2 results about "Ultra sensitive" patented technology

The application discloses a bionic scorpion hair airflow detection sensor device and an airflow detection device, and belongs to the technical field of sensors.The airflow detection sensor comprises a bionic scorpion hair stem, a hemispherical cage seam unit and a packaging circuit base.The bionic scorpion hair stem is made through 3D printing, the surface of the bionic scorpion hair stem simulates the flat asymmetry and rotating geometric shape of a scorpion hair, can effectively reduce flow field resistance and inhibit flow field vortex-induced vibration, and the four-direction surface of the hemispherical cage seam unit is respectively coated with a metal conductive layer to super-sensitively perceive the vibration mode and posture of the scorpion hair in the flow field environment.The bionic scorpion hair stem is pressed through deflection of a ball cage, so that the resistance values of the metal conductive layers in four different directions on the surface of the ball cage change, therefore, the change mode of the resistance values can effectively reflect information such as the flow rate, flow speed and flow direction of the airflow.

The present application relates to the technical field of piezoresistive functional materials, and particularly relates to a flexible piezoresistive sensor with an anti-impact structure and a preparation method thereof. The flexible piezoresistive sensor with the anti-impact structure comprises a first flexible anti-impact component and a second flexible anti-impact component which are oppositely arranged and have the same structure. The first flexible anti-impact component is provided with a plurality of hollow first tooth-shaped cavities, a first flexible loose layer wrapping one side of the first tooth-shaped cavities, and a first taper angle wrapping the other side of the first tooth-shaped cavities. The first flexible loose layer and the first taper angle surround the first tooth-shaped cavities to form closed and hollow first tooth-shaped cavities. The first flexible anti-impact component is connected with a first electrode. The second flexible anti-impact component has the same structure as the first flexible anti-impact component. The first taper angle is in contact with a second taper angle. The present application realizes a super-sensitive sensing function for subtle load changes. The first flexible loose layer and the second flexible loose layer are extruded, and the tooth-shaped cavities in the interior can greatly absorb the energy of violent loads.