2results about How to "Increase dynamics" patented technology

The application discloses a kind of laser scanning cutting endoscope robots based on carbon fiber paper micro-vibration mirror, the endoscope robot is fixedly installed with paper transmission structure in one end of support structure, and the other end is fixedly installed with GRIN lens;Fixed mirror, X galvanometer and Y galvanometer are fixedly installed in paper transmission structure, and optical path is formed by optical fiber, GRIN lens, fixed mirror, X galvanometer and Y galvanometer;First piezoelectric bimorph driver and second piezoelectric bimorph driver are piezoelectric bimorph driver installed between support structure and paper transmission structure;First piezoelectric bimorph driver is used to drive X galvanometer to rotate around Y axis and / or by paper transmission structure;Second piezoelectric bimorph driver is used to drive Y galvanometer to rotate around Z axis by paper transmission structure.The above-mentioned endoscope robot is compact, light, stable in motion and has excellent dynamic performance by using piezoelectric bimorph driver and paper transmission structure.

The application provides an event camera-based vibration measurement method and device, equipment and a storage medium. The method comprises the following steps: converting an event stream corresponding to a vibrating object collected by an event camera into a complex image; decomposing the complex image into a plurality of subbands of different scales and directions; calculating a phase change signal of the vibrating object in combination with phase information of each subband; and determining a vibration frequency of the vibrating object according to the phase change signal. Through implementation of the application, the vibration frequency of the object is measured by using a non-contact measurement method. The event camera has the characteristics of high time resolution and high dynamicity, can support capturing high-speed motion of the object under low brightness conditions, and the collected data is only related to the motion of the object, thereby reducing data redundancy. Therefore, the accuracy of the vibration measurement result is effectively improved, and the data processing amount is reduced.