Stream Flow Measurements Through Non Contact Methods

Stream Flow Measurements Through Non Contact Methods

Conventional river and stream flow measurements can be difficult. Costly endeavors, they’re as time-consuming as they are dangerous, and finding another way to measure river flows continuously over a long period of time without the need for penetrating instruments is an absolute must.

The Need for Accurate Measurement

There are a number of reasons it’s necessary to quantify water flow in the nation’s streams and rivers. Because they so often provide drinking water, power generation capabilities, and an irrigation source for crop land, flow data is necessary on an economic and social level. Unfortunately, basic methods for measurement haven’t changed in decades. Direct measurement is usually made at regular intervals across the flow utilizing a mechanical meter, either from a bridge or by boat. Unfortunately, that’s not always possible. In flood conditions, for example, the flow as well as debris in the waterway can be quite dangerous. Add that to the fact that budgets are shrinking across the board both for research and public projects generally, as well as the fact that direct measurement methods are often inaccurate, and you have a clear case for something a bit better.

The Better Options

A number of studies have looked at non contact radar options as the best possible option in difficult situations. A U.S Geological Survey report found flow measurement could easily be made realiable and accurate thanks to non-contact radar devices. One good choice is the Krohne Optiwave 7300. Designed for liquid applications, it offers a high level of accuracy and measures a range up to 80 meters. It has a directly accessible graphic touchscreen option, and can operate at a number of temperatures.

To learn more about this device and our other flow measurement choices, contact us today.