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What is a double tipping bucket rain gauge?
Rainfall affects people’s economic development and lifestyle. With the construction and development of meteorological modernization, the focus of rainfall monitoring in various industries has begun to vary, and various rain gauges have appeared on the market. For example, rain gauges such as siphon type, tipping bucket type, and weighing type. At present, the main domestic instruments used to observe precipitation are tipping bucket rain gauges. The tipping bucket rain gauge is divided into single tipping bucket rain gauge and double tipping bucket rain gauge. This article describes the double tipping bucket rain gauge. The double tipping bucket rain gauge is an improvement of the single tipping bucket rain gauge. Because the single tipping bucket rain gauge continues to inject rain into the tipping bucket during the tipping bucket, the rainfall in the precipitation varies greatly, which will bring errors. A double tipping bucket rain gauge was produced. Using multiple tipping buckets can evenly inject natural precipitation of different intensities into the metering tipping bucket. 1. The working principle of the double tipping bucket rain gauge The double tipping bucket rain gauge, the precipitation first enters the upper tipping bucket, when it accumulates to a certain amount, the precipitation enters the metering tipping bucket, and then the natural precipitation of different intensities is adjusted for comparison Uniform precipitation intensity reduces measurement errors caused by different precipitation intensities; when the amount of precipitation received by the measuring tipping bucket reaches a certain amount, pour the water into the counting tipping bucket to turn it over, and the rain gauge monitors and outputs a switch signal (pulse signal). Second, the advantages of the double tipping bucket rain gauge 1. Adjust the flow rate to reduce the error The double tipping bucket rain gauge can adjust the natural precipitation of different intensities to a more uniform intensity through the upper tipping bucket and the metering tipping bucket. Precipitation, in order to reduce the measurement error caused by different precipitation intensity, and make the data more accurate. In addition, the tipping bucket rain gauge has the possibility of rainwater splashing due to uneven rainfall intensity and flow rate, resulting in reduced rainfall measurement; while the collecting funnel on the double tipping bucket rain gauge can collect the splashed rainwater , Reduce errors. 2. Conform to the national standard The size of the double tipping bucket rain gauge conforms to the national standard. The inner diameter of the rain-bearing mouth is 200mm, the edge of the rain-bearing mouth is blade-shaped, and the angle of the rain-bearing mouth is in the range of 40°～45°, which conforms to the national standard of 'Tipping Bucket Rain Sensor' GB/T21978.2-2014 It is required to effectively ensure the accuracy of rainfall monitoring, support 485 signal and pulse type signal output, and have two types of products with a resolution of 0.1 and 0.2mm for customers to choose. Maintenance and maintenance of the double tipping bucket rain gauge1. Daily maintenance The double tipping bucket rain gauge needs to be used outdoors for a long time, and the use environment is quite harsh, so the inner wall of the rain-bearing port of the instrument Wipe with a soft cloth frequently to keep the rain-bearing vent clean. If there are foreign objects such as leaves in the rain-bearing vent, it should be cleaned up in time to keep the waterway unblocked. When the instrument is not used for a long time, a cover should be placed on the ring mouth of the instrument to protect the rain-bearing mouth;The rain gauge should be cleaned once a month for long-term work, and must be cleaned once every three months;2, tipping bucket maintenance< /p>The tipping bucket is a key component of the instrument, which directly affects the measurement accuracy of the instrument. 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. Using a double tipping bucket rain gauge can more accurately understand the precipitation in a region, and it also helps us to better arrange production and life. At present, the double tipping bucket rain gauge is widely used in applications such as meteorology, agriculture, industrial automation engineering, intelligent building systems, workshops, warehouses, museums, laboratories, greenhouses, etc., bringing convenience to various fields.
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