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Article #2351Re: LM35 Temperature Sensor Design Help - LM35 circuit.bmp (1/1)
From: David Lesher
Date: Mon, 17 Feb 2003 17:46
Date: Mon, 17 Feb 2003 17:46
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"Antony N. Lord" <antony_lordX@hotmail.com> writes: >> Actually, the LM35 and variants are more accurate than most commercial >> thermometers; one has to shell out a fairly good chunk of change to get >> a calibrated thermometer as good as or better than these ICs. >> No calculations, lines of best fit, or any other trash like that. >I suppose that is true - but surely there has to be calculations / >adjustments made due to voltage loss etc. in the cable run between the >sensor and the interface. I'm missing the original post, but I installed about a dozen LM35's several years ago. The data sheet had a spiffy current loop scheme that solved that issue. The price was some fixed error that you could easily offset in software if need be. (We ignored it as we were concerned about delta, not absolute, data.) -- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 112d1e,c633630f27d8aa83 X-Google-Attributes: gid112d1e,public X-Google-Thread: 103407,c633630f27d8aa83 X-Google-Attributes: gid103407,public X-Google-ArrivalTime: 2003-02-17 09:46:23 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!bloom-beacon.mit.edu!panix!wb8foz From: David Lesher <wb8foz@panix.com> Newsgroups: sci.electronics.design,aus.electronics Subject: Re: LM35 Temperature Sensor Design Help - LM35 circuit.bmp (1/1) Date: Mon, 17 Feb 2003 17:46:21 +0000 (UTC) Organization: NRK Clinic for habitual NetNews Abusers - Beltway Annex Lines: 23 Message-ID: <b2r75d$951$1@reader1.panix.com> References: <antony_lordX-291B79.18134130122002@mec2.bigpond.net.au> <3E11569A.407F57C6@earthlink.net> <antony_lordX-383E5A.22443202012003@mec2.bigpond.net.au> Reply-To: wb8foz@nrk.com (David Lesher) NNTP-Posting-Host: panix5.panix.com X-Trace: reader1.panix.com 1045503981 9377 166.84.1.5 (17 Feb 2003 17:46:21 GMT) X-Complaints-To: abuse@panix.com NNTP-Posting-Date: Mon, 17 Feb 2003 17:46:21 +0000 (UTC) User-Agent: nn/6.6.4