OT - Detection of liquid purge/spray

Hi,

I'm in need of detecting liquid flow from a metering pump. The is metered to spray a liquid to a container- ~2mg/spray. The pump is designed to give the accuracy of the spray. So I do not need to measure the quantity dispensed.

We are trying to detect there is a flow during each pump cycle. It is running about 30 sprays/minute.

Anybody come across such detection?

Try Prominent (http://www.prominent.cc ) they have a range of metering equipment but one in particular might be good, it will provide a pulse signal for a known volume (known after calibration!)