RHEOLOGICAL MEASUREMENT DEVICES

摘要

The invention relates to a rheology unit for use in rheology and in Rheo-NMR. The rheology unit has a drive shaft unit that is adapted to attach to an analysis device via a threaded connection to substantially minimise or eliminate mechanical backlash between the drive shaft unit and analysis device

主权项

1. A rheology unit having a drive shaft unit comprising:
a two part drive shaft comprising a primary shaft having a first end and a second end, and an extension shaft having a first end and a second end, the first end of the extension shaft being coupled to the second end of the primary shaft; a two part drive shaft housing for housing the drive shaft, the drive shaft housing comprising a primary housing having a first end and a second end and an extension housing also having a first end and a second end, wherein the first end of the extension housing is attached to the second end of the primary housing; a motor for rotating the drive shaft within the drive shaft housing; a positioning sensor for sensing the position of the drive shaft relative to the drive shaft housing; and a control system for controlling the speed, frequency, and/or direction of rotation of the drive shaft; wherein the extension shaft is concentrically supported within the extension housing and the extension housing is adapted to attach to an analysis device through a threaded connection that allows the analysis device to substantially align with the drive shaft housing.