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S22 Mecatrônica |
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Title:
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DESIGN AND CONSTRUCTION OF A COMPUTERIZED VISCOMETER / RHEOMETER
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Summary :
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A COMPUTERIZED VISCOMETER / RHEOMETER WAS DESIGNED BASED ON A COUETTE CELL
AND A HELICAL SPRING TORQUE METER, BOTH TAKEN FROM AN OBSOLETE COMERCIAL
RHEOMETER. THE APPLICABLE SHEAR RATE IS FROM 50 TO 500 (1/S), THE MEASURABLE
RANGE OF SHEAR STRESS IS FROM 2.7 TO 70 MPA, AND CALCULATED RANGE OF VISCOSITY
IS FROM 5 TO 1400 MPA.S. THE USE OF A STEPPING MOTOR TO DRIVE THE ROTATING BOB
SIMPLIFIES BOTH THE ELECTRONICS AND THE CONTROL PROGRAM. PRELIMINARY RESULTS
WITH LUBRICANT OILS HAVE SHOWN GOOD AGREEMENT WITH LITERATURE DATA.
KEYWORDS: VISCOMETER, RHEOMETER, VISCOSITY, RHEOLOGY, RHEOMETRY
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Author :
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Góes, Luiz Carlos Sandoval
Lucena, Samuel E. de
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Paper View :
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COBEM99
| Organizing Committee | Keynotes
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| Symposia and special sessions
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