PH SENSOR PACKAGE AND PH SENSING METHOD USING THE SAME

A pH sensor package includes: a light emitting module which outputs a first light signal having a first wavelength and a second light signal having a second wavelength; a light receiving module which receives the first light signal and the second light signal transmitted through liquid medium; and a...

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Bibliographic Details
Main Author CHO, JUNG YOON
Format Patent
LanguageEnglish
Korean
Published 13.03.2015
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:A pH sensor package includes: a light emitting module which outputs a first light signal having a first wavelength and a second light signal having a second wavelength; a light receiving module which receives the first light signal and the second light signal transmitted through liquid medium; and a pH calculating module which calculates the first absorbance of the first light signal and the second absorbance of the second light signal received by the light receiving module and calculates the pH of the liquid medium based on a difference between the first absorbance and the second absorbance.
Bibliography:Application Number: KR20130162195