This Multiband Software Defined Radio (SDR) sensor system proposal will demonstrate the ability to operate within multiple frequency bands and across multiple technology platforms in a single transceiver. The center frequencies and bandwidths chosen are representative of current demonstrated commercial or research devices and bands used: 400 MHz, 900 MHz, and 2.4 GHz ISM bands, with bandwidths of approximately 10 MHz, 26 MHz, and 100 MHz, respectively. SAW sensor development proposed is for a cryogenic to high temperature sensor, high temperature strain sensor, and magnetic field sensor. Demonstration of other passive technology sensors will also be demonstrated.
This proposal presents a series of technical objectives that will have a significant benefit to a broad range of wireless sensors, and advance the state-of-the-art and capabilities in sensor technology. The effort will demonstrate a multiband software defined radio (SDR) sensor transceiver that can interrogate any passive resonator or delay line technology sensor within a given band. The proposed sensor systems will lead to improved safety, reduced test, and space flight costs by providing real-time analysis of data, information, and knowledge through meshed wireless networking.
The SDR system approach has the following advantages and advancements:
Wireless measurements on rotating parts - Temperature & strain, Wireless passive sensors in wings, fuselage, or other inaccessible points - Temperature & strain, Wireless sensor networking and SHM master monitor, Wireless massively deployed sensors, Inflatable habitats - Inside/outside temperature, Gas monitoring, Strain/stress of components, Hydrogen gas sensing - Launch vehicles & Ground facilities, Cryogenic gas and liquid monitoring for launch vehicles
Airplane cabin & landing gear SHM, Sensor monitoring of inaccessible areas, within the fuselage or wings of airframes, Hydrogen, methane, ammonia, humidity, gas and other wireless passive sensors - Hydrogen fueled vehicles, Gas cylinders, Nuclear reactors, Transportation (Bridges, highways, etc.) wireless monitoring - Concrete curing, Corrosion, Strain, Military and commercial aircraft SHM, Engine/ turbine monitoring - Gear temperature, Exhaust tempersture, Cryogenic liquid and gas monitoring