DEVICE FOR MEASURING PIEZOELECTRIC PROPERTIES OF LIQUID OR VISCOUS MATERIAL

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. La présente invention concerne un dispositif de mesure des propriétés piézoélectriques d'un matériau liquide ou visqueux. Le dispositif de mesure des propriétés piézoélectriques est pourvu : d'un dispositif de fixation dans lequel un espace interne, qui peut contenir un échantillon en son sein, est formé et une zone partielle de l'espace interne est ouverte ; d'un dispositif de commande dans lequel un espace fermé pouvant contenir un échantillon est formé en enfermant la zone ouverte de l'espace interne du dispositif de fixation et qui est conçu pour pouvoir se déplacer vers l'espace interne du dispositif de fixation de façon à appliquer une charge à l'échantillon contenu dans l'espace fermé ; d'une première électrode et d'une seconde électrode permettant de mesurer une quantité de charge dans l'espace fermé formé par le dispositif de fixation et le dispositif de commande ;