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Ultrasonic path bundle and systems

  • US 5,962,790 A
  • Filed: 06/18/1997
  • Issued: 10/05/1999
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Term
First Claim
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1. An ultrasonic measuring system characterized by an enhanced signal path comprising a signal conductor interposed as a link in the signal path to conduct an ultrasonic measurement signal pulse at least partway between a transducer and a process fluid environment, wherein the signal conductor includesa plurality of rods each having a first end, a second end and a defined diameter and length, said diameter being sufficiently small to propagate an effective measurement portion of the signal pulse between its first end and its second end, anda terminating sheet of material continuous with said first ends and configured to acoustically couple said effective measurement signal portion into and out of said rodswherein the rods are bundled together in tight mutual contact within a sealing enclosure together with said terminating sheet of material to form a rigid sealed assembly for mounting in the transducer signal path such that the assembly conducts and couples a directed beam of said effective measurement signal portion between said process fluid environment and said transducer while providing both thermal separation of and effective sealing between the transducer and the fluid environment.

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