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Our innovative m-VROC® & microVISC™viscometers feature patented Viscometer/Rheometer-on-a-Chip (VROC®) technology. Utilizing state-of-the-art MEMS and microfluidics breakthroughs that redefine the viscometry industry, our instruments offer the smallest sample volume per measurement coupled with exceptional ease-of-use and accuracy.
Founded in 2001, we have become the leader in biotechnology, pharmaceutical, and the emerging protein therapeutics industries. RheoSense instruments have been rigorously tested, approved, and adopted worldwide by Fortune Global 500 companies and leading research universities.
microVISC™ — Portable, Small Sample Viscometer
Automatic, High Throughput Viscometer
m-VROC™ Viscometer — Controlled shear rates and small samples
microVISC™ — Portable, Small Sample Viscometer
microVISC™ is the ultimate solution for your routine viscosity measurements. This portable and small sample viscometer is intuitively designed so that users can start operating within one minute. It employs RheoSense's patented Viscometer/Rheometer-on-a-Chip (VROC®) technology and offers accurate and repeatable viscometry measurements, using sample size as little as 100 microliters.
Battery-operated and portable, microVISC™ can be deployed at any laboratory location or in the field. microVISC™ has been adopted by leading companies worldwide as their choice for quick, easy, and rapid viscometric measurements. High precision and accuracy saves time and resources.
Main features
Ease-of-Use
Small Sample Volumes
Rapid Viscosity Measurements (Less than One Minute!)
Accuracy Up to 2% of Reading — Low Viscosity to High Viscosity
Repeatable Viscosity Measurement, 0.5% of Reading
Reading Resolution x 0.001 mPa-s
Portable — Weighs only 1.6 lb
Standard Certification
Compliant with USP
Application
Understanding Fluid Behavior — Measuring Absolute Viscosity
With VROC® Technology, RheoSense took the standard principles of rheometry and created a dynamic micro-sample viscometer by adding microfluidics while reducing the size of the device with MEMS (micro-electrical mechanical systems) manufacturing. The result was a new platform which offers capabilities that are well beyond the limits of conventional viscometers in not only the sample volumes required, but the measurement range and precision.
Scientific Principle
The measuring cell or “chip” contains a rectangular slit flow channel constructed of borosilicate glass, with a uniform cross-sectional area. The sample is injected at a constant flow rate though the flow channel where multiple pressure sensors mounted within the base monitor the pressure drop from the inlet to the outlet. The pressure drop is correlated with the shear-stress at the boundary wall. The shear rate and shear stress are directly related to the geometry of the rectangular slit and the flow rate which allow for viscosity measurements.
Specification
Portable and Small Sample Viscometer: microVISC
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Minimum Sample Volume
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100 µL
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Shear Rate Range, s-1
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1.7 ~ 5,800
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Viscosity Range, mPa-s (cP)
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0.2 ~ 20,000
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Temperature Range
(with Optional Temperature Controller) |
18 ~ 50 °C
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Portable
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Yes
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Accuracy
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2% of Reading
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Repeatability
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0.5% of Reading
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Temperature Sensor |
Built-In
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Software
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Optional - Capabilities export data into excel & PDF
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Non-Newtonians?
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Yes
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Temperature Accuracy
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0.15
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Automatic, High Throughput Viscometer
VROC® initium is the leading automatic viscometer that measures true viscosity with the highest accuracy and repeatability. Its superior resolution makes it possible to measure hydrodynamic size and to quantify particle-particle interactions and protein stability
Main Features
The First Automatic, High Throughput Viscometer
• Sample volume as low as 26 μL
• Shear rate/temperature sweep
• Sample recovery
• 96 well plate/40 vial rack
• Viscosity range: 0.5 - 1,000 mPa-s
• 4 - 70 °C
• Easy to use
Standard Certification
Compliant with USP
Application
Microfluidic devices offer deals precise control over the flow characteristics and reduce the volume required for measurements. Note that the device volume is only about 1.5 . Additionally microfluidic devices enable high throughput measurement and versatility to reduce cost.
MEMS device integrate mechanical elements, sensors, actuators, and electronics on a common silicon substrate, using micro-fabrication technology to allow for very high precision and a very small scale.
The combination microfluidics and MEMS technologies, has enabled RheoSense to redefine viscometry and develop smaller, smarter, and faster micro-liter viscometers, which can measure fluids' viscosity in a wide range of conditions. As a result, VROC® technology offers capabilities well beyond the limits of conventional viscometers.
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Specification
VROC Initium: Product Highlight
m-VROC™ Viscometer — Controlled shear rates and small samples
m-VROC™ is the leading automated, small sample viscometer used worldwide by Fortune Global 500 companies and leading research universities. Capable of the most demanding applications including small sample protein therapeutics, m-VROC™ features the widest dynamic range (high shear rate viscosity measurements up to 1,400,000 s-1) with as little as 20 microliters of sample.
Main Features
• Accuracy: 2% of Reading
• Repeatability: 0.5% of Reading
• Viscosity Range: 0.2 ~ 100,000 mPa-s (or cP)
• Shear Rate Range: 0.5 ~ 1,400,000 s -1
• Small Sample Volume: 20 µL +
• Viscometer Dimensions: 10" x 15.5" x 7"
Standard Certification
Compliant with USP
Application
| m-VROC™ Viscometer — Controlled shear rates and small samples |
 |
Specification
| Minimum Sample Volume | 20 µL |
|---|---|
| Maximum Shear Rate, s-1 | 0.5 ~ 1,400,000 s-1 |
| Viscosity Range, mPa-s (cP) | 0.2 ~ 100,000 cP |
| Temperature Range* | 4~70 o C |
| Accuracy | 2% of Reading |
| Repeatability | 0.5% of Reading |
| Temperature Sensor | Built-In |
| Software | Included |
| Non-Newtonians? | Yes! |
| Temperature Sweep | Yes! |
| Shear Rate Sweep | Yes! |