| 摘要 |
<p>The spring balance has a two-armed weighing beam (3), with the load application point (6) at a given distance (a) from the rotational axis (A) of the beam (3). The sum of this distance (a) and the distance (b) between the load application point (6) and the end of the beam (3) supporting the weighing hook (5) etc. divided by the distance (a) of the load application point (6) from the rotational axis (A) defines a ratio of 2:1. The other arm of the weighing beam (3) carries a counterweight (3') adjustable via a screw for zero adjustment, which balances the weight of the beam (3) and the weighing hook (5).</p> |
