What is a water 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. These velocity and depth measurements are used to compute the total volume of water flowing past the line during a specific interval of time.
What does a water flow meter do?
A water flow meter is a device that measures the amount of water flowing through a pipe. There are several water flow meter technologies to choose from depending on the water measurement application, maintenance requirements, and budgetary terms.
How do you calculate water discharge?
The discharge of a stream is the product of its velocity (V – length of travel per unit of time such as feet/second) times depth of the water (D – unit of length) times width (W of the water – units of length).
What causes stream flow?
Streamflow is always changing Of course, the main influence on streamflow is precipitation runoff in the watershed. Rainfall causes rivers to rise, and a river can even rise if it only rains very far up in the watershed – remember that water that falls in a watershed will eventually drain by the outflow point.
Can a water meter restrict flow?
They can have very small pipe or tubing incorporated into their makeup which, on its own, can seriously restrict the pressure and flow. Depending on the components used and the manufacturer, a 3/4-inch meter setter can lose as much as 25 psi of pressure at standard residential sprinkler system flow demands.
How is discharge flow rate calculated?
Discharge (also called flow rate) The amount of fluid passing a section of a stream in unit time is called the discharge. If v is the mean velocity and A is the cross sectional area, the discharge Q is defined by Q = Av which is known as volume flow rate.
How is discharge calculated?
Discharge = V x D x W If length is measured in feet and time in seconds, Discharge has units of feet3/sec or cubic feet per second (cfs). Depth times Width gives the cross-sectional area.
What is the velocity of a stream?
Stream velocity is the speed of the water in the stream . Units are distance per time (e.g., meters per second or feet per second). Stream velocity is greatest in midstream near the surface and is slowest along the stream bed and banks due to friction.
How is river flow measured?
A rivers rate of flow is measured in terms of cubic feet per second (cfs) or how many cubic feet of water (volume) passes by a gaging location for a period of one second (one cubic foot of water is approximately 7.5-gallons). Gages are managed by the United States Geological Survey (USGS) at intervals along a watercourse to measure the rate of flow.
What is a digital flow meter?
Digital Flow Meters measures how much fuel has been treated with the MTC Seires Mobile Tank Cleaning System or other Fuel Polishing Systems. Designed for outdoor use from 14 to 130 deg.
What is current meter?
A current meter, often referred to as an ammeter, is a device that measures the flow of electrical current in a circuit. Current meters can be digital or analog and are frequently part of a larger multimeter that can measure voltage and resistance as well. These devices — both current and multimeters — are often…