Title:
流体状態検出センサ
Document Type and Number:
Japanese Patent JP7223216
Kind Code:
B2
Abstract:
A fluid state detection sensor (1) includes: an electrical conductivity calculation unit (30) having an electrical conductivity calculation part (32) configured to calculate an electrical conductivity of a fluid from a voltage value acquired in a first voltage acquisition part (31); and a relative dielectric constant calculation unit (40) having a relative dielectric constant calculation part (42) configured to calculate a relative dielectric constant of the fluid from a voltage value acquired in a second voltage acquisition part (41), wherein the first voltage acquisition part (31) acquires an inter-electrode voltage value after a predetermined time period after a switching part (20) above a connection target of a pair of electrodes (11, 12) to the electrical conductivity calculation unit (30), and the second voltage acquisition part (41) acquires the inter-electrode voltage value after the predetermined time period after the switching part (20) switched the connection target of the pair of electrodes (11, 12) to the relative dielectric constant calculation unit (40).
Inventors:
Kouhei Nakamura
Yukinori Kameda
Yusuke Nagai
Naohiro Yoshida
Yukinori Kameda
Yusuke Nagai
Naohiro Yoshida
Application Number:
JP2022567432A
Publication Date:
February 15, 2023
Filing Date:
December 20, 2021
Export Citation:
Assignee:
KYB Corporation
International Classes:
G01N27/00; G01N27/06; G01N27/22
Domestic Patent References:
| JP2014153272A | ||||
| JP2015025760A | ||||
| JP2103264U |
Foreign References:
| US20120182030 |
Attorney, Agent or Firm:
Patent Attorney Corporation Goto Patent Office
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