Title:
WATER QUALITY SENSOR USING POSITIVE FEEDBACK
Document Type and Number:
WIPO Patent Application WO/2015/065023
Kind Code:
A1
Abstract:
A sensing system, according to the present embodiment, comprises: an optical actuator for applying an optical stimulation to a material to be detected; a photo-detector for outputting an electrical signal having a snapback form in correspondence with an optical reaction formed according to the density of the material to be detected to which the optical stimulation has been applied; an amplifier for amplifying the electrical signal outputted from the photo-detector and positively feeding back and applying the amplified electrical signal to the optical actuator; and a detection unit for detecting the material to be detected by receiving the electrical signal.
Inventors:
PARK YOUNG JUNE (KR)
CHOI SEONG WOOK (KR)
LEE SANG WOO (KR)
CHOI SEONG WOOK (KR)
LEE SANG WOO (KR)
Application Number:
PCT/KR2014/010208
Publication Date:
May 07, 2015
Filing Date:
October 28, 2014
Export Citation:
Assignee:
SNU R&DB FOUNDATION (KR)
SEOUL VIOSYS CO LTD (KR)
SEOUL VIOSYS CO LTD (KR)
International Classes:
G01N15/14; G01N21/17; G01N21/62; G01N33/18
Domestic Patent References:
| WO2013032138A2 | 2013-03-07 | |||
| WO2010090391A2 | 2010-08-12 |
Foreign References:
| US7090992B2 | 2006-08-15 | |||
| KR20060124111A | 2006-12-05 | |||
| KR20090081705A | 2009-07-29 |
Attorney, Agent or Firm:
NAM, JUNG-KIL (KR)
남정길 (KR)
남정길 (KR)
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