Measuring and testing – Dynamometers – Responsive to torque
Patent
1979-08-07
1981-08-04
Woodiel, Donald O.
Measuring and testing
Dynamometers
Responsive to torque
G01L 310
Patent
active
042815371
ABSTRACT:
A strain meter includes first and second blocks clamped to a rotating shaft with a linear variable differential transformer (LVDT) rigidly affixed to the first block and a displacement arm rigidly affixed to the second block. A LVDT core is attached to one end of the displacement arm and disposed to be movable without contact through the center of the LVDT. A flexible cable is connected between the displacement arm and the LVDT to control the radial position of the LVDT core. A vertical stabilizing bar is connected between the blocks and includes a cutout section adjacent the second block to allow for necessary flexibility for the second block to follow shaft motion. Information signals generated by the LVDT are telemetered off the shaft to a receiver.
REFERENCES:
patent: 2949029 (1960-08-01), Bayles et al.
patent: 3229514 (1966-01-01), Williams
patent: 3537304 (1970-11-01), Brewer
McNab Incorporated
Woodiel Donald O.
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