With ultrasonic sensors we can find the water depth calculation by finding the distance between the transceiver.
Water depth sensor.
In a nutshell water depth sensing is using a sensor to measure the depth of water in a tank or container.
The pressure module have wide range applications ranging from liquid level measurements in tanks water depth and temperature in diving snorkeling and rov.
The primary use for submersible depth sensors is to monitor the level of water in reservoirs rivers boreholes and various other bodies of water.
S12s sdi 12 coms ip68 pressure and temperature sensor combined pressure and temperature sensor with a 1200 baud rate serial data interface as defined by the sdi 12 support group.
Water level sensor pinout.
Although various sensors can be used for this application we will talk about using ultrasonic technology in this application.
The sensor is the measurement specialties ms5837 30ba which can measure up to 30 bar 300m 1000ft depth and.
Please read note 3 below for linear range and accuracy.
The sensor produces an output voltage according to the resistance which by measuring we can determine the water level.
You can hang the receiver unit on a wall or pull out the.
Theoretically when the sensor is not in the water the measured value at the sensor pin is approx 1 0855 v which would be equivalent to 1347 bits.
The water level sensor is super easy to use and only has 3 pins to connect.
With 0 2 mbar resolution it has an amazing depth measurement resolution of 2mm in the water column.
The deviation with the graph can be explained with tolerances of the resistors the resistance in the sensor wire deviations in the 3 3 volt supply of the esp 32 and some non linearities in the 12.
The less water the sensor is immersed in results in poor conductivity and will result in a higher resistance.
The sensors in this section are all hydrostatic pressure sensors that are submersible and used for measuring the level of various liquids.
The bar30 pressure sensor is a high pressure high resolution pressure sensor that is sealed from the water and ready to install in a watertight enclosure on your rov or auv.
Water tank sensorliquid depth sensor keep an eye on your outdoor water tank from the comfort of your own living room up to 100m away.