Title:
PRESSURE SENSOR
Document Type and Number:
WIPO Patent Application WO/2017/183492
Kind Code:
A1
Abstract:
This pressure sensor is provided with: a tubular body (10) at least part of which is formed from a magnetostrictive material, and which deforms under the pressure of a fluid flowing through said tubular body (10); a magnetic flux generating unit (20) which generates magnetic flux orthogonal to the direction in which the tubular body (10) extends; a detecting unit (30) which detects changes in the magnetic flux in the vicinity of the tubular body 10 resulting from distortion of the tubular body (10); and a casing (50) which accommodates the magnetic flux generating unit (20) and the detecting unit (30). The casing (50) includes: a first holding portion (40) which holds the magnetic flux generating unit (20) with a gap provided between the magnetic flux generating unit (20) and the tubular body (10); and a second holding portion (45) which holds the detecting unit (30) in such a way as to provide a gap between the detecting unit (30) and the tubular body (10), and in such a way that the tubular body (10) is sandwiched between the detecting unit (30) and the magnetic flux generating unit (20).
Inventors:
MIZOGUCHI TAKASHI (JP)
Application Number:
PCT/JP2017/014592
Publication Date:
October 26, 2017
Filing Date:
April 07, 2017
Export Citation:
Assignee:
NABTESCO CORP (JP)
International Classes:
G01L9/16
Domestic Patent References:
| WO2013037588A1 | 2013-03-21 |
Foreign References:
| JPS60260822A | 1985-12-24 | |||
| JPH02248833A | 1990-10-04 | |||
| JP2005061847A | 2005-03-10 | |||
| JPH02134528A | 1990-05-23 |
Attorney, Agent or Firm:
ONDA, Makoto et al. (JP)
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