| 摘要 |
PURPOSE:To realize a simple structure, easy assembling and long lifetime for a balance, by constituting the balance with a stage plate, plural elastic members that support the stage plate with equal elastic constant and a stand plate position detector provided at the center among the elastic members. CONSTITUTION:When an object W is put on the center of a stage plate 1, springs 2 and 3 having equal elastic constant contact by an equal degree of (a). When the plate 1 has a displacement by (a), an iron core 6 fixed to the plate 1 goes into the primary and secondary coils 7 of a differential transformer. Thus the weight W is detected. The displacement at the center of the plate 1 has no displacement although the obhect W is put at a drifted place on the place 1. Thus a correct W is aloways obtained. In such way, a simple structure, easy assembling and long lifetime are ensured for a balance. |
