Title:
ガスメータ評価システム及びこれに用いられるガスメータ
Document Type and Number:
Japanese Patent JP6528120
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a gas meter evaluation system capable of quantitatively evaluating changes over the years across an entire measurement flow area by comprehending characteristics on gas meters as a function and by comprehending the changes over the years in the function.SOLUTION: The gas meter evaluation system includes: a flow rate sensor 3 for measuring flow rate; a pressure sensor 6 for measuring changes in pressure difference at plural point in a measurement flow path 1; and an analysis processing section 12 that obtains a relational expression between the flow rate and the pressure to comprehend pressure difference-flow rate characteristics as a function. The measurement is carried out in an initial state and in a regular inspection state. By using the differences in the functions, the extent of changes over the years can be quantitatively evaluated across entire measurement flow area.SELECTED DRAWING: Figure 1
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Inventors:
Hidetomo Nagahara
Yuji Nakabayashi
Masato Sato
Yuji Nakabayashi
Masato Sato
Application Number:
JP2015090146A
Publication Date:
June 12, 2019
Filing Date:
April 27, 2015
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
G01F3/22; G01F1/00
Domestic Patent References:
| JP2001159548A | ||||
| JP2001041797A |
Attorney, Agent or Firm:
Kenji Kamada
Koichi Nomura
Koichi Nomura