Abstract: A method and apparatus for monitoring an interior of a fuel tank. Information about a fuel level and moisture in the interior of the fuel tank of a platform is generated using a fuel sensor unit in the interior of the fuel tank. The fuel sensor unit comprises a sensor configured to be located in the interior of the fuel tank and generate information about the fuel level in the fuel tank and the moisture in the fuel tank and a wireless unit electrically connected to the sensor. The wireless unit is configured to receive the information from the sensor and transmit the information using wireless signals. A number of actions is identified based on the information about the interior of the fuel tank.

Abstract: An aircraft design system comprising a components database having designs for components configured for use in an aircraft, a materials database having materials selected for desired types of wireless signal propagation, and a boundary designer. The boundary designer is configured to identify a configuration for wireless networks in the aircraft. The boundary designer is further configured to select a number of boundaries for the wireless networks that provide a desired propagation of wireless signals for the wireless networks. The boundary designer is further configured to select a configuration for a number of the components from the designs in the components database and select a number of materials for the number of the components to form the number of boundaries for the wireless networks.

Abstract: An aircraft design system comprising a components database having designs for components configured for use in an aircraft, a materials database having materials selected for desired types of wireless signal propagation, and a boundary designer. The boundary designer is configured to identify a configuration for wireless networks in the aircraft. The boundary designer is further configured to select a number of boundaries for the wireless networks that provide a desired propagation of wireless signals for the wireless networks. The boundary designer is further configured to select a configuration for a number of the components from the designs in the components database and select a number of materials for the number of the components to form the number of boundaries for the wireless networks.

Abstract: Nondestructive inspection of a plurality of aircraft hat stiffeners includes exciting cavities of the stiffeners with electromagnetic radiation, and analyzing electromagnetic field responses of the cavities to detect state changes of the stiffeners.

Abstract: An aircraft structure having properties of an electromagnetic cavity is used to enhance wireless transmission for at least one of wireless data communication and wireless power transmission.

Abstract: Nondestructive inspection (NDI) on a structure having a cavity includes exciting the structure with electromagnetic radiation and analyzing the cavity's electromagnetic field response to detect a state change of the structure.

Abstract: Nondestructive inspection of a plurality of aircraft hat stiffeners includes exciting cavities of the stiffeners with electromagnetic radiation, and analyzing electromagnetic field responses of the cavities to detect state changes of the stiffeners.

Abstract: An aircraft structure having properties of an electromagnetic cavity is used to enhance wireless transmission for at least one of wireless data communication and wireless power transmission.

Abstract: Nondestructive inspection (NDI) on a structure having a cavity includes exciting the structure with electromagnetic radiation and analyzing the cavity's electromagnetic field response to detect a state change of the structure.