FIG. 2 illustrates an example of an enclosure 200 for a sensor system (e.g. sensor system 180), according to an embodiment of the present disclosure. In some embodiments, features of the sensor system 180 of FIG. 1P can be implemented as part of the enclosure 200 of FIG. 2. For example, the controller 196 can be implemented as part of the enclosure 200 of FIG. 2. Deflector(s) (e.g., 116, 126, 136, 146, 156, 166, 176) may be positioned outside the enclosure 200. FIG. 2 may include a cover 262 to encase a sensor system, which may include LiDAR sensor 230 and cameras 232. For example, the cover 262 may be detachable or removable to allow easy access to the sensor system. In some embodiments, the cover 262 may rotate circularly, or in three hundred sixty degrees, relative to the sensor system about a central vertical axis of the cover 262. In some embodiments, the cover 262 may have a profile or shape that has a low wind resistance or coefficient of drag, and thereby reducing negative impacts to fuel economy of the autonomous vehicle. For example, the cover 262 may have a smooth surface so that a boundary layer formed between the air and the cover 262 would be laminar rather than turbulent. For example, the cover 262 may have a sleek angular profile. In some embodiments, the outer contour of the cover 262 can have multiple distinct sections (e.g., portions, regions, etc.) with different shapes. For example, a top portion of the cover 262 may have a circular dome shape with a first diameter measured at a base of the top portion and may encase the LiDAR sensor 230 of the autonomous vehicle. A middle portion of the cover 262 directly below the top portion may have a trapezoidal or truncated cone shape with a second diameter measured at a base on the middle portion, and the second diameter may be larger than the first diameter. A lower portion of the cover 262 directly below the middle portion may have a trapezoidal or truncated cone shape with a third diameter measured at a base on the lower portion. The third diameter may be larger than the second diameter. In other embodiments, the cover 262 may be entirely comprised of a single shape, such as a circular dome shape, a trapezoidal or truncated cone shape.
