What kind of liquid level meter is best for measuring liquid level on the river surface?
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urgently seeking: What kind of liquid level meter is best for measuring liquid level on the river surface? Flood peaks sometimes appear on the river. How to ensure the accuracy of measurement? Fortunately, the river is not very wide. Is it possible to use an ultrasonic level meter?
When measuring river surface liquid level, traditional industrial measurement methods are generally not used because the measured environment is extremely unstable and the measurement range is too large. Instead, according to the hydrological monitoring method, a specialized hydrological monitoring system is used to conduct centralized monitoring of water level, flow rate, and flow. The price is quite expensive. For simple water level monitoring, contact mechanical coding water level meters are commonly used. An input-type liquid level gauge can also be used, with a range of up to 150m, but there are corresponding requirements in the selection of the installation location to avoid fluctuations in the water surface. Ultrasonic liquid level gauges are generally suitable for situations where the liquid level changes slightly, such as weirs and channels where the flow area is small and the liquid level does not fluctuate greatly. (Craft barrels are not discussed. )
Can contact mechanically encoded water level meters be transmitted remotely to DCS? Looking forward to hearing from you, thanks in advance
Contact mechanically encoded water level gauges should have remote transmission capabilities. Working principle: The mechanically encoded water level sensor consists of a water level sensing part and a shaft angle encoder part. The water level sensing part uses a float to sense the water level. The changing water level in the well log causes the float to rise or fall. The float transmits the linear motion of the water level rise and fall to the water level wheel through the suspension cable, causing the water level wheel to produce circular motion. It drives the axis angle encoder to rotate and converts the water level analog quantity A code into the corresponding digital quantity D, which is output in parallel in the form of a switch quantity. Wired remote transmission uses multi-core cables to connect the display part ； Wireless remote transmission outputs signals through digital transmitters and radio stations. Installing the water level gauge requires civil construction. Build logging wells on the river bank. Water level gauges measure well log fluid levels. Industrial pipes can be used for well logging, which reduces investment and construction costs and shortens the construction period.
I want to measure the liquid level in a rubber dam, which is equivalent to a weir and canal. I want to use an ultrasonic liquid level meter. Is it appropriate? How to install it?
With ultrasonic waves, the measured damping time is increased.
Yes, it is recommended to use ultrasonic measurement
What the seventh floor mentioned about increasing the damping time measurement, I didn’t understand what it meant. The more detailed it was, the more I felt that I was becoming more “junior”.
Measure the water level in the river. It is recommended to use a traditional measuring ruler. And economical.
What the poster said is that the liquid level of the rubber dam should be the open channel. I don't know how wide the river you are talking about is? I was responsible for the company's open channel flowmeter installation project the year before last. It was annoying, but also very simple. The annoying thing is that a large part of the work of the open channel flow meter is civil construction, and a cofferdam must be built. It is simply to use ultrasonic waves to measure the liquid level. Pay an installation requirement, 80% of which is civil construction. Installation method: 1. Structural technical requirements 1. 1 The shrinkage section of the inlet of the Schell sink is required to be horizontal to the bottom surface, and the side walls on both sides are perpendicular to the bottom surface and aligned with the longitudinal axis.: The ratio of 5 shrinks symmetrically. The side walls on both sides of the throat section are parallel to each other, and the width (b) size is accurate. In order to prevent flood overflow exceeding the design standards, the height of the side wall of the entrance contraction section should be increased by 0.35-0.50m super height. 1. 2 The length of the upstream and downstream wing walls depends on the width of the river channel. It is required that the length of the wing wall inserted into both banks of the river channel shall not be less than 0.4-0.5m. 1.3 Large-scale Parshall tanks can be constructed with concrete materials, with roughness n