| 摘要 |
A weighing system, using the principle of electromagnetic force compensation, which includes a permanent magnet system ( 14 ) having an air gap, a shielding cover ( 12 ), a coil ( 13 ) located inside the air gap, a transmission lever ( 7 ) to whose longer lever arm the coil is attached, and upon whose shorter lever arm the weight transferred by the load receiver acts, a position sensor ( 20, 21, 22 ) which detects the position of the transmission lever and which is situated in the vicinity of the coil, and a control amplifier ( 16 ) for controlling the current passing through the coil. Further, at least one vertical support ( 25 ) is connected to the transmission lever in the vicinity of the coil and the position sensor and projects through an opening ( 27 ) in the shielding cover. A counterweight ( 26 ) is placed on this/these support(s) closely above the shielding cover.
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