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    Acoustic/Magnetic Stress Sensor (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: High-resolution sensor fast, portable, does not require permanent bonding to structure. Sensor measures nondestructively type (compressive or tensile) and magnitude of stresses and stress gradients present in class of materials. Includes precise high-resolution acoustic interferometer, sending acoustic transducer, receiving acoustic transducer, electromagnet coil and core, power supply, and magnetic-field-measuring device such as Hall probe. This measurement especially important for construction and applications where steel is widely used. Sensor useful especially for nondestructive evaluation of stress in steel members because of portability, rapid testing, and nonpermanent installation.
    Keywords: MECHANICS
    Type: LAR-13320 , NASA Tech Briefs (ISSN 0145-319X); 10; 2; P. 112
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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