Soft, bistable valve acting as a pneumatic switch.

Slides:

Advertisements

Similar presentations

Demonstrations I, II, and III.

Advertisements

Principle of asymmetric lengthening of tip enables active steering.

Soft robotic device applied to the RV in a pressure overload model of RHF. Soft robotic device applied to the RV in a pressure overload model of RHF. (A.

Self-folding triangular devices at two scales.

Degradation of MSP samples in 37°C DPBS solution.

Basic design concept of human mimetic humanoid.

TPAD controller schematic and testing for WPC.

TPAD controller performance for three force components.

Cable-driven system diagram for structure matrix.

Demonstration of high-speed and precise actuation.

Three different types of transfer functions with a codomain of [0,1].

TPAD training protocol.

Fabrication of bilayer actuator composed of a hygroscopically active layer with aligned nanofibers and an inactive layer. Fabrication of bilayer actuator.

Self-sensing of actuator position.

Workspace comparison of Delta robots.

Size-selective transport by varying optical intensity and speed.

Ex vivo testing of the soft robotic devices.

Soft robotic VAD implementations, control schemes, and HF models.

Gripper that grasps autonomously.

Power-free sterilization of culture plate.

Autonomous soft robot with earthwork-like locomotion using an air source of constant pressure. Autonomous soft robot with earthwork-like locomotion using.

Pneumatic oscillator driven by an air source of constant pressure.

The foldable robotic arm with seven modules assembled in series.

Details of the soft, bistable valve.

Prosthesis grasping and control.

Tukey boxplots overlaid on data points from objective and subjective measures, displaying results from study 1. Tukey boxplots overlaid on data points.

Tendon path design of the module.

Soft robotic VAD implementations, control schemes, and HF models.

Tactile features for prosthesis perception.

The milliDelta: a millimeter-scale Delta robot.

Size-selective transport by varying optical intensity and speed.

Quasi-static and dynamic trajectories.

Online verification using reachable occupancies.

Principle of asymmetric lengthening of tip enables active steering.

Soft mechanotherapy device for the lower leg.

Experimental characterization of the milliDelta’s quasi-static workspace (yellow) compared with the theoretical workspace (blue) generated by the kinematic.

Experimental results for tremor reduction.

Effect of slenderness on optimal shapes.

SoFi system overview. SoFi system overview. (Top, left to right) Soft robotic fish and diver interface module. (Bottom, left to right) Subcomponents of.

A summary of different energy sources for robotics.

Translation of a spherical object.

Self-sensing of actuator position.

Variability in sensation intensity due to changes in impedance during electrotactile stimulation. Variability in sensation intensity due to changes in.

Fig. 1 Map of water stress and shale plays.

The applications of the biohybrid structural color hydrogels in a heart-on-a-chip system. The applications of the biohybrid structural color hydrogels.

Brain-computer interfaces.

Experimental setup for workspace, bandwidth, and force characterization of the milliDelta. Experimental setup for workspace, bandwidth, and force characterization.

Details of an implementation of a mechanism within the control chambers for selective lengthening of the sides of the soft robot. Details of an implementation.

Untethered kirigami-skinned soft crawlers.

Degradation of MSP samples in 37°C DPBS solution.

Fig. 3 Swarm material properties.

Soft robotic device applied to the RV in a pressure overload model of RHF. Soft robotic device applied to the RV in a pressure overload model of RHF. (A.

Results of the performance study experiment: Bending (sample size: n = 5). Results of the performance study experiment: Bending (sample size: n = 5). (A)

Underwater observatory.

Bioinspiration and working principle of FEDEA.

Fig. 1 Concept of the livestock transition in China between 1980 and Concept of the livestock transition in China between 1980 and The left-

Folding unit based on the plane symmetric Bricard linkage.

Object manipulations performed by our biohybrid robots.

Galloping-like gait with the design of a two-legged robot.

AEGIS autonomous targeting process.

Fig. 2 Characterizing the performance of msTENG.

Response of the actuator to different stimulations.

Jetting phase analysis.

Fig. 3 Scheme of the system connected to the microfluidic chamber.

The biomimetic pressure sensing ability.

Floating microrobots with different preferred magnetization directions: Fabrication and control principles. Floating microrobots with different preferred.

Breakdown of incorrect participant responses.

Fig. 4 Spatial mapping of the distribution and intensity of industrial fishing catch. Spatial mapping of the distribution and intensity of industrial fishing.

Onboard sensors enable state feedback and closed-loop control of robotic skins. Onboard sensors enable state feedback and closed-loop control of robotic.

Fig. 4 Effects of individual picosecond and microsecond pulses.

Presentation transcript:

Soft, bistable valve acting as a pneumatic switch. Soft, bistable valve acting as a pneumatic switch. (A) The bottom tubing is connected to an air supply of constant pressure PS. The top tubing and the top chamber are connected to the atmosphere. The top and the bottom tubing are joined together behind the valve to form the output P of the pneumatic switch. The pressure in the bottom chamber is controlled by a variable pressure controller (P+). When the membrane bends downward, it kinks the bottom tubing; when it is bent upward, it kinks the top tubing. (B) Critical pressures ΔP1 and ΔP2 as a function of PS. (C) Output of the valve for different PS values and rectangular pulses as control input (P+ = 11 kPa). (D) Response of the valve to two rectangular pulses (P+ = 11 kPa) as the control input. A sinusoidal wave (frequency, 0.5 Hz; amplitude, 5 kPa) is superposed to the second pulse. H = 3 mm, θ = 87.5°. Philipp Rothemund et al. Sci. Robotics 2018;3:eaar7986 Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works