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Ships strain measuring system

  • US 3,354,703 A
  • Filed: 06/27/1963
  • Issued: 11/28/1967
  • Est. Priority Date: 06/27/1963
  • Status: Expired due to Term
First Claim
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1. A DEVICE FOR DETERMINING THE FLEXING STRESS OF A STRUCTURE AT SEA, COMPRISING:

  • A SOURCE OF AC VOLTAGE;

    STRAIN GAGE MEANS, IN CONTACT WITH SAID STRUCTURE AND ELECTRICALLY CONNECTED TO SAID SOURCE OF AC VOLTAGE, FOR MODULATING SAID AC VOLTAGE DIRECTLY IN PROPORTION TO THE STRESSING OF SAID STRUCTURE;

    AMPLIFIER MEANS, ELECTRICALLY CONNECTED TO SAID STRAIN GAGE MEANS, FOR AMPLIFYING SAID MODULATED AC VOLTAGE;

    DEMODULATING MEANS, ELECTRICALLY CONNECTED TO SAID AMPLIFYING MEANS, FOR CONVERTING SAID MODULATED AC VOLTAGE TO A DC VOLTAGE WHICH IS A PROPORTIONAL AND CONTINUOUSLY VALUED REPRESENTATION OF SAID STRESSING OF SAID STRUCTURE;

    FIRST DISPLAY MEANS, ELECTRICALLY CONNECTED TO SAID DEMODULATING MEANS, FOR INDICATING THE MAGNITUDE OF SAID DC VOLTAGE;

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