What is an Ultrasonic Water Meters?
Ultrasonic water meter is a new type of water meter that uses ultrasonic technology to measure water flow velocity and calculate water flow. It detects the time difference caused by the change in speed when the ultrasonic sound beam propagates downstream and upstream in the water, analyzes and processes the water flow velocity, and then calculates the water flow.
Ultrasonic water meters have many distinctive features. First of all, the starting flow rate is low, which can sensitively detect small changes in water flow and accurately measure even under low flow conditions. Secondly, the range ratio is wide, which can maintain good measurement accuracy in a large flow range. Furthermore, the measurement accuracy is high and the operation is stable, providing a reliable guarantee for accurate measurement. In addition, it has no moving parts inside, no flow-blocking elements, is not affected by impurities in the water, and has a long service life. At the same time, the output communication functions are complete, meeting various communication and wireless networking requirements, and facilitating data transmission and management.
Ultrasonic water meters have excellent small flow detection capabilities, can effectively solve many problems of traditional water meters, are more suitable for gradient water fee charging, help promote the conservation and rational use of water resources, and have broad market and usage prospects.
How Do Ultrasonic Water Meters Work ?
Ultrasonic water meters calculate water flow by detecting the time difference when ultrasonic sound beams propagate downstream and upstream in water. Its core component is an ultrasonic transducer, which includes a transmitter and a receiver. When ultrasonic waves propagate along the direction of water flow, the propagation speed increases; conversely, when they propagate against the direction of water flow, the propagation speed slows down. By comparing the ultrasonic propagation time downstream and upstream, the speed of the water flow can be calculated. Based on this speed, combined with the cross-sectional area of the pipe, the flow value can be obtained.
Specifically, the ultrasonic beam emitted by one probe enters the pipe through the pipe wall, is reflected by the other side of the pipe wall, and is received by another ultrasonic probe. The path of the ultrasonic wave is V-shaped. During measurement, the upstream and downstream ultrasonic sensors take turns to transmit and receive ultrasonic pulses, and a high-precision digital timer is used to measure the time difference of the ultrasonic beam propagating in the pipe along the forward and reverse directions, respectively. The absolute value is ΔT. Assume that the inner diameter of the pipe is D, the angle between the ultrasonic beam in the pipe and the cross section of the pipe is θ, and the time from the emission to the reception of the ultrasonic wave when the fluid in the pipe is stationary is T0. By measuring the above physical quantities, the fluid flow rate can be calculated.
Application of Ultrasonic Water Meters
Agricultural irrigation: The installation environment of agricultural water meters is generally harsh, while the waterproof grade of ultrasonic water meters is IP68, which can greatly reduce the frequency of water meter failures. This type of water meter has no mechanical transmission parts and no flow-blocking elements. The measurement is almost unaffected by water quality and can adapt to the conditions of poor agricultural irrigation water quality. It is the most suitable product for agricultural irrigation water measurement. Especially in the application of large-caliber water meters, ultrasonic water meters have extremely small pressure loss, strong adaptability, higher range ratio, can distribute water resources more fairly, and are almost unaffected by factors such as fluid composition and viscosity, and have a longer service life.
Smart City: Ultrasonic water meters have no pressure loss, effectively reducing the energy consumption of the pump and achieving energy-saving goals. Complete communication interfaces facilitate networking and remote monitoring, reflecting intelligence. Battery-powered, no mechanical transmission parts, long service life, it plays an irreplaceable role in the construction of smart cities.
Urban and rural water supply: Ultrasonic water meters can adapt to various water quality conditions. The communication network is convenient, the output signal is multiple, and it is convenient for automatic settlement and computer management, so as to realize the centralized management of water resources, improve management efficiency, remote monitoring, and reduce management costs.
Types of Ultrasonic Water Meters
GUF140 sandwich-type: Mainly used in agricultural irrigation, garden management, water resources monitoring design and other fields,The thickness of the water meter is only 2 inches, which saves installation space and basically has no pressure loss. And all parts have reached the IP68 protection level, so that the water meter can work in various harsh environments.
GUF142 Two-channel type: Adapt advanced transit-time measurement technology , with the remarkable features of low power consumption, wide measuring range ratio, stable and reliable measurement .Each component reaches IP68 protection class, to ensure long term operation though water in the inside meter.
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