Stability of microfluidic flow control instruments

OB1 MkII Piezo technology VS. Electromechanic technology

OB1 MkII typical stability*: 0.005% s.d.

Pressure stability over time at 150 mBar OB1 200 mBar output (2 mL output volume) and electro-mechanical technology (2 mL output volume). Real output pressure stability measured at 150 mBar with an external high accuracy pressure sensor (Druck DPI150)

* Short term stability measured for 1 min with a high accuracy sensor (Druck DPI150), excluding long term drift due to aging and environmental factor variations.

OB1 MkII stability- Real output pressure and internal pressure sensor

For demanding microfluidic researchers, maintaining a stable flow in their chip is essential – the pressure stability in a microchip is directly related to flow stability in the microchannel.

With the OB1, you will get a flow stability that is 20 times higher than other existing technologies available for microfluidic research (0.005% of the full scale).

Note that the pressure value which is displayed in your Elveflow software provides a visual indicator of the applied pressure changes.

The OB1 MKII internal pressure sensor used by the Elveflow software to display pressure has an additional electronic noise (0.05%) which does not rely on a real output pressure variation. As shown in the figure below, pressure noise in your microfluidic device will be 10 times less than the pressure displayed in your Elveflow interface.

* Output Stability measured at 150 mBar with an external high accuracy pressure sensor (Druck DPI150) simultaneously displayed with the Elveflow interface monitoring.