演示“电子秤的简明原理”的教具制作

Teaching aid to demonstrate the principle of electronic balance

采用了学生熟悉的器材和常见的材料制作了与电子秤组成相同且原理一致的教具,该装置的力电转换部分采用了分压电路,可较好地演示电子秤的工作原理.

Using familiar device and material, a teaching aid to demonstrate the principle of electronic balance is made, its principle and composing are consistent with commercial electronic balance. To well demonstrate the principle of electronic balance, bleeder circuit is applied in the force-electricity transducing section.