Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1985-06-27
1986-10-07
Myracle, Jerry W.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
7386265, G01N 300
Patent
active
046152202
ABSTRACT:
The invention relates to a method of attaining a rigid loading device for simultaneous measuring of small forces and small movements in a testing machine intended for greater forces and movements. According to the invention a preferably annular yoke (20) dimensioned to carry the loading capacity of the testing machine, is applied in the testing machine. By using the well-defined relationship between force and deformation of the yoke, the deformation of a test piece (11) placed within the yoke is measured and controlled. At the same time the force against the test piece is measured by a force transducer (10) also placed within the yoke. The measuring range of said force transducer is chosen to meet the required load capacity for the testing.
REFERENCES:
patent: 2421222 (1947-05-01), Schaevitz
patent: 2612774 (1952-10-01), Zener et al.
patent: 2677190 (1954-05-01), Shaw et al.
patent: 2826062 (1958-03-01), Brown et al.
patent: 3495448 (1970-02-01), Young, Jr.
patent: 3911737 (1975-10-01), Ormond
patent: 4491027 (1985-01-01), Yalof et al.
AB Sandvik Hard Materials
Myracle Jerry W.
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