Abstract: A swing analysis system includes a housing having an upper surface and a ball support mounted to the upper surface. A first array of optical sensors is mounted in the upper surface on a first side of the ball support, and a second array of optical sensors is mounted in the upper surface on a second side of the ball support, opposite the first array of sensors. A third array of optical sensors in mounted in the upper surface, with the sensors positioned around the ball support. A controller is coupled to each sensor of the three arrays of sensors for receiving output signals therefrom. The controller monitors the output signals for change in state events and creates data files containing a sequence of events with associated timestamps. The computer is programmed to use the data files to calculate swing path angle, club head speed, club head angle, club head lateral alignment with respect to the ball support, and club head height of an implement (e.g., a golf club) swung over the housing.

Abstract: An electrical enclosure in accordance with the principles of the invention includes one or more conductive straps connecting an enclosure door to an enclosure cabinet. The conductive strap may include a detachable connection at one, or both, ends and may be employed in combination with a conventional conductive gasket to form a substantially continuous conductive enclosure for electronics equipment. The conductive strap may include a detachable connection at one or both ends. The body of the conductive strap may be composed of solid or braided conductor material, such as a solid metal wire or braided metal wire. The strap may be employed in conjunction with a conventional conductive gasket and is connected to the gasket, the cabinet door, and the cabinet body in a manner that ensures that all three components are held at substantially the same electrical potential.