| 摘要 |
A fluidized bead bed (10) having a scale (14) integrated into the frame (12, 13) of the bed for providing a continuous readout of the weight of a patient supported on the upper surface (26) of the bed. The bed includes a fluidized bead bed support mounted atop a frame such that a torque, corresponding to the supported load is transmitted to the beam arms (36) cantilevered from each end of the frame and extending to the longitudinal median of the bed along one side thereof. Springs (44) oppose the torque and LVDT's (37) are provided at the distal ends of the arms (36) to produce an electrical signal with pulses of an amplitude related to the weight of the patient on the bed. A control panel (30) incorporates a signal processor for providing an accurate but readable output base on the LVDT signals. |
