A fluidic device comprises a channel, a gate, and one or more additional elements. The channel is configured to transport a fluid from a source to a drain. The gate includes a chamber with an adjustable volume that affects fluid flow within the channel by displacing a wall of the channel toward an opposite wall of the channel based in part on fluid pressure within the chamber exceeding a threshold pressure. A high pressure state of the gate corresponds to a first chamber size and a first flow rate of the fluid. A low pressure state of the gate corresponds to a second chamber size that is smaller than the first chamber size and a second flow rate that is greater than the first flow rate. The additional elements are configured to reduce the threshold pressure past which the chamber decreases the cross-sectional area of the channel.

In one aspect, system to form a pneumatically-actuated transistor logic includes a first deformable conduit; a first extensible bladder disposed at a first location along the first conduit; a first structure in proximity with the first bladder and configured to constrain expansion of the first bladder; wherein the first structure and the first bladder are configured to allow flow of fluid through the first conduit when the first bladder is in a first state and to prevent flow of fluid through the first conduit when the first bladder is in a second state.

A fluidic device comprises a channel, a gate, and one or more additional elements. The channel is configured to transport a fluid from a source to a drain. The gate includes a chamber with an adjustable volume that affects fluid flow within the channel by displacing a wall of the channel toward an opposite wall of the channel based in part on fluid pressure within the chamber exceeding a threshold pressure. A high pressure state of the gate corresponds to a first chamber size and a first flow rate of the fluid. A low pressure state of the gate corresponds to a second chamber size that is smaller than the first chamber size and a second flow rate that is greater than the first flow rate. The additional elements are configured to reduce the threshold pressure past which the chamber decreases the cross-sectional area of the channel.

In some examples, a device includes a first fluidic amplifier stage, configured to receive a fluidic input and provide a first stage fluidic output, and a second fluidic amplifier stage, configured to receive the first stage fluidic output and provide a second stage fluidic output. The first fluidic amplifier stage may include a fluidic valve, for example having a source, a gate, and a drain. The fluidic input may be connected to the gate of the fluidic valve through a fluid channel, and a fluid flow between the source and the drain of the fluidic valve may be controlled by the fluidic input. An example device may be configured to provide a fluidic output, wherein the fluidic output is based on the fluidic input, and the fluidic output may be provided to a fluidic load such as an actuator.

A fluidic device controls fluid flow in channel from a source to a drain. In some embodiments, the fluidic device comprises a channel and a gate. The channel is configured to transport a fluid from the source to the drain. The gate controls a rate of fluid flow in the channel in accordance with the fluid pressure within the gate. Specifically, the gate is configured to induce a first flow rate of the fluid in the channel in accordance with a low pressure state of the gate, and a second flow rate of the fluid in the channel in accordance with a high pressure state of the gate. In certain embodiments, the first flow rate is greater than the second flow rate. In alternative embodiments, the second flow rate is greater than the first flow rate.

A fluidic device controls fluid flow in channel from a source to a drain. In some embodiments, the fluidic device comprises a channel and a gate. The channel is configured to transport a fluid from the source to the drain. The gate controls a rate of fluid flow in the channel in accordance with the fluid pressure within the gate. Specifically, the gate is configured to induce a first flow rate of the fluid in the channel in accordance with a low pressure state of the gate, and a second flow rate of the fluid in the channel in accordance with a high pressure state of the gate. In certain embodiments, the first flow rate is greater than the second flow rate. In alternative embodiments, the second flow rate is greater than the first flow rate.

A pneumatic amplifier includes a valve body, a first comparison chamber, a third comparison chamber and a second comparison chamber. A first diaphragm and a second diaphragm are arranged in the first comparison chamber and fixed to the valve body. A mounting plate A is fixedly arranged between the first diaphragm and the second diaphragm. A seventh diaphragm, an eighth diaphragm, a ninth diaphragm and a tenth diaphragm are arranged in the second comparison chamber and fixedly arranged on the valve body. A mounting plate C is fixedly arranged among the seventh diaphragm, the eighth diaphragm, the ninth diaphragm and the tenth diaphragm. A third diaphragm, a fourth diaphragm, a fifth diaphragm and a sixth diaphragm are arranged in the third comparison chamber and fixed to the valve body. A mounting plate B is fixedly arranged among the third diaphragm, the fourth diaphragm, the fifth diaphragm and the sixth diaphragm.

A pneumatic amplifier includes a valve body, a first comparison chamber, a third comparison chamber and a second comparison chamber. A first diaphragm and a second diaphragm are arranged in the first comparison chamber and fixed to the valve body. A mounting plate A is fixedly arranged between the first diaphragm and the second diaphragm. A seventh diaphragm, an eighth diaphragm, a ninth diaphragm and a tenth diaphragm are arranged in the second comparison chamber and fixedly arranged on the valve body. A mounting plate C is fixedly arranged among the seventh diaphragm, the eighth diaphragm, the ninth diaphragm and the tenth diaphragm. A third diaphragm, a fourth diaphragm, a fifth diaphragm and a sixth diaphragm are arranged in the third comparison chamber and fixed to the valve body. A mounting plate B is fixedly arranged among the third diaphragm, the fourth diaphragm, the fifth diaphragm and the sixth diaphragm.

A tension driven actuator (100) comprises a support structure (102) formed of a peripheral bounded wall (118) at least partially defining a fluid chamber (112), and a first elastic diaphragm (116) attached, under tension, to the support structure (102) and enclosing the fluid chamber (112) with the support structure (102). A pressurized fluid (110) is disposed in the fluid chamber (112), and a tension modifier structure (108) is attached to the first elastic diaphragm (116), and is under tension with the first elastic diaphragm (1 16). In response to application of an electrical field to the tension modifier structure (108), the tension modifier structure (108) transitions from a diaphragm tension position to a diaphragm relaxed position, such that the tension modifier structure (108) deforms and contracts in size, thereby reducing tension of the first elastic diaphragm (116) such that fluid pressure causes deflection of a portion of the first elastic diaphragm (116). The tension driven actuator (100) can be a variably controlled optical lens, or an actuator for other purposes.

A tension driven actuator (100) comprises a support structure (102) formed of a peripheral bounded wall (118) at least partially defining a fluid chamber (112), and a first elastic diaphragm (116) attached, under tension, to the support structure (102) and enclosing the fluid chamber (112) with the support structure (102). A pressurized fluid (110) is disposed in the fluid chamber (112), and a tension modifier structure (108) is attached to the first elastic diaphragm (116), and is under tension with the first elastic diaphragm (1 16). In response to application of an electrical field to the tension modifier structure (108), the tension modifier structure (108) transitions from a diaphragm tension position to a diaphragm relaxed position, such that the tension modifier structure (108) deforms and contracts in size, thereby reducing tension of the first elastic diaphragm (116) such that fluid pressure causes deflection of a portion of the first elastic diaphragm (116). The tension driven actuator (100) can be a variably controlled optical lens, or an actuator for other purposes.