Fluid level detection apparatus, fluid level detection method, and computer-readable medium containing fluid level detection program

A fluid level detection method comprising:

• providing a vibrator and a vibration sensor on an outer wall surface of a container at respective positions that interpose, from above and below, a fluid level of a fluid provided in the container, the vibrator being configured to apply a vibration to the container that contains the fluid, the vibration sensor being configured to detect a vibration wave that is generated by the vibrator and propagates through the container;
• and
• calculating, with a controller, a height of the fluid level, on a basis of the vibration wave detected by the vibration sensor.

A non-transitory computer readable medium containing a fluid level detection program, the fluid level detection program causing, when executed by a computer, the computer to implement a method, the method comprising

• calculating a height of a fluid level of a fluid provided in a container, on a basis of a vibration wave generated by a vibrator and detected by a vibration sensor, the vibrator being configured to apply a vibration to the container that contains the fluid, the vibration sensor being configured to detect the vibration wave that is generated by the vibrator and propagates through the container, the vibrator and the vibration sensor being provided on an outer wall surface of the container at respective positions that interpose, from above and below, the fluid level of the fluid provided in the container.