The well depth parameter acts as a correction for converting the measured water level to the actual water level from the bottom of the well.
The well diameter is used to calculate the well volume in liters.
Based on this value, the maximum measurable depth of the well is also calculated using ultrasonic sensors, taking into account their detection characteristic (beam width) for measurements without reflections.
Maximum depth of well with diameter 80 cm (for successful measurements with an ultrasonic sensor without reflections from the walls of the well):
Estimated measurement - HC-SR04 : 149.28 cm
Estimated measurement - JSN-SR04T : 23.09 cm
MATLAB export
Detection characteristics of the HC-SR04 sensor
Detection characteristics of the JSN-SR04T sensor - waterproof