Rheometer ARG TA
| Make: | TA Instruments |
| Model: | ARG2 |
| Year of purchase: | 2008 |
| Funded by: | |
| Location: | Arkavathi |
| Contact email: | |
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- Combined motor and transducer (CMT) design
- Magnetic thrust bearing and drive shaft with optical encoder which gives ultra-nano torque control down to 3nNm.
- Torque range:
- - Max: 200 mN.m
- - Min: 3 nN.m (oscillatory); 10 nN.m (steady state);
- Frequency range: 0.12 μHz to 100 Hz
- Angular velocity range:
- - 0 to 300 rad /s (controlled stress mode)
- - 1.4 E-9 to 300 rad /s (controlled strain mode)
- Angular displacement resolution: 25 nRad
- Min time step for strain change: 30 ns
- Min time step for velocity change: 7 ms
- Normal force range: 0.5 g to 500 g
- Temperature control:
- - Peltier plate and counter cooling system;
- - Range: -20 OC to 200 OC; heating rate: upto 20 OC /min;
- - Resolution: 0.01 OC stability: +/- 0.1 OC.
- Can be operated in both stress (torque) controlled and strain (displacement) controlled modes
- Oscillatory rheology:
- -strain dependence; frequency dependence; time dependence
- Creep test; temperature ramp
- Steady state rheology:
- -continuous shear ramp, time dependent flow behavior, yield stress measurement, temperature ramp
- Compatible samples:
- -soft solids, liquid crystals, gels, polymer melts, resins, oils, pastes etc, with shear modulus over a wide range, i.e. ~ 5 Pa to ~ 10 GPa.
| Modes | Duration (hrs) |
|---|---|
| Oscillatory | 3 hr |
| Steady state | 2 hr |
| Sl. No. - Category | Fees ( in Rs/- ) + additional 18% GST |
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