초록 ▼

An analog electro-fluidic signal transducer utilizing one or a tandem series of laminar proportional amplifiers. The transducer has input passages at a varying pressure differential produced by movements of a piezoelectric bender bimorph between opposed nozzles in a pressurized chamber. The pressure

An analog electro-fluidic signal transducer utilizing one or a tandem series of laminar proportional amplifiers. The transducer has input passages at a varying pressure differential produced by movements of a piezoelectric bender bimorph between opposed nozzles in a pressurized chamber. The pressure in the chamber and the excursion of the bender between the nozzles relative to the nozzle diameters are limited to minimize turbulence and achieve a pressure differential between the input passages that varies proportionally to or as an analog of a voltage applied to the bender. The pressure differential between the input passages is amplified by the amplifier or plural amplifiers in tandem series.

대표청구항 ▼

An analog electro-fluidic signal transducer comprising, in combination, a housing defining a first chamber adapted for connection to a first source of fluid pressure, a pair of input passages each having at one end thereof a nozzle open to said chamber, the nozzles being mutually opposed and a prede

An analog electro-fluidic signal transducer comprising, in combination, a housing defining a first chamber adapted for connection to a first source of fluid pressure, a pair of input passages each having at one end thereof a nozzle open to said chamber, the nozzles being mutually opposed and a predetermined space within said first chamber separating said nozzles, a cantilever mounted piezoelectric bender having a portion thereof located in said predetermined space between the nozzles, said bender being bendable to move said portion toward and away from said nozzles respectively and means for connecting the bender to a voltage source, and a laminar proportional amplifier defining a second chamber, means adapted for connection to a second source of fluid pressure and for directing a laminar jet into the second chamber, a pair of inlets on opposing sides of the jet and connected to said input passages, and a pair of output passages diverging from a flow divider in the path of the jet and downstream of said inlets.