×

Please see all COVID-19 updates here as some shipments may be delayed due to CDC safety and staffing guidelines. If you have an order or shipping question please refer to our Customer Support page. For technical questions please check out our Forums. Thank you for your continued support.

witerunr

Member Since: June 7, 2013

Country: United States

  • I've got a similar need, and I'd be very curious to hear any suggestions you can come up with! I'm trying to measure low flow rates (say, less than 1 mL/min to 30 ml/min) at atmospheric pressure (very very low pressure differential), with minimal disturbance of the flow. I'm hoping to find a flowmeter with a diameter 1 cm or greater, but diameter and flow sensitivity appear to be inversely proportional, so most of what I've seen is in the 1 mm range.

    This is the best sensor I've found, and it appears to be possible to control with an Arduino: http://www.sensirion.com/en/products/liquid-flow-sensors/components-for-oem-applications/lg-flow-sensor/

    I haven't found any other sensors that appear to reach such low flow rates (I've looked into ultrasonic, electromagnetic, and heat-pulse types). Any thoughts?

No public wish lists :(