Leaf area meter for easy determination of hawthorn leaf area
Jingcheng card water meters include IC(Integrated Circuit) card and RF(Radio Frequency) card are the new measuring instruments employing the microprocessor to realize water collection, processing, display, and reserving.
Jingcheng developed a new mobile radio system especially for remote reading of water meters, Heat Meters and energy meters for heating and cooling.
Our prepaid meters are designed for situations where a wide flow range must be covered. Quick responsiveness, even at low flow rates, combined with power reserves for high flow rates makes this meter model the ideal partner for service connections in water supply.
FEATURES:
â—Card water meters use pre-paid way to achieve the new management mode
of "purchase first, then use".
â—Show the different level price of the water, one card can be used to several meter.
â—Double reading display: mechanical and electronic reading, the unique
battery protection
â—Stable performance, wide application, low power consumption, long life time
â—New outer cover design
Card Water Meters,Detachable Water Meter,Removable Card Water Meters Ningbo Jingcheng Technology Co., Ltd. , https://www.jingchengmeter.com
The test variety is open, five-year-old tree, moderate tree vigor. Because of the different shape and size of the leaves of the branches of the hawthorn _7 different nodes, the leaves in the middle of the branches are the same and stable. Therefore, 6 trees are selected, and the leaves with 14-18 knots are selected at random in each azimuth on each tree. Six, first determine their length, width, and then use the leaf area meter to measure their actual area.
The measurement data of the leaf area meter combined with the length and width of the mountain plant leaves have a certain correlation with their actual area. Assuming that S is actually a KxLXH (K is the correction coefficient), the calculation result of 36 blades: the average value of K is 0.58, and the standard deviation is 0.03, which is S actual one. .58LXH. Measuring the length and width of a mountain planting tree leaf in the field, and then using the formula S=0.58xLxH to ​​calculate the leaf area size is a simple measurement method that does not damage the structure of the hillside tree.
Constant development guarantees accurate measuring results and the best long-term stability. Constructional details, such as the design of the turbines result in excellent true running characteristics and minimum bearing loads. All movable parts have an optimised specified weight.
Together with the special arrangement of the bearings and the turbine, this guarantees a minimal moment of friction and a long service life.
In use by the million worldwide, our domestic water meters will convince you thanks to their high technical standard and high-quality workmanship. Precise measurement results are achieved, even where the water quality varies or in the most difficult installation situations.