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Relaxation modulus sensor, structure incorporating same, and method for use of same

  • US 7,581,450 B2
  • Filed: 10/31/2006
  • Issued: 09/01/2009
  • Est. Priority Date: 10/31/2006
  • Status: Active Grant
First Claim
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1. A sensor for measuring relaxation modulus in a test material, comprising:

  • a frame having an opening therethrough embedded in the test material;

    a driver mounted within the opening of the frame embedded in the test material, the driver comprising one of an electric motor, an electric solenoid, a hydraulic solenoid, a hydraulic cylinder, and a gas operated cylinder;

    a first sensing device in communication with the driver; and

    a second sensing device disposed within a gap between the driver and the frame embedded in the test material.

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