Cavitation Indicator

Cavitation indicators are devices used in shipboard alarm and signal systems to detect and indicate the occurrence of cavitation in a ship's propulsion system. Cavitation is the formation and subsequent collapse of vapor bubbles in a liquid, typically caused by rapid changes in pressure.

In a ship's propulsion system, cavitation can occur when the pressure at the propeller blades drops below the vapor pressure of the surrounding water. This can lead to reduced propeller efficiency, increased noise and vibration, and potential damage to the propeller and other components.

Cavitation indicators are designed to monitor the pressure at the propeller blades and provide a visual or audible alarm when cavitation is detected. They typically consist of a pressure sensor, an indicator panel or display, and an alarm system. When cavitation occurs, the pressure sensor detects the drop in pressure and triggers the alarm system, alerting the ship's crew to take appropriate action.

Cavitation indicators are an important component of shipboard alarm and signal systems, as they help to ensure the safe and efficient operation of a ship's propulsion system. By detecting and indicating the occurrence of cavitation, they allow the crew to take corrective measures, such as adjusting the ship's speed or trim, to minimize the effects of cavitation and prevent potential damage to the propulsion system.