Provided is a weighing device for determining a property of a rotor blade of a wind turbine. The weighing device includes a first seat for receiving the rotor blade at a first radial position of the rotator blade, a second seat for receiving the rotor blade at a second radial position of the rotor blade, a first weight cell for quantifying a first weight which is acting on the first weight cell, a second weight cell for quantifying a second weight which is acting on the second weight cell, and a first counterweight which is configured to alleviate the first weight. Notably, the first counterweight is lifted up from the ground when the rotor blade is received by the first seat of the weighing device. Furthermore, a method of determining the weight, the mass or the torque of a rotor blade of a wind turbine is also provided.

Provided is a weighing device for determining a property of a rotor blade of a wind turbine. The weighing device includes a first seat for receiving the rotor blade at a first radial position of the rotator blade, a second seat for receiving the rotor blade at a second radial position of the rotor blade, a first weight cell for quantifying a first weight which is acting on the first weight cell, a second weight cell for quantifying a second weight which is acting on the second weight cell, and a first counterweight which is configured to alleviate the first weight. Notably, the first counterweight is lifted up from the ground when the rotor blade is received by the first seat of the weighing device. Furthermore, a method of determining the weight, the mass or the torque of a rotor blade of a wind turbine is also provided.

Load cell lift-off protection devices with the load to be measured applied directly to the spherical upper surface of the load cell and with locking members which are locking grooves in the load cell force introducing parts to grooves in the structure of the weighed installation.

Provided is a weighing device for determining a property of a rotor blade of a wind turbine. The weighing device includes a first seat for receiving the rotor blade at a first radial position of the rotator blade, a second seat for receiving the rotor blade at a second radial position of the rotor blade, a first weight cell for quantifying a first weight which is acting on the first weight cell, a second weight cell for quantifying a second weight which is acting on the second weight cell, and a first counterweight which is configured to alleviate the first weight. Notably, the first counterweight is lifted up from the ground when the rotor blade is received by the first seat of the weighing device. Furthermore, a method of determining the weight, the mass or the torque of a rotor blade of a wind turbine is also provided.

Provided is a weighing device for determining a property of a rotor blade of a wind turbine. The weighing device includes a first seat for receiving the rotor blade at a first radial position of the rotator blade, a second seat for receiving the rotor blade at a second radial position of the rotor blade, a first weight cell for quantifying a first weight which is acting on the first weight cell, a second weight cell for quantifying a second weight which is acting on the second weight cell, and a first counterweight which is configured to alleviate the first weight. Notably, the first counterweight is lifted up from the ground when the rotor blade is received by the first seat of the weighing device. Furthermore, a method of determining the weight, the mass or the torque of a rotor blade of a wind turbine is also provided.

This invention involves a balance scale with a base, a balance arm support, a balance arm, a pointer, and a movable label plate containing descriptions. The balance arm has a tray on each end, where one tray holds an article representing mankind with sin, and the other tray holds an article representing the redemptive work of Jesus Christ. The articles on each tray are of equal or approximately equal weight. The scale rotates when the weight of the articles are added to or removed from the trays, and the scale rotation will determine which description the pointer will point to. This invention can be used as a Christian teaching aid showing the benefit of choosing to accept the death of Christ as payment in full for our sins, along with showing the consequence of our refusal to accept the death of Christ as payment for our sins.

This invention involves a balance scale with a base, a balance arm support, a balance arm, a pointer, and a movable label plate containing descriptions. The balance arm has a tray on each end, where one tray holds an article representing mankind with sin, and the other tray holds an article representing the redemptive work of Jesus Christ. The articles on each tray are of equal or approximately equal weight. The scale rotates when the weight of the articles are added to or removed from the trays, and the scale rotation will determine which description the pointer will point to. This invention can be used as a Christian teaching aid showing the benefit of choosing to accept the death of Christ as payment in full for our sins, along with showing the consequence of our refusal to accept the death of Christ as payment for our sins.

The invention relates to a measuring device for measuring the mass of a weight, comprising a main frame, a main beam supported on the main frame and comprising a central knife and two side knives parallel with the central knife; a balancing system loaded on one end of the main beam and comprising a set of counterweights; a weighting system loaded on the other end of the main beam; a weight transportation system capable of transporting and loading a standard weight or a test weight into the weighting system and capable of unloading and transporting them away from the weighting system; and a control system. The central knife and the two side knives are made from metal with a high temperature-cryogenic cycling process. The central knife and the two side knives are configured to be adjusted in parallelism with a three-coordinates measuring machine. The control system is adapted to control the balancing system and the weighting system to synchronously load or unload the balancing system and the weighting system.

The invention relates to a measuring device for measuring the mass of a weight, comprising a main frame, a main beam supported on the main frame and comprising a central knife and two side knives parallel with the central knife; a balancing system loaded on one end of the main beam and comprising a set of counterweights; a weighting system loaded on the other end of the main beam; a weight transportation system capable of transporting and loading a standard weight or a test weight into the weighting system and capable of unloading and transporting them away from the weighting system; and a control system. The central knife and the two side knives are made from metal with a high temperature-cryogenic cycling process. The central knife and the two side knives are configured to be adjusted in parallelism with a three-coordinates measuring machine. The control system is adapted to control the balancing system and the weighting system to synchronously load or unload the balancing system and the weighting system.

A system and method for moving an item using an unmanned aerial vehicle (UAV) are described herein. The system includes an unmanned aerial vehicle (UAV), and a mechanism attached to the UAV. The mechanism is configured to grab an item located substantially horizontally vis--vis the UAV or to a lateral side of the UAV. The mechanism is configured to maintain a balance of the UAV such that a center of gravity of the UAV including the mechanism is located substantially on a vertical line containing an original center of gravity of the UAV without the mechanism.