2results about How to "Solve technical problems with low precision" patented technology

This invention discloses a tool holder for ultrasonic machining, applicable to the field of ultrasonic machining technology. The tool holder includes, from top to bottom, an ultrasonic transducer, an amplitude transformer, a detection unit, and a chuck. The ultrasonic transducer emits a predetermined ultrasonic signal. The amplitude transformer converts the ultrasonic signal emitted by the transducer into mechanical vibration and transmits it to the chuck through the detection unit. The detection unit includes a housing, a support frame, and sensors. The top of the housing is fixedly connected to the amplitude transformer, and the bottom of the housing is fixedly connected to the chuck. The support frame is located inside the housing, and multi-directional hinges are provided on each inner wall side of the support frame near the housing. These multi-directional hinges are connected to the sensors, and the support frame ensures that the sensors remain in contact with the inner walls of the housing at all times. The sensors detect cutting deformation of the housing in different dimensions. The chuck is used to mount the cutting tool. The support frame and multi-directional hinges ensure that multiple sensors remain in contact with the inner walls of the housing at all times, enabling the sensors to detect multi-dimensional deformation of the housing.

This application provides a method, apparatus, medium, and device for retrieving multimodal data. The method includes: responding to receiving a query instruction indicating that input data belongs to the multimodal data, encoding the input data to obtain a query vector corresponding to the query instruction; using the query vector to perform a vector search in a preset vector database to obtain a set of candidate vectors; and based on each candidate vector in the set of candidate vectors, determining a preset entity corresponding to each candidate vector and associated data of the preset entity corresponding to each candidate vector from a preset knowledge graph to obtain a set of candidate associated data, thereby determining the query result corresponding to the query instruction. This application solves the technical problem of low accuracy in multimodal data retrieval in related technologies, achieving the effect of improving the accuracy of multimodal data retrieval.