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Patent Searching and Data


Title:
DEVICE FOR MEASURING PIEZOELECTRIC PROPERTIES OF LIQUID OR VISCOUS MATERIAL
Document Type and Number:
WIPO Patent Application WO/2018/021639
Kind Code:
A2
Abstract:
The present invention relates to a device for measuring the piezoelectric properties of a liquid or viscous material. The device for measuring piezoelectric properties is provided with: a fixing fixture in which an internal space, which can contain a sample therein, is formed and a partial area of the internal space is open; an operating fixture in which an enclosed space capable of containing a sample is formed by enclosing the open area of the internal space of the fixing fixture and which is configured to be able to move to the internal space of the fixing fixture so as to apply a load to the sample contained in the enclosed space; a first electrode and a second electrode for measuring a charge amount in the enclosed space formed by the fixing fixture and the operating fixture; a driving module for moving the operating fixture according to a driving signal; a movement information measuring module mounted to the operating fixture and for measuring information on a movement of the operating fixture by the driving module; a charge amount measuring module for measuring the charge amount through the first and second electrodes and providing the charge amount; and a control module for generating the driving signal for the driving module and providing the driving signal to the driving module, receiving the movement information from the movement information measuring module, receiving charge amount information on the enclosed space from the charge amount measuring module, and measuring the piezoelectric properties of the sample by using the movement information and charge amount information.

Inventors:
HONG SUNG YUN (KR)
JANG JI HUI (KR)
KIM SU JI (KR)
LEE JUN BAE (KR)
KIM YOUN JOON (KR)
YOO KWEON JONG (KR)
HWANG HUI YUN (KR)
AHN JUN HYEOK (KR)
HWANG SANG GYUN (KR)
Application Number:
PCT/KR2017/000820
Publication Date:
February 01, 2018
Filing Date:
January 24, 2017
Export Citation:
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Assignee:
COSMAX INC (KR)
International Classes:
G01N3/30; G01R29/22
Attorney, Agent or Firm:
LEE, Moon-Sup (KR)
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