Title:
WEIGHT MEASURING APPARATUS
Document Type and Number:
Japanese Patent JP3921846
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To realize a weight measuring apparatus by which the weight of an object to be measured can be measured with good accuracy by using a weight sensor having a comparatively small dynamic range by making the weight of objects other than the object to be measured born by an elastic body so as to be offset.
SOLUTION: The weight measuring apparatus is constituted of an elastic body 3 and an outer-circumferential support member 4 which support an object to be measured. In addition, it is constituted of a weight sensor 5 which measures a value in which the weight of the object to be measured, supported by the elastic body is subtracted from the weight of the object to be measured. In addition, an A/D conversion means 6 which A/D-converts the signal of the weight sensor 5. In addition, it is constituted of a computing means 7 which processes the signal of the A/D conversion means 6. Consequently, the weight of objects other than the object to be measured is born by the elastic body 3 so as to be offset. Thereby, the weight of the object to be measured can be measured with good accuracy by using the weight sensor 5 whose dynamic range is comparatively small.
Inventors:
Katsunori Zaizen
Application Number:
JP32056098A
Publication Date:
May 30, 2007
Filing Date:
November 11, 1998
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
G01G23/14; A47J27/00; G01B7/00; G01G3/18; (IPC1-7): G01G23/14; G01B7/00
Domestic Patent References:
| JP57140397A | ||||
| JP8005442A | ||||
| JP7077453A |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano