How to choose a suitable water level sensor?

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How to choose a suitable water level sensor? [Copy link]

Common water level sensors include photoelectric, float, capacitive, and ultrasonic types. The working principles and application environments of each type of water level sensor are different. So how do you choose a suitable water level sensor?

First, choose according to your application environment. For example, for industrial-grade detection, usually industrial-grade water level detection can use ultrasonic sensors. The advantages of ultrasonic water level sensors are real-time detection, accurate liquid level detection, and fast feedback signals. Photoelectric sensors can also be used in industrial-grade liquid detection.

If it is a household appliance, then the ultrasonic type can be ruled out, and the photoelectric or capacitive type can be used.

The photoelectric water level sensor is a sensor that refracts the light emitted by the internal transmitting tube back to the receiver, and determines whether the sensor is in a water or water-free state by the light received (or not received) by the receiver. The photoelectric water level sensor has high repeatability and detection accuracy, high reliability and long life.

Capacitive water level sensors can only be used on non-metallic water tanks. Their working principle is to determine whether the sensor is in a water or water-free state by sensing the difference in capacitance values when there is water and when there is no water. Metal materials will interfere with capacitive detection and may lead to misjudgment. Therefore, the stability of capacitive water level sensors will be affected by the material of the container being detected.

Only by understanding the characteristics and application environment of the water level sensor can you choose the water level sensor that best suits your application.

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We need to understand not only the properties and state of the liquid being measured, but also the advantages and limitations of different detection methods in order to select the most appropriate sensor.

吾妻思萌

Float yyds

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Azuma Simeng published on 2022-10-20 19:28 Float yyds

The unstable life end of the float type is a thing of the past