Title:
FLUID STATE DETECTION SENSOR
Document Type and Number:
WIPO Patent Application WO/2022/145272
Kind Code:
A1
Abstract:
A fluid state detection sensor (1) is provided with: a conductivity calculation unit (30) having a conductivity calculation part (32) that calculates the conductivity of fluid from a voltage value acquired in a first voltage acquisition part (31); and a dielectric constant calculation unit (40) having a dielectric constant calculation part (42) that calculates the dielectric constant of fluid from a voltage value acquired in a second voltage acquisition part (41). After the elapse of a predetermined time after a switching part (20) switches connection destinations for a pair of electrodes (11,12) to the conductivity calculation unit (30), the first voltage acquisition part (31) acquires an inter-electrode voltage value. After the elapse of a predetermined time after the switching part (20) switches connection destinations for the pair of electrodes (11, 12) to the dielectric constant calculation unit (40), the second voltage acquisition part (41) acquires the inter-electrode voltage value.
Inventors:
NAKAMURA RYOHEI (JP)
KAMEDA YUKINORI (JP)
NAGAI YUKI (JP)
YOSHIDA TAKAHIRO (JP)
KAMEDA YUKINORI (JP)
NAGAI YUKI (JP)
YOSHIDA TAKAHIRO (JP)
Application Number:
PCT/JP2021/047016
Publication Date:
July 07, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
G01N27/00; G01N27/06; G01N27/22
Foreign References:
| JP2014153272A | 2014-08-25 | |||
| JP2015025760A | 2015-02-05 | |||
| JPH02103264U | 1990-08-16 | |||
| US20120182030A1 | 2012-07-19 | |||
| JP2017198528A | 2017-11-02 | |||
| JP2020218839A |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
Download PDF:
Previous Patent: BACKUP POWER SUPPLY CONTROL SYSTEM, BACKUP POWER SUPPLY SYSTEM, AND MOBILE BODY
Next Patent: LIQUID STATE DETECTING SENSOR
Next Patent: LIQUID STATE DETECTING SENSOR