Piezoelectric Powder Level Sensors

Tech Notes

TDK Product Features

Piezoelectric powder level sensors make it possible to accurately detect fine powder residue with piezoelectric ceramic and vibrating structures that have been optimized specifically for fine powder detections.
There is no deterioration of the components, which leads to highly reliable detections and increased service life.
Piezoelectric ceramics are used in the detection components to make detections possible regardless of magnetic or non-magnetic properties, and ASICs specialized for piezoelectric ceramics and optimized for fine powder detection are used together with our own structuring, to make it possible to drive these piezoelectric ceramics with high-accuracy.
These sensors are used for detecting residual printer toner and various types of residual powders.


Nov. 29, 2018
"Products Conforming to European Union RoHS Directive / Product Information Concerning Revised China RoHS" has been updated.
Mar. 19, 2018
FAQ | Added "Sensors and Sensor Systems"
Apr. 12, 2017
“Classifications of Medical Devices” and TDK Products’ Coverage of Those Classes has been released.
Mar. 12, 2017
Release of "myTDK", our membership-based service
Nov. 2, 2016
Product over view: Sensors (Humidity, Surface Potential, Magnetic Toner Density / Quantity, Powder Level / Piezoelectric Toner) are released.

Product spotlight