Abstract: The present subject matter relates to systems, devices, and methods for agricultural sample collection. In one aspect, a sample collection system includes an aerial robotic platform, an arm assembly coupled to the aerial robotic platform and comprising an arm that extends away from the aerial robotic platform, and a sample collector connected to a distal end of the arm, wherein the sample collector is configured to selectively remove one or more samples of agricultural material from a plant to be analyzed.

Abstract: An articulating joint for coupling an accessory to a support comprises a platform, a base, and a wedge. The platform couples to one of the support and the accessory, and the base couples to the other of the support and the accessory. The platform includes a hinge having a bore and teeth positioned radially around the bore. The base includes an undercut and a complementary hinge having a thru hole. The wedge includes complementary teeth positioned radially around a passageway and a ramp that cooperates with the undercut of the base. A shaft having a threaded portion engages a threaded insert to couple the hinge of the platform, the wedge, and the complementary hinge of the base. Rotating the shaft to a locked position causes the teeth of the platform to mesh with the complementary teeth of the wedge to retain the platform in an orientation relative to the base.

Abstract: An articulating joint for coupling an accessory to a support comprises a platform, a base, and a wedge. The platform couples to one of the support and the accessory, and the base couples to the other of the support and the accessory. The platform includes a hinge having a bore and teeth positioned radially around the bore. The base includes an undercut and a complementary hinge having a thru hole. The wedge includes complementary teeth positioned radially around a passageway and a ramp that cooperates with the undercut of the base. A shaft having a threaded portion engages a threaded insert to couple the hinge of the platform, the wedge, and the complementary hinge of the base. Rotating the shaft to a locked position causes the teeth of the platform to mesh with the complementary teeth of the wedge to retain the platform in an orientation relative to the base.

Abstract: An articulating joint for coupling an accessory to a support comprises a platform, a base, and a wedge. The platform couples to one of the support and the accessory, and the base couples to the other of the support and the accessory. The platform includes a hinge having a bore and teeth positioned radially around the bore. The base includes an undercut and a complementary hinge having a thru hole. The wedge includes complementary teeth positioned radially around a passageway and a ramp that cooperates with the undercut of the base. A shaft having a threaded portion engages a threaded insert to couple the hinge of the platform, the wedge, and the complementary hinge of the base. Rotating the shaft to a locked position causes the teeth of the platform to mesh with the complementary teeth of the wedge to retain the platform in an orientation relative to the base.

Abstract: An articulating joint for coupling an accessory to a support comprises a platform, a base, and a wedge. The platform couples to one of the support and the accessory, and the base couples to the other of the support and the accessory. The platform includes a hinge having a bore and teeth positioned radially around the bore. The base includes an undercut and a complementary hinge having a thru hole. The wedge includes complementary teeth positioned radially around a passageway and a ramp that cooperates with the undercut of the base. A shaft having a threaded portion engages a threaded insert to couple the hinge of the platform, the wedge, and the complementary hinge of the base. Rotating the shaft to a locked position causes the teeth of the platform to mesh with the complementary teeth of the wedge to retain the platform in an orientation relative to the base.

Abstract: The present subject matter relates to systems, devices, and methods for agricultural sample collection. In one aspect, a sample collection system includes an aerial robotic platform, an arm assembly coupled to the aerial robotic platform and comprising an arm that extends away from the aerial robotic platform, and a sample collector connected to a distal end of the arm, wherein the sample collector is configured to selectively remove one or more samples of agricultural material from a plant to be analyzed.