On Wed, 12 Nov 1997, J.Adams wrote: > Rick, > > A 40Khz sound wave has a wavelength of .33 inches so I am not sure > if you can get much better resolution then .33 inches. Maybe I am > wrong on this - Does anyone else dispute this? PTM: Use phase lock to get more decimals :) -------------------------------------------------------------------------- PTM, pasi.mustalahti@utu.fi, ptmusta@utu.fi, http://www.utu.fi/~ptmusta Lab.ins. (mikrotuki) ATK-keskus/Mat.Luon.Tdk OH1HEK Lab.engineer (PC support) Computer Center OI7234 Mail: Turun Yliopisto / Fysla, Vesilinnantie 5, 20014 Pt 02-3336669, FAX 02-3335632 (Pk 02-2387010, NMT 049-555577) --------------------------------------------------------------------------