Title:
AMMONIA CONCENTRATION DETECTION DEVICE
Document Type and Number:
Japanese Patent JP2019023601
Kind Code:
A
Abstract:
To provide an ammonia concentration detection device for detecting the concentration of ammonia contained in a gas using an ammonia sensor which is capable of accurately detecting the concentration of ammonia contained in the gas.SOLUTION: The ammonia concentration detection device is configured to detect the concentration of ammonia of a gas to be measured on the basis of a current value which flows across both electrodes when a voltage is applied across an electrode at the gas to be measured and an electrode at a reference gas side of an ammonia gas sensor. The electrode at the gas to be measured contains Au as a metal component. The voltage to be applied across the electrode at the gas to be measured and the electrode at a reference gas side is set so that the electric potential difference on the electrode at the gas side to be measured relative to the reference gas side electrode is set to be within the range of 0-0.3 V.SELECTED DRAWING: Figure 2
Inventors:
NITTA TAKAHIRO
NAKAMURA SATOSHI
KATO YOSHIE
AOKI KEIICHIRO
WAKAO KAZUHIRO
NAKAMURA SATOSHI
KATO YOSHIE
AOKI KEIICHIRO
WAKAO KAZUHIRO
Application Number:
JP2017143304A
Publication Date:
February 14, 2019
Filing Date:
July 25, 2017
Export Citation:
Assignee:
SOKEN INC
TOYOTA MOTOR CORP
TOYOTA MOTOR CORP
International Classes:
G01N27/416; G01N27/26; G01N27/409
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Kazunobu Sera
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Atsushi Kokubo
Kazunobu Sera
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Atsushi Kokubo