We define open channel flow as any flow through a ditch or conduit that is not pressurized. This is important because the sensors and meters are different for a pressurized system as opposed to a non-pressurized system.
Flumes and Weirs are simple structures that are installed in the bottom of the channel, forcing the water to run through or over it. We offer many styles of flumes and weirs and can provide the needed sensors to create a flow recording system.
We also have Area Velocity Meters with sensors that can be installed in the bottom of a ditch, channel or conduit. These Area Velocity Meters measure both the depth and velocity of the water, which gives it the ability to calculate flow (discharge). These sensors or systems are very simple to install, but tend to be a little more expensive than small flumes and weirs.