Title:
METHOD FOR MANUFACTURING GAS CONCENTRATION CALCULATION DEVICE, AND GAS CONCENTRATION CALCULATION DEVICE
Document Type and Number:
Japanese Patent JP2021092416
Kind Code:
A
Abstract:
To provide a method that is hard to cause displacement in connection of a tubular part with a first mirror and a second mirror, as a method for manufacturing a gas concentration calculation device having an enclosure comprising the tubular part made of synthetic resin and including a first opening and a second opening at axial both ends, respectively, and the first mirror and the second mirror oppositely arranged at the first opening and the second opening, respectively, and forming an infrared optical path in the inside of the tubular part.SOLUTION: A method comprises the steps of: preparing a precursor 100 having synthetic resin protrusions 111b, 112b protruding outside from each installation position of a first mirror and a second mirror of a tubular part, respectively; and connecting the first mirror with the second mirror to each installation position by bending the protrusion while melting it with heat to make it adhere to the first mirror and the second mirror, after arranging the first mirror and the second mirror in each installation position of the precursor 100, respectively.SELECTED DRAWING: Figure 2
Inventors:
JAN WIGG
JAN-AKE HENNING
CARL-JOHAN HED
JAN-AKE HENNING
CARL-JOHAN HED
Application Number:
JP2019222115A
Publication Date:
June 17, 2021
Filing Date:
December 09, 2019
Export Citation:
Assignee:
ASAHI KASEI DENSHI KK
International Classes:
G01N21/61; G01J1/04
Domestic Patent References:
| JPH0949793A | 1997-02-18 | |||
| JPS61116645A | 1986-06-04 | |||
| JP2013120154A | 2013-06-17 | |||
| JP2013083527A | 2013-05-09 | |||
| JP2012031634A | 2012-02-16 |
Foreign References:
| US20050270536A1 | 2005-12-08 |
Attorney, Agent or Firm:
Hide Tanaka Tetsu
Tetsuya Mori
Tetsuya Mori