- TTP Ventus Disc Pump combined with Sensirion liquid flow sensor
- Together, technologies provide exceptional liquid flow control
- New system suitable for laboratory testing and product prototyping
Cambridge, UK, 07 October 2020: Micropump manufacturer TTP Ventus Ltd today announces its collaboration with Sensirion AG – a leading manufacturer of high-quality sensor solutions – on the design of a compact high-performance microfluidic driver. The system has been created to support laboratory prototyping and product development for a wide range of microfluidics applications, from laboratory test systems, to diagnostics and analytical instruments. The companies have made the design available online for customers to recreate and adapt to their needs.
The companies have integrated Sensirion’s next-generation SLF3x series liquid flow sensor with TTP Ventus’ Disc Pump Evaluation Kit, taking advantage of the class-leading capabilities of each technology. The resulting stand-alone system provides a closed-loop, constant flow rate source for high-precision applications.
The system operates on a “pressure-driven flow” or “air over liquid” principle, where gas pressure generated by the pump is used to drive liquid flow through the microfluidic circuit. If cross-contamination between liquids must be avoided, Sensirion’s LD20 single-use sensor can be used instead of the SLF3x sensor series. This separation of the pump from the liquid supports the reusable-consumable model widely adopted in diagnostic and analytical instrumentation, with the pump located in a reusable part of the system and the liquid path and sensor in a consumable.
The micropump’s pulsation-free pressure generation delivers smooth liquid flow with none of the oscillation often seen with conventional technologies, such as peristaltic pumps. This brings a number of benefits, including the ability to create laminar flow, reduction of measurement noise, and gentle handling of delicate materials. The pump also provides excellent pressure control which, together with the high-resolution capability of the sensor, result in unrivalled liquid flow control.