fig8

Figure 8. Fluidic-based soft control systems (A) A check-valve and switch-valve in both the open and closed state based on differential pressure and their corresponding component state symbol along with the analog diode and p-channel JFET transistor components. Reproduced with permission^[145]. Copyright 2010, Springer Nature; (B) Showing the different components for actuation, control and sensing to create autonomous crawling systems combining bistable valves, soft logic gates and soft pneumatic actuators^[143,144]. Reproduced with permission^[143]. Copyright 2021, AAAS. JFET: Junction field-effect transistor; AAAS: American Association for the Advancement of Science.