Position detector, position detecting method and analyzer

Details Position detector, position detecting method and analyzer Position detector, position detecting method and analyzer

2010-12-02

2011-11-29

Nguyen, Tu (Department: 2886)

Optics: measuring and testing

With plural diverse test or art

Reexamination Certificate

active

08068219

ABSTRACT:
A position detector is for detecting a position of liquid held in a vessel. The position detector includes a sound wave generator disposed in contact with the vessel and having a plurality of sound generating elements for generating a sound wave by electrical energy; and a measuring unit that measures electrical characteristics of each of the sound generating elements based on the electrical energy reflected from each of the sound generating elements. The position detector also includes a determining unit that determines the presence or absence of the liquid at a position of each of the sound generating elements based on difference in the electrical characteristics measured at the measuring unit.

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