| 摘要 |
Scales comprise at least one transducer, a weighing pan arranged such that weight applied to the weighing pan is referred to the transducer, and electronics which receive an output from the transducer and drive a display to provide a user with a visible indication of the weight applied to the weighing pan, wherein the transducer and electronics are contained In a sealed enclosure defined at least in part by a flexible water-tight membrane which is able to move and thereby (a) to accommodate changes of volume of the sealed enclosure without creating a pressure differential between the Interior and the exterior of the sealed enclosure and (b) to accommodate movement of the weighing pan. Scales comprise a housing, a weighing pan, and a transducer contained in the housing and arranged to support weight applied to the weighing pan so that the transducer provides an output indicative of the applied weight, a display supported by the housing and viewable from its exterior, and electronics connected to the transducer and to the display, the electronics receiving the transducer output and driving the display in response to provide a user with a visual Indication of the applied weight, wherein the housing is permeable to water and the electronics and the display are protected in a waterproof enclosure, enabling the scales to be washed with water without damage. The water-tight membrane may comprise a double film comprising a saturated salt solution between two films. |
