Head office
SECO Sensor Consult GmbH
Am Bleichanger 1
96450 Coburg
Phone: +49 (0)9561 869141
Fax: +49 (0)9561 869149
info@seco-sensor.de
Piezokeramische Scheibe – Herzstück des Wandlers
High-quality piezoceramic transducers at the heart of our ultrasonic transducers
We source our piezoceramic transducers from selected suppliers, preferably local ones with above-average quality standards. Our supplier PI Ceramic manufactures a material specifically for us. This material is characterized by high efficiency and minimal geometric and electrical tolerances.
Our product managers (from left) Stefan Schneider, Ralph Schenderlein, Lisa Loidolt and our Managing Director Eugen Gergert visiting our supplier of top-quality piezo technology PI Ceramic in Lederhose, Thuringia. We would like to thank them for the decades of trustful cooperation and millions of piezo elements of the highest quality – Made in Germany.
What role does the piezoceramic disk play in the ultrasonic transducer?
The piezoceramic disc is the central component of an ultrasonic transducer. It converts electrical signals into mechanical vibrations—and vice versa. When transmitting, it uses the piezoelectric effect to generate ultrasonic waves that propagate through the air or a medium. When receiving, it responds to incoming sound waves with minimal deformations, which in turn are converted into electrical signals. Its material properties, geometry, and processing significantly determine the sensitivity, frequency, and signal quality of the transducer.
For maximum precision and reliability, we rely on piezoceramic discs with excellent quality characteristics—manufactured by long-standing, proven, and reliable suppliers. These high-quality ceramics are characterized by stable electrical properties, low aging, and high mechanical resilience. This ensures that our ultrasonic transducers remain consistently powerful even under demanding conditions.
How the piezoceramic disk works:
1. piezoelectric effect
The piezoceramic disk is based on the piezoelectric effect. This means that certain materials, such as piezoceramics, generate electrical charges when mechanically deformed. Conversely, these materials generate mechanical vibrations when exposed to an electric field. We use precisely this effect in our ultrasonic transducer.
2. generation of ultrasonic waves
If an electrical voltage is applied to the piezoceramic disk, it deforms due to the piezoelectric effect. This rapid deformation leads to mechanical vibrations that are emitted as ultrasonic waves into the surrounding medium (e.g. air, water or human tissue).
3. reception of ultrasonic waves
Conversely, the piezoceramic disk can also receive ultrasonic waves. When an ultrasonic wave hits the disk, it deforms mechanically, which generates an electrical voltage in the disk. This voltage is then evaluated as an electrical signal.
Meaning in the ultrasonic transducer:
Signal conversion
The piezoceramic disk is the heart of the ultrasonic transducer, as it enables the direct conversion of electrical signals into ultrasonic waves and vice versa.
Efficiency and frequency control
The thickness and material of the piezoceramic disc determine the frequency of the ultrasonic waves generated, which is crucial for the transducer’s areas of application.
Sensitivity and precision
The quality of the piezoceramic disc influences the sensitivity of the transducer. High-quality piezoceramics can convert very small mechanical changes into electrical signals, which is important for accurate measurements.
Overall, the piezoceramic disk is the core component of an ultrasonic transducer, which makes it possible to generate and receive sound waves with high precision. Without it, the functionality of an ultrasonic transducer would not be possible.
Our strength is our flexibility
One of our strengths is our flexibility. By producing adjustment material, strands, and casting compound in-house, we are able to configure our transducers flexibly and comprehensively according to your customer requirements. We are happy to adapt each of our standard transducers to your individual requirements and environmental conditions with different housings, a wide variety of contacts, and optional additional equipment. Talk to us! Together, we will create the perfect transducer for your application.
