Water Velocity Measurement

There are several types of meters that measure water flow velocity including jet meters single jet and multi jet turbine meters propeller meters and mag meters.

Water velocity measurement.

Surface velocity radar for measuring open channel flow. Most velocity based meters have an adjustment vane for calibrating the meter to the required accuracy. Pitot tubes are used in a variety of applications for measuring fluid velocity. The water velocity probe consists of a protected water turbo prop positive displacement sensor coupled with an expandable probe handle ending in a digital readout display.

Designed for measuring flow in open channels and rivers where reliable velocity data is required continuously during floods or periods of high concentrations of suspended sediments. Pitot tubes also called pitot static tubes are used for example to make airflow measurements in hvac applications and for aircraft airspeed measurements. All types of the instrument have common features. The water velocity probe consists of a protected water turbo prop positive displacement sensor coupled with an expandable probe handle ending in a digital readout display.

The global water flow probe is a highly accurate water velocity instrument for measuring flows in open channels and partially filled pipes. There are various forms of current meters and the most commonly used ones are a the price current meter and b propeller type current meter. The current meter is used to measure water velocity at predetermined points subsections along a marked line suspended cableway or bridge across a river or stream. Ott svr 100 is a simple non contact compact surface water velocity radar sensor.

The depth of the water is also measured at each point. In the simplest method a current meter turns with the flow of the river or stream. The global water flow probe is a highly accurate water velocity instrument for measuring flows in open channels and partially filled pipes. Global water flow probes are highly accurate water velocity instruments for measuring flow in open channels and partially filled pipes.

The flow rate measurement in a rectangular weir is based on the bernoulli equation principles and can be expressed as. This is a convenient inexpensive method for measuring velocity at a point in a flowing fluid. Q 2 3 cd b 2 g 1 2 h3 2 1. The sensor uses an ultrasonic level sensor to measure the level and determines a sub surface point to measure velocity.