National Institute of Metrology

Changqing Cai

Jian Wang

Xiang Wang

Xiaoping Ren

Manhong Hu

Tao Li

Ping Chen

Xiaolei Wang

Honglei Ji

An automatic large-mass-weight handling system comprises: a weight picking device () configured for picking up and holding a large-mass-weight (); a driving device () for providing a driving power; a weight transferring device () comprising a first horizontal rail () and a vertical rail () assembled to the first horizontal rail () in a way of being movable along the first horizontal rail (), the first horizontal rail () extending in a first horizontal direction, the vertical rail () extending in a vertical direction perpendicular to the first horizontal direction, and the weight picking device () being assembled to the vertical rail (); and a control unit for controlling the movement of the weight picking device (); wherein the control unit controls the driving device () in a way that the weight picking device () is able to be moved automatically in the first horizontal direction and is able to be moved automatically in the vertical direction.

Automatic large-mass-weight handling 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.

High accuracy measuring device for measuring large mass

The invention discloses a measuring device for measuring the mass of a weight, comprising: a main frame; a main beam supported on main frame; a balancing system loaded on one end of the main beam; 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 comprising an optical sensor mounted in the main frame, a laser displacement sensor mounted on the main beam, a monitor, and a control unit connected electrically to the optical sensor, the laser displacement sensor and the monitor. The control system is adapted to compare a main beam first displacement data obtained by the optical sensor and a main beam second displacement data obtained by the laser displacement sensor to accurately measure the actual displacement of the main beam.

Measuring device for measuring large mass with optical refraction and displacement measuring

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Beijing, China

Changqing Cai