Level Sensors
Product Lineup
Liquid Level Sensors
Piezoelectric Powder Level Sensors
Tech Notes
Piezoelectric powder level sensors provide highly accurate and stable voltage output to indicate the presence or absence of particulate matter referred to as powder. This article describes the driving principle (the piezoelectric unimorph driving principle) and structure of piezoelectric powder level sensors, application in piezoelectric vibration type sensors, and the driving method and driving circuits of piezoelectric unimorphs.
TDK Product Features
TDK's portfolio of level sensors includes piezoelectric powder level sensors, which employ piezoelectric sensor elements.
These sensors feature a built-in oscillating circuit, which causes them to vibrate.
The sensor elements are able to detect the presence of powder when they come into contact with powder and their vibrational conditions are altered.
The portfolio of level sensors is rounded out with PTC level sensors, which are designed to indicate the presence or absence of various liquid media.
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