LIQUID DETECTING APPARATUS AND LIQUID CONTAINER

A liquid detecting apparatus includes an ultrasonic sensor that transmits and receives an ultrasonic wave, and includes a piezoelectric layer which is formed of a thin film and an ultrasonic element which is provided with a first electrode and a second electrode to interpose the piezoelectric layer...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YONEMURA, Takayuki, ISSHIKI, Tetsuya
Format:	Patent
Sprache:	eng
Schlagworte:	CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME PERFORMING OPERATIONS PHYSICS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TESTING TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A liquid detecting apparatus includes an ultrasonic sensor that transmits and receives an ultrasonic wave, and includes a piezoelectric layer which is formed of a thin film and an ultrasonic element which is provided with a first electrode and a second electrode to interpose the piezoelectric layer between the first electrode and the second electrode, on a diaphragm which is disposed on a substrate having a cavity, and a flow path that forms the same liquid level as a liquid level of a liquid which is stored in a container, in which an acoustic matching layer and a detection surface of a surface of a lens, which are disposed on a side of the ultrasonic sensor that transmits and receives the ultrasonic wave, are disposed to be in contact with the liquid within the flow path.