Title:
膜式ガスメータ
Document Type and Number:
Japanese Patent JP7023155
Kind Code:
B2
Abstract:
To provide a membrane gas meter that can accurately perform forward and reverse determination while maintaining the ability to display a highly accurate integrated value during forward rotation of a rotating body.SOLUTION: A second rotating body M2 that rotates in conjunction with the reciprocating motion of the film portion and alternately includes second magnetic force generation regions and second non-magnetic force generation regions along the circumferential direction around the rotation axis P is provided. A second magnetic detection unit provided separately from the first rotating body M1 and disposed at a detection position that alternately detects the second magnetic force generation region and the second non-magnetic force generation region as the second rotating body M2 rotates. the second magnetic detection unit S2 is provided separately from the first magnetic detection unit S1, and in the axial direction of the rotation axis P, the second rotation body M2 is provided separately from the first rotation body M1, and in the second rotation body M2, the number of magnetic poles as the two magnetic force generation regions is configured to be smaller than the number of magnetic poles as the first magnetic force generation regions in the first rotating body M1.SELECTED DRAWING: Figure 2
Inventors:
Keishi Kawaguchi
Ochi Takeshi
Ochi Takeshi
Application Number:
JP2018065783A
Publication Date:
February 21, 2022
Filing Date:
March 29, 2018
Export Citation:
Assignee:
OSAKA GAS CO.,LTD.
International Classes:
G01F3/22
Domestic Patent References:
| JP781896B2 | ||||
| JP4010910B2 |
Attorney, Agent or Firm:
Patent business corporation r&c