Ultrasonic liquid level sensing system

A system comprising for determining the level of a fluid in a container, the system comprising:

• a controller;
• an ultrasonic probe comprising a fitting assembly adapted to be attached to the container, a barrel extending downwardly from the fitting assembly, and a plurality of ultrasonic sensors located within the barrel, each of the plurality of ultrasonic sensors being electrically linked to the controller and adapted to receive electronic signals sent from the controller, emit sound waves in response to the electronic signals sent from the controller, detect sound waves, and transmit electronic signals to the controller indicative of the detected sound waves, the ultrasonic probe being shaped and configured to be inserted into the container;
• and
• a display that is electrically linked to the controller;
• wherein the controller is operationally configure to send electrical pulses a first frequency and to direct the electrical pulses to each of the plurality of ultrasonic sensors in a first sequence;
• wherein the controller is operationally configured to determine a status of each of the plurality of ultrasonic sensors based on the transmitted electronic signals from each of the plurality of ultrasonic sensors, the status including a dry status and a wet status, the wet status meaning that the transmitted electronic signal received from a sensor of the plurality of ultrasonic sensors indicates that a fluid level in the container is at or above the position of that sensor, the dry status meaning that the transmitted electronic signal received from a sensor of the plurality of ultrasonic sensors indicates that a fluid level in the container is below the position of that sensor;
• wherein the controller is operationally configured to cause the display to provide a visual indication of dry status or wet status for each of the plurality of ultrasonic sensors;
• wherein the controller is operationally configured to compare sequential transmitted electronic signals from each of the plurality of ultrasonic sensors;
• wherein the controller is operationally configured to change the visual indication for any one of the plurality of ultrasonic sensors from wet status to dry status only if at least one predetermined criteria is met.

A system comprising for determining the level of a fluid in a container, the system comprising:

• a controller;
• an ultrasonic probe comprising a fitting assembly adapted to be attached to the container, a barrel extending downwardly from the fitting assembly, and a plurality of ultrasonic sensors located within the barrel, each of the plurality of ultrasonic sensors being electrically linked to the controller and adapted to receive electronic signals sent from the controller, emit sound waves in response to the electronic signals sent from the controller, detect sound waves, and transmit electronic signals to the controller indicative of the detected sound waves, the ultrasonic probe being shaped and configured to be inserted into the container;
• wherein the controller is operationally configured to send electrical pulses at a first frequency and to direct the electrical pulses to each of the plurality of ultrasonic sensors in a first sequence;
• wherein the controller is operationally configured to receive electronic signals from each of the plurality of ultrasonic sensors at a first frequency and to compare sequential transmitted electronic signals from each of the plurality of ultrasonic sensors;
• wherein the controller is operationally configured to determine a fluid level in the container based on the transmitted electronic signals from each of the plurality of ultrasonic sensors;
• wherein the controller is operatively configured to generate an output signal for communication to one or more external devices in electrical communication with the controller, the output signal being representative of the fluid level in the container determined by the controller.