Measuring and testing – Specimen stress or strain – or testing by stress or strain...
Patent
1989-10-19
1991-01-22
Myracle, Jerry W.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
204407, G01B 530
Patent
active
049861301
ABSTRACT:
Apparatus and method for monitoring stress in a coating of material. The apparatus has a fluid-filled chamber and a deformable diaphragm on which the coating is applied forming a wall of the chamber, the fluid, which is generally incompressible, having a pressure due to pressing of the diaphragm against the fluid which is indicative of stress in the coating. The apparatus also includes a pressure transducer in communication with the fluid for sensing the fluid pressure and converting the fluid pressure to electrical signals whereby the electrical signals are indicative of the stress in the coating of material.
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Engelhaupt Darell E.
Irlesberger Kurt H.
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