4 results about "Annular field" patented technology

A gasket arrangement (G) for sealing between two corrugated heat transfer plates (5) is provided. The gasket arrangement (G) includes an annular field gasket portion (41) surrounding a field gasket region (A1) and a plurality of annular ring gasket portions (47c, 47d, 47e, 47f) arranged outside the field gasket region (A1). Each of the plurality of annular ring gasket portions (47c, 47d, 47e, 47f) surrounds an annular gasket region (A2), the annular gasket region (A2) being smaller than the field gasket region (A1) and extending in a central extending plane (p2) of the annular gasket portions (47c, 47d, 47e, 47f). The third annular gasket portion (47c) and the fourth annular gasket portion (47d) of the plurality of annular ring gasket portions (47c, 47d, 47e, 47f) are arranged on opposite sides of the transverse central axis (T1) of the field gasket region (A1). The gasket arrangement (G) is characterized in that the fifth annular gasket portion (47e) of the plurality of annular gasket portions (47c, 47d, 47e, 47f) is arranged on the same side of the transverse central axis (T1) as the third annular gasket portion (47c). Furthermore, the third annular gasket portion (47c) and the fifth annular gasket portion (47e) are arranged on opposite sides of the longitudinal central axis (L1) of the field gasket region (A1). Moreover, the longitudinal central axis (L1) of the field gasket region (A1) extends through one of the plurality of annular gasket portions (47c, 47d, 47e, 47f).

This invention discloses a spaceborne near-space horizontal two-dimensional wind field interferometric imager based on a ring field of view and a full-link simulation method. The imager includes an optical system, a detector, and a data processing unit. The optical system includes a front conical mirror, a field stop, a collimating lens group, a Fabry-Perot interferometer, a narrowband filter assembly, and an imaging lens arranged sequentially along the optical path. This invention improves the spatiotemporal resolution of the instrument's detection.

The application discloses a kind of tunnel lining defect ring view detection methods, belong to tunnel detection technical field, can solve the problems of serious annular field distortion, large difference in multiple types of defect characteristics, insufficient use of spatial position information in existing tunnel lining detection.The method comprises the following steps: S1, collecting the annular field image of the inner wall of the tunnel, and converting the annular field image into a cylindrical expansion image;S2, scale feature extraction is carried out on the cylindrical expansion image to obtain a spatial scale feature map;S3, the spatial scale feature map is segmented and depth estimated respectively, and the corresponding defect feature map and depth feature map are obtained;S4, the defect feature map and the depth feature map are fused by gating, and the fusion feature map is obtained.The defect detection result is obtained by defect segmentation decoding of the fusion feature map.The application is used for tunnel lining defect detection.

The present application relates to a kind of star simulator annular field coil electromagnetic force analysis structure optimization method and system, it is related to star simulator annular field coil electromagnetic force structure optimization technical field, including according to the spatial constraint of vacuum chamber geometric characteristics and external modular coil, determine the arrangement scheme parameter of star simulator annular field coil;Utilize arrangement scheme parameter to construct coil three-dimensional geometric model, solve electromagnetic volume force distribution;Identify peak load area and extract single-turn coil equivalent load;Through cable deflection experiment, the equivalent Young's modulus of composite cable is determined, the equivalent elastic modulus parameter of cable is obtained;Equivalent load and equivalent elastic modulus parameter are combined with single-turn coil, establish fixture-cable coupling finite element model, determine the key structure size of fixture and verify strength criterion.The present application has beneficial effect for significantly improving the installation reliability and anti-electromagnetic force ability of annular field coil, ensure the accuracy of magnetic field configuration and the stability of device operation.