Abstract: A computing system may mount on an ownship vehicle. The computing system may include a memory configured to store three-dimensional radar data indicating weather proximate to the ownship vehicle; a touchscreen; and processing circuitry. The processing circuitry is configured to output, for display by the touchscreen, a two-dimensional overhead profile of the weather proximate to the ownship vehicle; receive, from the touchscreen, an indication of a selected region of the weather proximate to the ownship vehicle; determine, based on the three-dimensional radar data, additional information corresponding to the selected region of the weather; and output, for display by the touchscreen, the two-dimensional overhead profile of the weather overlaid with an indication of the additional information about the selected region.

Abstract: A computing system may mount on an ownship vehicle. The computing system may include a memory configured to store three-dimensional radar data indicating weather proximate to the ownship vehicle; a touchscreen; and processing circuitry. The processing circuitry is configured to output, for display by the touchscreen, a two-dimensional overhead profile of the weather proximate to the ownship vehicle; receive, from the touchscreen, an indication of a selected region of the weather proximate to the ownship vehicle; determine, based on the three-dimensional radar data, additional information corresponding to the selected region of the weather; and output, for display by the touchscreen, the two-dimensional overhead profile of the weather overlaid with an indication of the additional information about the selected region.

Abstract: A radar altimeter is provided that includes a transmitter operable to generate a radio signal at a modulation frequency, and transmit the radio signal toward a ground surface for reflection therefrom to thereby propagate a reflected radio signal. The radar altimeter also includes a receiver operable to receive the reflected radio signal, and determine the altitude of the aircraft based on the modulation frequency of the radio signal and a difference frequency derived from the radio signal and the reflected radio signal. The receiver is also operable to control the transmitter so as to vary the modulation frequency of the radio signal based on the altitude of the aircraft. Preferably, the modulation frequency of the radio signal is greater at lower altitudes than at higher altitudes.

Abstract: A sonar sensor comprising a substantially non-corrodible housing and a fluidic gainblock disposed therein. In addition, one or more fluid-filled laminar proportional amplifiers are arranged either in series or in parallel and contained within the fluidic gainblock. Means are provided to produce a jet within each laminar proportional amplifier, which is then modulated by incoming acoustic signals. The pressure caused by diverting the jet from its equilibrium path is proportional to, but greater than, the incoming acoustic signal. Hydrophones are used to convert the amplified acoustic signal into an electrical signal. In one embodiment, the fluidic gainblock is free-flooded and open to the liquid environment in which it is used, obviating the need for pressure equalization. In another embodiment, the fluidic gainblock is provided with filtering means for prevent the accumulation of sediment within the cavities making up the laminar proportional amplifiers.

Abstract: A heart-sound monitor and esophageal stethoscope which makes use of fluidic aminar proportional amplifiers (LPAs). These LPA's are used to sense and amplify incoming acoustic pressure signals, such as heart signals. Moreover, the fluidic monitor is able to monitor a fetus heartbeat while eliminating the acoustic interference present from the mother's heartbeat. In this case, the LPA acts not only as an amplifier, but as an acoustic filter as well.

Abstract: A fluidic system is provided in which the laminar flow operating range has een increased. The fluidic system uses stacks of laminate plates in which filter means is placed between vent and exhaust laminates for breaking up eddies and flow noise created from supply nozzle and vent areas.

Abstract: A fluidic partial pressure sensor for obtaining a direct indication of the partial pressure of a gas constituent in a mixture relative to a reference gas. A fluidic bridge's geometry is so designed and structured that if the pressure across the bridge is maintained constant, the pressure differential between the two channels thereby becomes directly proportional to the partial pressure of the gas constituent of interest. A typical bridge sensor therefore can provide a direct indication of partial pressure. The geometry of the bridge network is chosen so that the sensor gain constant varies linearly with ambient pressure.

Abstract: A fluidic, volume-cycled respirator circuit comprising a fluidic flowmeter, a tidal volume selection controller and an inlet valve. The flowmeter is connected to the controller through a transmitting means which transmits gas flow frequency signals. Said controller is then connected to the inlet valve, which is connected back to the flowmeter; hence, the respirator circuit is complete. The tidal volume selection controller may operate by either fluidics, electronics, or the combination of the two. The flowmeter facilitates supply of air to the patient. The amount of air supplied is controlled by the tidal volume selection controller which senses inspiration and gas flow frequency. The controller is equipped with a timer back-up system in the event that either the system or the patient fail to respond. The valve is operated at the direction of the tidal volume selection controller. The valve is open during the inspiratory phase and closed during the exhalation phase.