A tool-holding arm includes a plurality of links and a tool coupling that removably secures a tool to the tool-holding arm. A first fluid spring provides a gravity-counteracting force to the tool-holding arm. A locking mechanism selectively locks the first fluid spring. An adjustment mechanism selectively adjusts an amount of the gravity-counteracting force provided by the first fluid spring.

A gimbal arrangement includes a static structure, a gimbal supported for rotation relative to the static structure, an actuator operably connected to the gimbal and configured to rotate the gimbal relative to the static structure, and a magnetic soft stop. The magnetic soft stop is connected between the static structure and the gimbal to limit rotation of the gimbal relative to the static structure to within a predetermined range. Sensor systems and imaging methods are also described.

A method includes receiving selection of a target within an image captured by an image sensor of a payload and displayed on a user interface of the payload, detecting a deviation of the target from an expected target state within the image, generating, based at least partly on the deviation, a payload control signal including a first angular velocity for rotating the payload about an axis of the carrier to reduce the deviation about the axis in a subsequent image, and generating a base support control signal including a second angular velocity for rotating the payload with respect to the axis. When the first and second angular velocities are received, the carrier is controlled to rotate the payload at a third angular velocity about the axis. The third angular velocity is the first angular velocity, the second angular velocity, or a combination of both.

A method of stabilizing a payload fitted in a carrier includes providing a first carrier component of the carrier, supporting a second carrier component of the carrier using the first carrier component, and supporting a third carrier component of the carrier using the second carrier component. The first carrier component is configured to permit rotation of the payload about a pitch axis. The second carrier component is configured to permit rotation of the payload about a yaw axis. The third carrier component is configured to permit rotation of the payload about a roll axis and connects to the payload.

A balancing device for a rotary apparatus including a rotary body which is configured to pivot or swivel about at least one rotary shaft is provided. The balancing device includes a magnet assembly and a torque adjusting mechanism. The magnet assembly includes a combination of two or more magnets, and the torque adjusting mechanism is configured to adjust a torque generated by the combination of the two or more magnets. The balancing device generates an output torque in the form of a cosine curve or sine curve which optimally matches with an unbalancing torque of the rotary body. The balancing device has a small size and is invulnerable to fatigue failure.

A load-stabilizing apparatus includes a load-connecting member configured to carry a load, a connecting assembly connected to the load-connecting member, and a stabilizing motor drivingly connected to the connecting assembly and configured to drive the connecting assembly to move, such that the connecting assembly drives the load-connecting member to move translationally.

Knuckle joint assembly for a medical device support system. The knuckle joint assembly includes a cartridge assembly that includes a cartridge housing and a rotary bearing. The cartridge housing includes a bore having a central axis and a bearing mount in the bore. The rotary bearing is press fitted in the bearing mount and configured to receive axially therethrough a spindle to rotatably support the spindle about the central axis. The knuckle joint assembly includes a retaining clip and a retaining pin. The retaining clip is selectively movable to disengage and engage a groove in a spindle to respectively support or release the spindle along a central axis. The retaining pin is movable between a first position to allow movement of the retaining clip between positions but prevent removal of the retaining clip, and a second position to block movement of the retaining clip from the engaged position.

A display stand holder with slide rail structure includes a stand body, a pivot member, a display assembly module, and one or more constant-force springs. The stand body has a top end. The pivot member has a first end and a second end. The first end is provided with a pivot portion. The pivot portion is pivotally connected to the top end of the stand body, and the second end is away from the top end with respect to the first end. The display assembly module is disposed at the second end of the pivot member. The display module includes a slide rail assembly. The slide rail assembly includes a guide member and a slide member, and the slide member is slidably assembled on the guide member. The constant-force spring is connected between the guide member and the slide member.

A gimbal handle includes an enclosure including an accommodation space, a main control board accommodated in the accommodation space, and an electrical contact member provided at the main control board and electrically connected to the main control board. The electrical contact member penetrates the enclosure to expose to an outside of the enclosure. The electrical contact member is configured to be electrically connected to an adapter.

The description relates to cooperatively controlling devices based upon their location and pose. One example can receive first sensor data associated with a first device and second sensor data associated with a second device. This example can analyze the first sensor data and the second sensor data to determine relative locations and poses of the first device relative to the second device and can supply the locations and poses to enable content to be collectively presented across the devices based upon the relative locations and poses.