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The quartz type water level gauge converts the frequency signal from the quartz oscillator into an optical signal (single mode: SM) within the sensor’s electro-optic conversion (E/O conversion) unit, and transmits it accordingly.
The sensor power source is supplied optically from the encoder unit, and is received and generated by the optical electric power supply unit inside the sensor.

The quartz type water level gauge (water temperature correction type) integrates a temperature sensor into the high-accuracy and stable quartz type water level gauge sensor and sensor cable. In applications such as deep reservoirs and dams, where water temperature differences are significant, the temperature sensor measures the water temperature and applies density correction, ensuring highly accurate water level observation. Additionally, like conventional water level gauges, the installation method is simple, and O&M (operation and maintenance) is easy.

The pressure type water level gauge adopts a semiconductor pressure detection method and uses ceramic in the pressure receiving part, which converts the water level into water pressure.

A microwave type water level gauge that adopts the microwave pulse propagation time difference method. As it utilizes radio waves for measurement, observations can be made without being influenced by environmental conditions, the measurement target, or air temperature.

The measurement column contains a float with an attached magnet that moves vertically. Reed switches are positioned every 1 cm to directly detect the water level based on the float’s position, resulting in a simple structure. It can be easily installed at any location along a river or channel, near a water gate, at a drainage pump station, or on the wall of a pumping station.