The Gravity Well Barometer is a Sensor system that determines the strength and directionality of gravity well. The basic incarnation relies on a mass of fluid, gas or both that is allowed to float free in a confined and monitored space. This mass is referred to as the bubble. When a gravity well is approached the bubble moves. The speed and vector of the bubble’s movement is used to calculate the strength and directionality of gravity well. The sophisticated versions can compensate for displacement caused by the ship’s mass and acceleration, overlapping gravity wells and detect surrounding minor masses.
The Gravity Well Barometer: A 100 piece of Sci-Fi Minutia
The term Sensors refers to a broad range of devices on a space ship that are used to observe the environment outside the spacecraft. Under the broad umbrella of this concept are scores of devices ranging from a simple alignment of magnets to devices that pull at the fabric of space itself.