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High pressure transducer

  • US 4,819,487 A
  • Filed: 05/28/1987
  • Issued: 04/11/1989
  • Est. Priority Date: 01/07/1985
  • Status: Expired due to Term
First Claim
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1. A pressure transducer comprising;

  • an elongated frame having an elongated passage therethrough,a capillary tube extending through the frame passage and terminating at one end adjacent one end of the frame,a coupler at said one end of the frame and defining with the frame a chamber in communication with the capillary tube,a sensing member disposed at the other end of the frame and having a passage therein for receiving the capillary tube,said sensing member and capillary tube defining therebetween a sensing chamber formed between said sensing member passage and said capillary tube,a liquid filling the capillary tube and sensing chamber,said sensing member further having means defining a sensing surface forming a relatively thin wall adjacent said sensing chamber,and means for sensing pressure at said wall.

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