Title:
At least electric capacity type liquid is a detecting device.
Document Type and Number:
Japanese Patent JP6022413
Kind Code:
B2
Abstract:
Provided is a capacitive liquid level detection device capable of determining liquid level and liquid quality. This detection device comprises a plurality of electrode pairs disposed at different positions in a height direction in a tank for storing liquid; a measuring instrument for acquiring values equivalent to capacitance between respective electrode pairs of the plurality of electrode pairs; a storage part for storing a plurality of threshold values determined based on values equivalent to capacitance between one of the electrode pairs in the presence of the air or a plurality of kinds of liquids; and a determination part comparing the values equivalent to capacitance between the respective electrode pairs with each of the threshold values, and the determination part determines for determining liquid level corresponding to liquid quality based on the comparison result.
Inventors:
Yuki Saito
Tetsuyoshi Shibata
Keisuke Kawade
Atsushi Muramatsu
Tetsuyoshi Shibata
Keisuke Kawade
Atsushi Muramatsu
Application Number:
JP2013128268A
Publication Date:
November 09, 2016
Filing Date:
June 19, 2013
Export Citation:
Assignee:
Sumitomo Riko Co., Ltd.
International Classes:
G01F23/26
Domestic Patent References:
| JP11311562A | ||||
| JP2012220220A |
Attorney, Agent or Firm:
Patent business corporation Kyoritsu