Title:
DIFFERENTIAL PRESSURE MEASUREMENT DEVICE AND DIFFERENTIAL PRESSURE MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2022/102358
Kind Code:
A1
Abstract:
Provided are a differential pressure measurement device and a differential pressure measurement method whereby a differential pressure between the pressure in an above-floor region and the pressure in an under-floor region can be measured with good precision even when the differential pressure is small. A differential pressure measurement device 1 is characterized by comprising: a differential pressure measurement unit 11 having a first port 11a for acquiring the pressure in an above-floor region 100c and a second port 11b for acquiring the pressure in an under-floor region 100d, one end 12a of a first piping 12 being connected to the first port 11a, and one end 13a of a second piping 13 being connected to the second port 11b; and a cup 14 to which the other end 13b of the second piping 13 is connected, the cup 14 forming a space for measuring the pressure in the under-floor region 100d between the cup 14 and a grating floor panel 102 when the cup 14 is positioned on the grating floor panel 102, the distance in a device height direction between the other end 12b of the first piping 12 and the other end 13b of the second piping 13 being fixed.
Inventors:
OKITA KENJI (JP)
Application Number:
PCT/JP2021/038654
Publication Date:
May 19, 2022
Filing Date:
October 19, 2021
Export Citation:
Assignee:
SUMCO CORP (JP)
International Classes:
G01L13/00
Foreign References:
| JP2009183853A | 2009-08-20 | |||
| JPH11118649A | 1999-04-30 | |||
| JP2012241961A | 2012-12-10 | |||
| JP2007220773A | 2007-08-30 | |||
| JP2009270752A | 2009-11-19 | |||
| US20200166235A1 | 2020-05-28 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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