the dummy cell 5 from the digital data obtained from the vibration detecting system and the second stage multiplexer 25 which operates in synchronism with the first stage multiplexer 23 to send output signals to these digital filters 14 and 15 in addition the correcting circuit 26 includes memory devices 17 and 18 a zero point adjusting circuit 19 a multiplier 20 a subtractor 21 and a multiplexer controlling device 29 which function as explained above in connection with the second embodiment of the present invention when an object to be weighed is placed on the load carrying table 3 after necessary parameters such as the weight of the load carrying table 3 and the sensitivity coefficient k 1 are inputted through a keyboard 22 as explained above in connection with the first embodiment of the present invention a strain proportional to the weight defined above as w 1 is generated in the scale cell 1 and an analog electrical signal indicative of this value is outputted therefrom the analog electrical signals outputted from the scale and dummy cells 1 and 5 are alternately received and amplified to specified levels by the preamplifier 31 and then converted to digital signals by the analog to digital converter 24 since the second stage multiplexer 25 operates.