| 摘要 |
A viscometer 1 comprises a synchronous motor having an output connected to a bob through a torque transducer 6 and bearing 7. The transducer 6 includes a spring 12, two arcuate capacitive drive plates 15, 16, an annular capacitive pick-up plate 17 surrounded by ground plates and a screen plate 14 intermediate the drive plates 15, 16 and pick-up plate 17. The pick-up plate 17 is connected to pick-up electronic circuits 20 and the drive plates 15, 16 are connected to drive electronic circuits 21. Rotation of the screen plate 14 provides a signal to the pick-up plate 17 which provides a measure of viscosity. <IMAGE> |
