Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system
Patent
1996-03-07
1998-06-16
Dougherty, Elizabeth L.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Specified electrical sensor or system
73796, G01B 716, G01L 100
Patent
active
057674027
ABSTRACT:
A material testing machine includes a support structure and a DC brushless linear motor operable to develop a force along a reaction axis. The DC brushless linear motor includes a set of magnets disposed along a line on the support structure parallel to the reaction axis. An elongated member slidably guided by the support structure on the reaction axis includes a plurality of coils proximate the set of magnets. A controller selectively energizes the coils.
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Johnson Scott G.
Morrissette Douglas S.
Mosiman Larry G.
Sandlass Gary S.
Dougherty Elizabeth L.
MTS Systems Corporation
Noori Max H.
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