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Pressure transducer

  • US 4,776,219 A
  • Filed: 04/06/1987
  • Issued: 10/11/1988
  • Est. Priority Date: 04/06/1987
  • Status: Expired due to Fees
First Claim
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1. A pressure transducer including, in combination:

  • (a) a housing portion provided with an opening at an outer end thereof;

    (b) a circular, disc-shaped first diaphragm having a central, first flexing portion and mounted in said housing such that an outer face of the flexing portion is exposed through said opening;

    (c) the first flexing portion of said first diaphragm having an inner face provided with a first strain gauge;

    (d) a support plate member secured to said housing portion and adapted to support the first diaphragm to prevent overstressing thereof on extreme pressures;

    (e) first transducing means for transmitting a signal produced by the first strain gauge; and

    (f) a layer of resilient, rubber-like material sandwiched between the flexing portion of the first diaphragm and the support plate member for transmitting the flexure of the flexing portion of the first diaphragm, due to pressures at said opening, from said first diaphragm to said support plate member.

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