Typical Flow Characteristics Mp6 And Mp6-Pp; Final Inspection - Bartels Mikrotechnik mp6 Operating Manual

3.3 Typical flow characteristics mp6 and mp6-pp

Increase in amplitude linearly increases the flow rate to the
maximum.
The amplitude defines the stroke of the actuator and therefore the
displacement of the pumping media per pump cycles.
The resonance frequency
maximum flow rate strongly depend on
the viscosity of the media.
The lower the viscosity, the higher the
maximum flow rate and the resonance
frequency.

3.4 Final inspection

After production the micropumps have to pass a final inspection. They are tested concerning the maximum
flow and back pressure and the self-priming characteristic (conditions: suction pressure < 10 mbar; DI
water; settings mp-x: 100 Hz, 250 V, SRS, the max. flow rate will be reached after a few minutes of
operation time).
Measurement conditions
Pump media: DI-Water
8
The flow rate of the pumps shows a linear dependency on the back
pressure.
At 0 mbar back pressure the maximum pump rate can be achieved
and at the maximum back pressure the flow rate is decreased to
0 ml/min.
Rising frequencies result in a maximum flow rate at resonance
frequency. At frequencies above the resonant point the flow rate
decreases again.
and the
Bartels Mikrotechnik GmbH, Otto-Hahn-Str. 15, 44227 Dortmund, Germany
www.micro-components.com, microComponents@bartels-mikrotechnik.de
Tel: +49-231-9742-500, Fax: +49-231-9742-501