X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:references:in-reply-to:mime-version :thread-index:date:message-id:subject:to:content-type; bh=yTNo/f6HVQyEXSOTPMS+Z6Xt5joRHzJIRxlduZZ2d7U=; b=Fs/wokJ36az2OXeqWAk8dNJTZxpjOIDjmDbix5vkft4LpSAcr5INd4G4Xrrai43yfs tXs8scNMpvSsZqVr+7p+M4ByibrPlcXSx5axGA60hFXyIMoR0QoWfB4+nOLlc5xkoNLc jphzzMAB9Xgurpou9FUp6JN5B3r769Stdek6toVbeE/fRsHAsPqvzbPB7ThplIepaqhR G1+++M2cScirRYd7HiXb2nCj8WPvhlsyTU26jzjg/zvTR74Z+iHPeFFERJHWj2+yy0Hp Lp+WP5Leaf5JIAdyYybxpOS242qf2F3kyOBzmMvwK6XFF7wFfMTzQwujzFWVETCekqaV uRmQ== X-Gm-Message-State: ALoCoQmq5TtmDNQVy0pLeyDZT7DFeChypojF8JzRB8oRx1OSPONKWELqLKAPb5EpuktGaCVKgInk X-Received: by 10.152.170.199 with SMTP id ao7mr2476748lac.40.1390422401134; Wed, 22 Jan 2014 12:26:41 -0800 (PST) From: Dave Kerber References: In-Reply-To: MIME-Version: 1.0 X-Mailer: Microsoft Office Outlook 11 Thread-Index: Ac8Xrelsu6rZTowwTi+5xdIazBXM/wAAioJA X-MimeOLE: Produced By Microsoft MimeOLE V6.1.7601.17609 Date: Wed, 22 Jan 2014 15:26:39 -0500 Message-ID: <477fdc0ebc39de8555ca0635a18afcaa@mail.gmail.com> Subject: RE: [geda-user] Best way to measure RPMs To: geda-user AT delorie DOT com Content-Type: text/plain; charset=ISO-8859-1 Reply-To: geda-user AT delorie DOT com What level of precision do you need? Just integers, or fractional? What speed range, 0-.2 rpm or 0-10000 rpm? > -----Original Message----- > From: Rob Butts [mailto:r DOT butts2 AT gmail DOT com] > Sent: Wednesday, January 22, 2014 3:01 PM > To: geda-user AT delorie DOT com > Subject: [geda-user] Best way to measure RPMs > > I have a shaft that I want to measure the rpm of. I'm > looking for opinions on the best and cheapest way. The > design is still in development phase so I have freedom. > > Thanks >