In an “odor sensor,” a piezoelectric film is coated with a sensitive membrane. When odor molecules adhere to this membrane, the sensor detects minuscule changes in the resonance frequency of the piezoelectric film.
Because KRYSTAL’s piezoelectric film demonstrates low loss and high displacement volumes, it becomes possible to better clarify the peaks in resonance frequencies. This enables higher resolution in frequency changes, thereby contributing to better performance in detection sensitivity.
Medical breath analyzers, multifunctional environmental measurement devices
Directional speaker | PZT (for Actuators)
Piezoelectric speakers, which use piezoelectric elements, incorporate piezoelectric film in the vibration plate. This vibration plate (the piezoelectric film) converts electrical signals into mechanical vibration, and causes the film to vibrate, which then produces sound. KRYSTAL’s single crystal PZT film has a high withstand voltage and a high displacement, to generate unprecedented levels of sound pressure. A low dielectric constant also contributes to reduced power consumption.
Oscillation power generation elements | PZT (for Sensors)
“Oscillation power generation” is a form of energy harvesting technology in which a piezoelectric element is used to generate power from oscillation energy. The Oscillation power generation element can also be used as a power source for the sensor element.
Local vacuum | PZT (for Actuators)
A technology called “local vacuum” has gained attention as a near-future technology that could become a reality through the use of KRYSTAL’s PZT film. For example, a micro-pump driven by the piezoelectric properties of PZT film can be used to generate a low-level vacuum. This micro-pump could then be attached to the end of a robot arm, allowing the robot arm to hold onto an object. Using this PZT film simplifies the design dramatically, because only a power cable is required to drive the unit.