Immersible thermal mass flow meter

  • US 6,971,274 B2
  • Filed: 04/02/2004
  • Issued: 12/06/2005
  • Est. Priority Date: 04/02/2004
  • Status: Active Grant
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First Claim
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1. An apparatus for use in a mass flow meter for immersion in a fluid, comprising:

  • a velocity sensor element comprising an elongate body for extending into the fluid, said elongate body comprising a housing shell, a distal end of said housing shell receiving and closely holding a spacer therein, said spacer comprising a solid body of metal receiving and closely holding a thin-film Resistance Temperature Detector (RTD) sensor therein, said sensor comprising an active area and electrical leads to carry current to said active area from a proximal end of said shell, said active area in substantially gap-free contact with an internal abutting spacer area.

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