VISCOSITY SENSOR USING PIEZO VIBRATOR

PURPOSE: A viscosity sensor using a piezo vibrator is provided to measure the viscosity which reduces errors according to a viscosity measuring method. CONSTITUTION: A pair of piezo vibrators(11,12) is a vibration transmitter and a vibration receiver. A pair of metal elastic bodies(13,14) respective...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, SUNG HOON, JEONG, YEON HAK
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	PURPOSE: A viscosity sensor using a piezo vibrator is provided to measure the viscosity which reduces errors according to a viscosity measuring method. CONSTITUTION: A pair of piezo vibrators(11,12) is a vibration transmitter and a vibration receiver. A pair of metal elastic bodies(13,14) respectively prepares in the outside of the piezo vibrator in order to deliver the vibration from piezo vibrator. The one of the metal elastic bodies is screwed in a core rod. Insulating bodies(15,16) are interposed between each piezo vibrators and metal elastic bodies. Input/output electrodes(17,18) and a ground electrode(19) are arranged in a pair of piezo vibrators. The resonant frequency band is controlled according to the screw screwing degree.