Title:
【発明の名称】調和運動に基づいて物品を計量する装置
Document Type and Number:
Japanese Patent JP2650749
Kind Code:
B2
Abstract:
Apparatus and method of determining the mass of an article by the shift of the period of oscillation of a flexibly mounted tray. An article whose mass is to be determined is placed upon the tray which is caused to oscillate and the period of harmonic motion is calibrated. This period is compared against the period of harmonic motion when there is no article upon the tray, and the difference, or shift, in frequency, allows a determination of the mass of the article. The tray is supported by a plurality of flexible members having parallelogram configuration that eliminates bending stresses.
More Like This:
| JPS5542016 | ELECTRONIC WEIGHING DEVICE |
| WO/2002/061396 | OSCILLATOR AND MASS DETECTOR |
Inventors:
ROBAATO EI KOODORII
DEIUITSUDO DABURYUU HABAADO
DEIUITSUDO DABURYUU HABAADO
Application Number:
JP112389A
Publication Date:
September 03, 1997
Filing Date:
January 06, 1989
Export Citation:
Assignee:
PITSUTONII BOZU INC
International Classes:
G01G3/13; G01G11/00; G01G19/00; G01G3/16; G01G19/40; (IPC1-7): G01G3/16; G01G19/40
Domestic Patent References:
| JP6138329A | ||||
| JP6162725A |
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)