrical resistance across the coating. Output: Lower resistance means higher humidity, which the device calculates into a reading. Thermal Conductivity Sensors =================== Structure: Two small heat-producing parts (thermistors) are used. Action: One part is sealed in dry gas while the other is exposed to the air. Output: Moisture in the air cools the exposed part differently than the dry one, and the difference in resistance measures absolute humidity. --------------------------------------------------------------------- Presumably any hygroscopic elements are soaked in fungicide at manufacture -- The difference bweteen a psychopath and a saint is that the psychpoath takes what he can and gives only what he must, but the saint gives everything he can and takes only what he needs.
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Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-05-25 01:46 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-05-25 17:56 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-05-26 01:27 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? TheLastSysop <thelastsysop@dev.null> - 2026-05-26 22:11 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-05-26 23:04 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-05-27 03:21 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-05-27 00:18 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-05-27 07:09 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? Nuno Silva <nunojsilva@invalid.invalid> - 2026-06-04 17:40 +0100
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-04 14:43 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-06-04 23:09 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-04 23:14 -0400
Need for new personal ID numbers Lars Poulsen <lars@beagle-ears.com> - 2026-06-04 20:46 -0700
Re: Need for new personal ID numbers c186282 <c186282@nnada.net> - 2026-06-05 01:29 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-06-05 04:53 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-05 02:13 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? Andy Burns <usenet@andyburns.uk> - 2026-06-05 09:26 +0100
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-05 05:24 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-06-05 17:36 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-06 00:16 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-06-06 06:08 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-06 02:43 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-06-06 20:19 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-07 05:54 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? rbowman <bowman@montana.com> - 2026-06-07 19:43 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? The Natural Philosopher <tnp@invalid.invalid> - 2026-05-27 14:14 +0100
WiFi range ... Lars Poulsen <lars@beagle-ears.com> - 2026-05-31 21:19 -0700
Re: WiFi range ... TheLastSysop <thelastsysop@dev.null> - 2026-06-01 04:26 +0000
Re: WiFi range ... Lars Poulsen <lars@beagle-ears.com> - 2026-06-01 22:44 -0700
Re: WiFi range ... Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-07-31 23:00 +0000
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-07-31 23:34 -0400
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-01 05:15 +0000
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-01 21:30 -0400
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-02 04:13 +0000
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-02 01:23 -0400
Re: WiFi range ... "Carlos E. R." <robin_listas@es.invalid> - 2026-08-02 14:26 +0200
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-02 15:00 +0100
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-02 19:46 +0000
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-02 22:57 -0400
Re: WiFi range ... Robert Komar <robk@robpc4.robk-home.org> - 2026-08-02 11:59 -0400
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-02 19:44 +0000
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-03 00:12 -0400
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-03 12:22 +0100
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-03 20:20 -0400
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-04 11:37 +0100
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-05 01:52 -0400
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-05 13:21 +0100
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-06 02:47 -0400
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-06 13:01 +0100
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-06 19:56 +0000
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-06 22:15 +0100
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-07 03:41 +0000
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-07 12:26 +0100
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-07 18:29 +0000
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-07 21:52 +0100
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-08 04:23 +0000
Re: WiFi range ... "Carlos E.R." <robin_listas@es.invalid> - 2026-08-08 09:07 +0200
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-08 07:50 +0000
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-08 13:11 +0100
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-08 18:02 +0000
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-08 19:05 +0100
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-08 13:08 +0100
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-08 18:31 +0000
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-08 21:22 -0400
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-09 13:55 +0100
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-09 18:03 +0000
Re: WiFi range ... The Natural Philosopher <tnp@invalid.invalid> - 2026-08-09 20:35 +0100
Re: WiFi range ... Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-08-10 03:26 +0000
Re: WiFi range ... c186282 <c186282@nnada.net> - 2026-08-10 00:24 -0400
Re: WiFi range ... rbowman <bowman@montana.com> - 2026-08-06 19:33 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? Andy Burns <usenet@andyburns.uk> - 2026-06-01 08:10 +0100
Re: Recent Experience With RF "Modem-ish" Data Links ? TheLastSysop <thelastsysop@dev.null> - 2026-06-01 07:33 +0000
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-02 01:35 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-02 01:15 -0400
Re: Recent Experience With RF "Modem-ish" Data Links ? Lars Poulsen <lars@beagle-ears.com> - 2026-06-01 22:50 -0700
Re: Recent Experience With RF "Modem-ish" Data Links ? c186282 <c186282@nnada.net> - 2026-06-02 03:04 -0400
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