Title:
透過光強度測定ユニット
Document Type and Number:
Japanese Patent JP6503230
Kind Code:
B2
Abstract:
[Task] To obtain an enough quantity of light being supplied from a light source, transmitted through a duct and reached to a light receiving element. [Solution for task] There is provided a transmitted light intensity measurement unit used in a fluid concentration measuring device for measuring a concentration of a fluid flowing through a duct having a light-transmissive and deformable duct wall, comprises: a light source for supplying light into the duct from a light supply part on a surface of the duct; a light receiving element for receiving the light, which has been passed from the light supply part through the duct wall and the fluid inside the duct, at a light receiving part located on an opposite side in a diametrical direction of the duct relative to the light supply part, and outputs a signal indicating an intensity of the light; and a light-transmissive member disposed on at least one light path among a light pass between the light source and the light supply part and a light pass between the light receiving element and the light receiving part, abutting and closely contacting the duct wall by an elastic deformation of the duct wall.
More Like This:
Inventors:
Yoshihiko Sano
Harada Shoei
Harada Shoei
Application Number:
JP2015109678A
Publication Date:
April 17, 2019
Filing Date:
May 29, 2015
Export Citation:
Assignee:
NIPRO CORPORATION
Harada Electronics Co., Ltd.
Harada Electronics Co., Ltd.
International Classes:
G01N21/27; G01N21/05; G01N21/59
Domestic Patent References:
| JP59107241A | ||||
| JP61003034A | ||||
| JP2006234663A | ||||
| JP9264845A |
Attorney, Agent or Firm:
Ginza Marronnier Patent Office