Low maintenance high pressure viscometer
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United States of America Patent
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Oct 30, 2007
Grant Date -
N/A
app pub date -
Oct 24, 2005
filing date -
Oct 24, 2005
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Viscometer (80) with a rotor (51) rotatable by a coupling magnet (34) and a driving magnet (38) to shear a tested fluid thus imparting torque to a bob (30) mounted on a bob shaft (24) supported via a pair of bob shaft bearings. A spiral spring (70) restricts the rotation of bob shaft (24). Magnetometer (10) measures the angular position of a top magnet (72) connected to the top of bob shaft (24). This angular position information is further converted to the viscosity of the tested fluid.
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