Date: Wed, 27 Nov 1996 09:32:39 +1030 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: terry@lambert.org (Terry Lambert) Cc: chat@freebsd.org Subject: Re: SCSI A/V drives Message-ID: <199611262302.JAA04660@genesis.atrad.adelaide.edu.au> In-Reply-To: <199611261758.KAA25292@phaeton.artisoft.com> from Terry Lambert at "Nov 26, 96 10:58:34 am"
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Terry Lambert stands accused of saying: > > So the calibration factor is actually a function which can't be > > predicted by a single point. Fair enough, although it would seem that > > the calculations could be made from the data acquired during the > > normal seeks, whether it's a single factor, multiple coefficients, > > or a lookup table. > > It *could* be predicted, if they stored a thermister value at format > time. Presuming you could get an accurate enough sensor close enough to the platters, and presuming that their expansion is linear across the disk surface. Only you can't, and it isn't. And it's "thermistor", or in the case where you're trying to be accurate it's a PT100 or a thermocouple. 8) > Terry Lambert -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[
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