Ultrasonic flow sensor

A method comprising:

• receiving, for a pipe to with which an ultrasonic flow sensor couples, pipe configuration data, the ultrasonic flow sensor configured to monitor water flow in either a first direction or a second direction;
• determining, using the pipe configuration data, a distance for a space between a first ultrasonic device and a second ultrasonic device both included in the ultrasonic flow sensor;
• emitting, while the first ultrasonic device is the distance away from the second ultrasonic device and water is not flowing through the pipe and using each of two ultrasonic flow transducers included in the ultrasonic flow sensor, one or more first ultrasonic waves;
• emitting, while the first ultrasonic device is the distance away from the second ultrasonic device and water is flowing through the pipe and using each of the two ultrasonic flow transducers included in the ultrasonic flow sensor, one or more second ultrasonic waves;
• and
• determining, using the one or more first ultrasonic waves and the one or more second ultrasonic waves, one or more sensor calibration settings for the ultrasonic flow sensor that has the distance between the first ultrasonic device and the second ultrasonic device, the determining comprising detecting, from the first direction and the second direction for the water flow, a flow direction calibration using the one or more first ultrasonic waves detected while water is not flowing through the pipe and the one or more second ultrasonic waves detected while water is flowing through the pipe;
• and
• causing the ultrasonic flow sensor to have the flow direction calibration using the one or more sensor calibration settings.

One or more non-transitory computer storage media encoded with instructions that, when executed by one or more computers, cause the one or more computers to perform operations comprising:

• accessing, for a pipe to with which an ultrasonic flow sensor couples, pipe configuration data;
• determining, using the pipe configuration data, a distance for a space between a first ultrasonic device and a second ultrasonic device both included in the ultrasonic flow sensor;
• detecting, using each of two ultrasonic flow transducers included in the ultrasonic flow sensor, one or more first ultrasonic waves emitted while water is not flowing through the pipe and the first ultrasonic device is the distance away from the second ultrasonic device;
• detecting, using each of the two ultrasonic flow transducers included in the ultrasonic flow sensor, one or more second ultrasonic waves emitted while water is flowing through the pipe and the first ultrasonic device is the distance away from the second ultrasonic device;
• determining, using the one or more first ultrasonic waves detected while water is not flowing through the pipe and the one or more second ultrasonic waves detected while water is flowing through the pipe, one or more sensor calibration settings for the ultrasonic flow sensor that has the distance between the first ultrasonic device and the second ultrasonic device, the determining comprising detecting a flow direction calibration using the one or more first ultrasonic waves detected while water is not flowing through the pipe and the one or more second ultrasonic waves detected while water is flowing through the pipe;
• and
• causing configuration of the ultrasonic flow sensor using the one or more sensor calibration settings, the causing comprising causing the ultrasonic flow sensor to have the flow direction calibration using the one or more sensor calibration settings.