Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: Martin Brown <'''newspam'''@nonad.co.uk>
Newsgroups: sci.electronics.design
Subject: Re: Damned Projects!
Date: Sun, 5 Jan 2025 11:22:59 +0000
Organization: A noiseless patient Spider
Lines: 19
Message-ID: <vldq2l$10hr5$1@dont-email.me>
References: <gqarmjlh9gc54qu1mg410hivqqt7vtg0kn@4ax.com>
 <vkl8td$3dho4$1@dont-email.me> <20241227a@crcomp.net>
 <kju84lxb5m.ln2@Telcontar.valinor> <vld6th$3c22c$3@gonzo.revmaps.no-ip.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Sun, 05 Jan 2025 12:23:01 +0100 (CET)
Injection-Info: dont-email.me; posting-host="1c6dce44f7230da9ca7ce4ba7a86f0f9";
	logging-data="1066853"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/SnhcrOU5qOpwPO1gEqg0ds8fXZ57PDpDz8G45jJIaGA=="
User-Agent: Mozilla Thunderbird
Cancel-Lock: sha1:KfAMIcT+ChlDIfTJ3+DO+JiX7Os=
Content-Language: en-GB
In-Reply-To: <vld6th$3c22c$3@gonzo.revmaps.no-ip.org>
Bytes: 1763

On 05/01/2025 05:56, Jasen Betts wrote:
> On 2024-12-29, Carlos E.R. <robin_listas@es.invalid> wrote:
>> On 2024-12-27 20:04, Don wrote:

>>> Electrolysis can cause the DC sensor to degrade over time.
>>
>> Use graphite. Two pencil leads.
> 
> graphite is still eroded.

Not very quickly though so for a sensor where being wet is an immediate 
fault condition I doubt if it really matters. You could always use gold 
plated contacts or if money was no object pure platinum electrodes.

Both of those noble metals are almost impervious to corrosion.

-- 
Martin Brown