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来自「RFID 開發常見問題集,超過50個線上問題解答,詳細陳列」· HTM 代码 · 共 73 行
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<html> <head> <title>RFID-Bulletin Board: Re: read tag over water for submerged pomps, Wendy Ladek at 2/29/2000 02:59</title> <!-- Anfang Header --><!-- Ende Header --> </head> <BODY BGCOLOR="#fffcf4"><!-- Anfang BeitragsseitenKopf --><!-- Ende BeitragsseitenKopf --><!-- AnfangBanner --><!-- EndeBanner --><blockquote> <center> <h1>Re: read tag over water for submerged pomps</h1> </center><!-- Anfang BeitragsNavigationsLeisteOben --><!-- AnfangLinie --><center><p><HR></p></center><!-- EndeLinie --><center><P><B>[ <a href="../index.htm">RFID-Bulletin Board</a> ]</B></P></center><!-- AnfangLinie --><center><p><HR></p></center><!-- EndeLinie --><!-- Ende BeitragsNavigationsLeisteOben --><p>Written by <a href="mailto:xciinceng@aol.com">Wendy Ladek</a> at 29 Feb 2000 02:59:25:<p>As an answer to: <a href="18.htm">read tag over water for submerged pomps</a> written by ELHARIRY at 10. July 1999 at 14:54:51:<p>>I m searching for active tags wich can be read over water (up to 200 m !), it is needed for submerged pomps, <p><br>I do not believe that the "black magic" of "standard" RFID technology, being used for identification purposes, allows for frequencies as low as those you would need read through water... especially at that depth. Your pumps would have to be inductively read, with frequencies in the 100 kilohz range.<br><br><!-- AnfangLinie --><center><p><HR></p></center><!-- EndeLinie --><form method=POST action="http://f16.parsimony.net/forum26490/wwwforum.cgi?formular"><input type=hidden name="followup" value="18,65"><input type=hidden name="origname" value="Wendy Ladek"><input type=hidden name="origemail" value="xciinceng@aol.com"><input type=hidden name="origsubject" value="Re: read tag over water for submerged pomps"><input type=hidden name="origdate" value="29 Feb 2000 02:59:25"><input type=hidden name="subject" value="Re: read tag over water for submerged pomps"><input type=hidden name="body" value=">>I m searching for active tags wich can be read over water (up to 200 m !), it is needed for submerged pomps, >>I do not believe that the "black magic" of "standard" RFID technology, being used for identification purposes, allows for frequencies as low as those you would need read through water... especially at that depth. Your pumps would have to be inductively read, with frequencies in the 100 kilohz range."><input type="submit" name="abschicken" value="Write an answer"> <br><!-- AnfangLinie --><center><p><HR></p></center><!-- EndeLinie --><p><a name="followups"><B>Answers:</B></a><br><ul><!--insert: 65--></ul><!--end: 65--><!-- AnfangLinie --><center><p><HR></p></center><!-- EndeLinie --><p><!-- AnfangButton --><!-- EndeButton --><p><!-- AnfangLinie --><center><p><HR></p></center><!-- EndeLinie --><center>[ <a href="../index.htm">RFID-Bulletin Board</a> ]</center></blockquote><!-- Anfang BeitragsseitenFuss --><!-- Ende BeitragsseitenFuss --></body></html>⌨️ 快捷键说明
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