Robert R Mcmaster

Address:

1804 Lk Shr Dr, Columbus, OH 43204

VIN:

1G1YY26U675131537

Make:

CHEVROLET

Model:

CORVETTE

Year:

2007

US Patent:

45985928, Jul 8, 1986

Filed:

Oct 31, 1983

Appl. No.:

6/546970

Inventors:

Robert C. McMaster - Delaware OH

Assignee:

JACA Corporation - Fort Washington PA

International Classification:

G01M 500

US Classification:

73786

Abstract:

Electrical signals, representative of stress induced in a structure, are developed by a piezoelectric transducer (10) attached to the structure in response to stress changes in the structure caused by loads applied to the structure. The signals storage signals from the electrical signals and the storage are processed by a signal processing circuit (12) to develop signals are accumulated by a storage unit (14) to develop a fatigue condition indication of the cumulative effect of the loads applied to the structure.