The SDT Spinning Drop Tensiometer measures interfacial tension with a high degree of accuracy and a particularly wide range down to very low values. The SDT is the ideal solution for the quality control and development of emulsions and surfactants thanks to its enormous bandwidth, small sample volumes, and simple handling during preparation. The instrument is particularly well-suited for analyzing the interfacial behavior of mini- and microemulsions, e.g. for enhanced oil recovery (EOR) or the pharmaceutical and cosmetics branches.
SDT
Measurement of interfacial tension in a wide range for optimizing emulsions
Description
SPECIFICATIONS
SPECIFICATIONS
Software
| Software type | ADVANCE |
|---|---|
| Software languages | Chinese (simplified), English, French, German, Japanese, Korean, Portuguese, Russian, Spanish |
| Software modules | Interfacial tension of liquids (recommended)
Drop positioning module (optional) Adhesion Analysis (optional) |
Spinning drop
| Results | interfacial tension |
|---|---|
| Range | 1E-6 to 2000 mN/m |
| Resolution | 1E-6 mN/m |
| Models | Vonnegut Young-Laplace |
Sample dimensions
| Min. recommended sample volume | surrounding liquid: 1 mL drop liquid: 1 to 4 μL |
|---|
Instrument dimensions
| Footprint | 360 mm × 240 mm (W × D) |
|---|---|
| Height | 325 mm |
| Weight (without accessories) | 15 kg |
Environment
| Operating temperature | 15 to 30 °C |
|---|---|
| Humidity | without condensation |
Interfaces
| PC | USB 3.0 |
|---|---|
| Auxiliary | RS232 |
| Thermostat | quick couplings |
Housing and peripherals
| Camera parking system | protecting the camera when not in use |
|---|---|
| Touch panel | glass surface with capacitive sensing |
Power supply
| Voltage | 100 to 240 V |
|---|---|
| Power consumption | max. 250 W |
| Frequency | 50 to 60 Hz |
Temperature measurement
| Range | -10 to 180 °C |
|---|---|
| Resolution | 0.1 °C |
| Precision | ±0.1 °C |
| Locations | heating element (internal sensor) capillary (infrared sensor) |
Temperature control
| Type of temperature control | electric (ambient to 120 °C) liquid (-10 to 120 °C, with optional flow-through thermostat) |
|---|---|
| Range of temperature control | -10 to 120 °C |
Capillary
| Septum free filling system | for easy sample preparation |
|---|---|
| Quick lock loading | for fast sample exchange |
| Drop launch mechanism | drop creation at the press of a button |
Camera system (standard)
| Connection | USB 3.0 |
|---|---|
| Performance | 15 fps at 2560 × 1920 px |
Optics (standard)
| Focus | fixed |
|---|---|
| Zoom | 1.4× zoom, fixed |
| Field of view | 6 mm × 4.5 mm |
| Resolution of optics | 2.3 µm |
Illumination
| Types | high power monochromatic LED and stroboscope |
|---|---|
| Wave length, dominant | 469 nm |
| Field of light | 57 mm × 7 mm (D × H) |
Sample stage
| Tilting | ±20° |
|---|---|
| Resolution (tilting) | 0.1° |
Capillary drive
| Resolution | 0.1 rpm |
|---|---|
| Long term stability | ±1 rpm |
Shipping & Delivery
