Title:
TWO-DIMENSIONAL, MULTI-POINT-REFLECTION, LONG-OPTICAL-DISTANCE GAS SENSOR PROBE, AND GAS SENSOR
Document Type and Number:
WIPO Patent Application WO/2021/212931
Kind Code:
A1
Abstract:
Disclosed are a two-dimensional, multi-point-reflection, long-optical-distance gas sensor probe, and a gas sensor. The probe comprises a housing, and a multi-point totally reflective long-optical-distance light path module (4) arranged in the housing, wherein the multi-point totally reflective long-optical-distance light path module (4) comprises two right-angle reflector groups (11) spaced apart by a set distance, with the inclined faces of the right-angle reflector groups (11) being arranged opposite each other and parallel to each other; and a set deviation is present between the center lines of the two right-angle reflector groups (11), and the deviation enables a light beam parallel to the center lines to be reflected between the two right-angle reflector groups (11) a set number of times to form a two-dimensional parallel light beam group. By means of the gas sensor probe, on the basis of the principle of total reflection of right-angle prisms, a parallel light beam is totally reflected multiple times in the two right-angle prisms or in two plane reflector groups which are perpendicular to each other so as to form a two-dimensional parallel light beam group, thereby increasing the measurement light path of gas absorption to facilitate the improvement of the signal-to-noise ratio of detection and measurement accuracy.
Inventors:
LIU TONGYU (CN)
NING YANONG (CN)
LI YANFANG (CN)
LI DEHU (CN)
JIN GUANGXIAN (CN)
ZHANG WEI (CN)
NING YANONG (CN)
LI YANFANG (CN)
LI DEHU (CN)
JIN GUANGXIAN (CN)
ZHANG WEI (CN)
Application Number:
PCT/CN2021/071505
Publication Date:
October 28, 2021
Filing Date:
January 13, 2021
Export Citation:
Assignee:
LASER INST SHANDONG ACADEMY OF SCIENCES (CN)
International Classes:
G01N21/31; G01N21/03; G01N21/25; G02B17/04
Foreign References:
| CN111537453A | 2020-08-14 | |||
| CN108507959A | 2018-09-07 | |||
| CN209372679U | 2019-09-10 | |||
| CN107678156A | 2018-02-09 | |||
| CN105445196A | 2016-03-30 | |||
| CN105445195A | 2016-03-30 | |||
| JPS571953A | 1982-01-07 | |||
| JP2001188037A | 2001-07-10 |
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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