| 摘要 |
A force sensor integrated into a main bearing of an elevator machine measures the force in the direction of the wire ropes or coated steel belts that support and move an elevator car. The resulting signal provides information on the car weight and on mechanical problems in the hoistway, motor, main bearing, or drive sheave. The signal amplitude is proportional to the weight of the elevator car. The amplitude is independent of the position of the load in the elevator car. In cooperation with the position decoder of the machine, it is possible to differentiate between hoistway and motor problems, or to determine the precise location of the problem if the problem is in the hoistway. |
