Rain and snow sensors working principle

There are two main types of weather sensors related to rain and snow. One is a rain gauge used to measure the amount of rain, and the other is a rain and snow sensor used to monitor whether it is raining or snowing. When browsing related materials, I found that there are many articles about rain meter, but few articles about rain and snow sensor, so this article will introduce rain and snow sensors.

Rain and snow sensor is one of the components of weather monitoring system. The device is a device specifically designed to measure whether it is raining or snowing outside or in nature. Rain and snow sensors are widely used in meteorology, agriculture, industry, Marine, environmental, airport, port and transportation to qualitatively measure the presence or absence of rain and snow.

rain and snow sensors
Working principle of the rain and snow sensor

Monitoring rainfall: Rain and snow sensors use grid electrodes above the sensor to take advantage of the electrical conductivity of water, which causes the electrodes to short circuit when rain falls onto the sensing zone so that the device can monitor rain.

Monitoring snowfall: The rain and snow sensor is able to measure snowfall because the sensor has an automatic heating function to prevent icing and condensation in snow, when the temperature is below 0°C for long periods and in high humidity environments. And the heating temperature can be set.

rain and snow sensor
Practical applications for rain and snow sensors (rain)

Rain and snow sensors can be used in greenhouses. In times of frequent rainstorms, after the rain sensor monitors the rain information, it can effectively reduce the loss of greenhouse crops by linking the rain avoidance equipment of the greenhouse through the corresponding system and sending signals to the greenhouse management staff at the same time.

In addition, in the case of weather that is not noticed by farm managers, when the system monitors abnormal data, it sends a reminder notice to the grower within a set period of time, so that even if they cannot reach the greenhouse greenhouse site in time, the greenhouse manager can take measures remotely to reduce losses. In unmanned conditions, the rain and snow sensors can still automatically manage the greenhouse by linking the relevant systems through parameter settings, so that the vegetables in the greenhouse are always in the right growing environment.

Practical applications for rain and snow sensors (snow)

Rain and snow transmitters can be used on motorways or railway tracks. In the northern part of China, highways or railways in winter often encounter bad weather with wind and snow. We all know that when the weather is bad, highways are closed. Imagine the embarrassment if, during a heavy snowfall, the car is blocked on the highway due to unclear weather conditions and you can’t get in or out.

The snow and rain sensor is a qualitative measuring device for measuring snowfall outside. The rain and snow sensor has an automatic heating function, which prevents data deviations caused by ice and dew when it is snowing, when the temperature is below 0°C for a long period of time and in high humidity environments, the grille of the rain and snow sensor is automatically heated. After monitoring the snowfall, the rain and snow sensor can upload the data to the cloud platform through the corresponding highway weather station or railway weather station, and after making an accurate judgement on the snowfall with other sensors, the driver who is still on the highway or already on the highway will be reminded to make early preparations.

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