Low-cost high precision twisting measuring device

Details Low-cost high precision twisting measuring device Low-cost high precision twisting measuring device

2006-08-15

2006-08-15

Noori, Max (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

Reexamination Certificate

active

07089807

ABSTRACT:
A low-cost high precision twisting measuring device comprising a tool body; the tool body comprises a handle having a display; at least one end of the handle having a driving portion; each connection between the handle and each driving portion having a piezoelectric ceramic sensor; the piezoelectric ceramic sensor being connected to the display through a conductor; the piezoelectric ceramic sensor serving to convert mechanical power due to operation of the spanner into electric power with a form of voltage signals; the voltage signal being transferred to the display through the conductor.

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patent: 5589644 (1996-12-01), Becker et al.
patent: 5769781 (1998-06-01), Chappuis
patent: 6463811 (2002-10-01), Putney
patent: 6569108 (2003-05-01), Sarvazyan et al.
patent: 6784799 (2004-08-01), Hsien

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