<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1521130773392_8320" dir="ltr"><span id="yui_3_16_0_ym19_1_1521130773392_8321">For a voltage or current output from a sensor, the change of depth is going to be an issue of resolution that will be determined by the ADC. From that perspective change of depth will be as accurate as the ADC can provide, but "repeatability" may come into play which may affect whether each 1 foot of depth is sensed as an actual 1 foot of depth. There may be some variability but I think in general, the change of depth would be accurate for all intents and purposes.</span></div><div id="yui_3_16_0_ym19_1_1521130773392_8320" dir="ltr"><span><br></span></div><div id="yui_3_16_0_ym19_1_1521130773392_8320" dir="ltr"><span id="yui_3_16_0_ym19_1_1521130773392_8532">Sean may care to comment.</span></div><div id="yui_3_16_0_ym19_1_1521130773392_8320" dir="ltr"><span><br></span></div><div id="yui_3_16_0_ym19_1_1521130773392_8320" dir="ltr"><span><br></span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1521130773392_8253"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1521130773392_8246" style="display: block;"> <div style="font-family: times new roman, new york, times, serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1521130773392_8245"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1521130773392_8244"> <div dir="ltr" id="yui_3_16_0_ym19_1_1521130773392_8243"> <font size="2" face="Arial" id="yui_3_16_0_ym19_1_1521130773392_8252"> <hr size="1"> <b id="yui_3_16_0_ym19_1_1521130773392_8531"><span style="font-weight:bold;" id="yui_3_16_0_ym19_1_1521130773392_8530">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b id="yui_3_16_0_ym19_1_1521130773392_8529"><span style="font-weight: bold;" id="yui_3_16_0_ym19_1_1521130773392_8528">Sent:</span></b> Thursday, March 15, 2018 12:01 PM<br> <b id="yui_3_16_0_ym19_1_1521130773392_8513"><span style="font-weight: bold;" id="yui_3_16_0_ym19_1_1521130773392_8512">Subject:</span></b> [PSUBS-MAILIST] depth gauge<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1521130773392_8514"><br><div id="yiv3883408440"><div id="yui_3_16_0_ym19_1_1521130773392_8517"><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;" id="yui_3_16_0_ym19_1_1521130773392_8516"><div id="yui_3_16_0_ym19_1_1521130773392_8515">Hi all, recently there was talk about a depth gauge. Jon mentioned the accuracy being being a percentage of depth. In an effort to save battery life, I am thinking I should add a digital depth or pressure gauge. My feeling is, if it is accurate in terms of change of depth it would be valuable to have. The question is, is the accuracy short fall a mater of actual depth or change of depth or both? I don't care about actual depth, I just care about change of depth.</div><div id="yui_3_16_0_ym19_1_1521130773392_8518">Hank</div></div></div></div>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></div></body></html>