4 results about "Reference plane" patented technology

A probe assembly for use in electrical measurement of a device under test. The probe assembly comprises a plate-like probe base plate with bending deformation produced in a free state without load, and a plurality of probes formed on one face of the probe base plate to project from the face. All the tips of the probes are positioned on the same plane parallel to an imaginary reference plane of the probe base plate.

Instrument coupling interfaces and related methods are disclosed herein, e.g., for coupling a surgical instrument to a navigation array or other component. An exemplary coupling can include a first coupling interface associated with a first object, such as a surgical instrument, and a second coupling interface associated with a second object, such as a navigation array. The coupling interfaces can be configured to ensure that, when mated, the first and second objects are disposed in a known position and orientation relative to one another and blocked from relative movement in all six degrees of freedom. The interfaces can have a geometry that is not overdetermined, minimizing or eliminating navigation inaccuracy associated with system tolerances. An exemplary coupling can include counterpart centering features for blocking X-axis translation and Y-axis translation, counterpart rotation stops for blocking Z-axis rotation, counterpart reference planes for blocking X-axis rotation, Y-axis rotation, and Z-axis translation in a first direction, and a locking element for blocking Z-axis translation in a second, opposite direction.

The invention provides an optical cable hanging protection hook and a hanging method thereof, and the optical cable hanging protection hook is formed by bending an elastic line, and comprises a first support arm formed by one end of the elastic line, a second support arm formed by the other end of the elastic line, and a main body hook part which is formed by bending the middle part of the elastic line into a double-line lifting hook; wherein the first support arm and the second support arm are used for hanging the optical cable suspension protection hook on a steel strand, and the main body hook part is used for supporting an optical cable. When the optical cable hanging protection hook is hung on a steel strand, the first supporting arm and the second supporting arm are roughly located in a vertical reference plane where the steel strand is located, and the symmetry plane of the double-wire lifting hook of the main body hook part is roughly perpendicular to the reference plane. The hook-shaped structure of the first top hook of the first support arm is approximately parallel to the reference plane, and the hook-shaped structure of the second top hook of the second support arm is approximately perpendicular to the reference plane and deflects towards the direction away from the main body hook part. The optical cable hanging protection hook greatly improves the efficiency of optical cable line erection and reduces the labor intensity of constructors.