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Take you to quickly understand the tipping bucket rain gauge in five minutes

by:Rika Sensors     2021-10-01
Take you to quickly understand the tipping bucket rain gauge in five minutes
In recent years, leading technologies such as cloud computing, big data, and the Internet of Things have gradually merged with agriculture, and the concept of smart agriculture has emerged.

In traditional agriculture, people have limited access to farmland meteorological data, mainly relying on manual measurement. The acquisition process not only consumes a lot of human resources, but the measured data is not necessarily accurate. With the development of smart agriculture, IoT technologies such as smart sensing chips and remote control systems have been widely used in modern agriculture. Monitoring temperature, humidity, wind, atmosphere, rainfall, humidity of the land, soil nitrogen, phosphorus and potassium content and pH value and other data has become convenient and quick. At present, sensor technology based on the Internet of Things is playing an increasingly important role in the development of agriculture.

The tipping bucket rain gauge described in this article is a sensor used to monitor rainfall in smart agriculture.

Tipping bucket rain gauge

The tipping bucket rain gauge is an important rainfall observation instrument that can observe the rainfall data in real time. It has the advantages of accurate time, automatic data recording and convenient data collection, compilation and processing.

The composition of the tipping bucket rain gauge

The tipping bucket rain gauge consists of the rain gauge housing, rain collector, funnel, tipping bucket support, tipping bucket, bearing screws, water outlet bin, sealing joint, reed tube, horizontal bubble , Adjustment support board, control box, leveling device, wiring terminal, leg bracket, rain gauge base, etc. Among them, the base of the rain gauge is equipped with a tipping bucket shaft, a round horizontal bubble, a reed switch bracket and a signal output terminal.

The principle of the tipping bucket rain gauge

The working principle of the tipping bucket rain gauge is: rainwater enters the water receiver from the top rain port, falls into the diversion funnel, and flows into the tipping bucket through the mouth of the funnel. When the accumulation of water reaches a certain height (for example, 0.1 mm), the tipping bucket will lose its balance and tip over; as the rain continues, the tipping bucket will be turned left and right. The contact switch will turn the tipping bucket times into an electrical signal and send it to the record. It reads the precipitation data on the cumulative counter and self-recording clock, so that the rainfall process can be measured back and forth.

Maintenance and maintenance of tipping bucket rain gauge

In the use of rain gauge, it is usually required to be maintained once a month. Calibration should also be carried out before encountering heavy precipitation to ensure that the measured precipitation is objective and precise. Routine maintenance can not only extend the life of the instrument, but also obtain more accurate information. Ensure that the outer cylinder is stable and vertical and the water container is level to prevent the mouth of the water container from being deformed. If the outer cylinder is not stable, it will shake when the wind is strong, thereby damaging the instrument. Whether the outer cylinder is vertical and whether the water receiver is horizontal and vertical is directly related to the objectivity of the rain collector. The specific maintenance measures are as follows: 1. The level bubble should be observed regularly. If the level bubble is not in the center circle, a small wrench can be used to adjust the level screw. Do not use excessive force during adjustment to prevent the chassis feet from breaking.

2. The tipping bucket rain gauge is outdoors for a long time, and the use environment is quite harsh. Therefore, the inner wall of the rain port of the equipment should be wiped with a soft cloth frequently to keep the rain port clean. If there are foreign objects such as leaves in the rain port, it should be timely Clean up and keep the waterway unblocked;

3. When the rain gauge is not in use for a long time, cover the ring of the rain gauge to protect the rain-bearing port;

4. The rain gauge should be cleaned once a month for long-term work. It must be cleaned once every three months;

5. The tipping bucket is a key component of this instrument, which directly affects the measurement accuracy of the rain gauge. Over time, a little dust or oil will be deposited on the inner wall of the tipping bucket. Therefore, the tipping bucket should be cleaned. When cleaning, the inner wall of the tipping bucket can be repeatedly rinsed with clean water or gently brushed with a degreasing brush. It is strictly forbidden to scrub the inner wall of the tipping bucket with hands or other objects.



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