Short description
The malvern "Gemini HR-nano"
rheometer is the state of the art stress-controlled
rheometer from malvern instruments. This instrument is
currently mounted on top of our Noran confocal microscope
for simultaneous imaging and rheology experiments. While it
is mainly dedicated for this purpose, the machine can also
be used for rheology only. The rheometer is situated in the
confocal lab (McKay 519, across the hall from the rheology
lab).
- Integrated into a "optical rheometer" with our Noran
confocal microscope
- Uses same geometries as the bohlin
- Easy to use, many geometries to choose from
- Reliable measurements down to very low torques
(<100 nNm)
- Large torque range without change in motor
settings
Things to remember
-
Turning on the
HR-nano
- bla bla
- bla bla
- bla bla
- bla bla
-
Turning off the
HR-nano
- bla bla
- bla bla
- bla bla
Using the HR-nano
- Get training
-
Reserve it
- If anything unusual happens during use, please ask
one of the people responsible for the rheometers. If the
main air pressure drops below 70 psi,
stop all measurements, do not touch the tools and contact
one of the following emergency contacts:
- Harvard facilities office: (617) 495-2840
- Harvard Police (during the night): (617)
495-1212
Measuring Geometries
All available tools can also
be used on the bohlin C-VOR and the bohlin CS rheometers.
Geometry
|
Dimensions
|
Sample Volume (approx.)
|
Notes
|
|
Parallel plate 60 mm
|
- 60mm Diameter
- Variable Gap
|
.. |
Shear gradient exists across the sample. |
|
Parallel plate 40 mm
|
- 40mm Diameter
- Variable Gap
|
.. |
Shear gradient exists across the sample. |
|
Cone/Plate 4° 40 mm
|
- 40mm Diameter
- Cone Angle: 4º
- Gap: 150 microns
|
.. |
Constant shear profile. |
|
Cone/Plate 1° 30 mm
|
- 30mm Diameter
- Cone Angle: 1º
- Gap: .. microns
|
.. |
Constant shear profile. |
|
Large Couette tool
|
|
.. |
|
|
Small Couette tool
|
|
.. |
|
|
Large Double-Gap Couette tool
|
|
.. |
|
|
Small Double-Gap Couette tool
|
|
.. |
|
Other information
Technical support
