By Husain Shekhani
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16 Sep, 2024
I hosted a webinar on September 13, 2024 on " How to prepare specifications when ordering piezo ceramic elements " You can watch the recording on my YouTube Channel here: https://youtu.be/dW6ahW3mH0g Here is a link to the pdf of the presentation notes: webinar_28_kp.pdf KP DISK PIEZO MATERIAL PROPERTY CALCULATOR - to determine material properties from impedance measurements made on a PZT disk Summary I explain how to use impedance measurements from piezoelectric disks to calculate material properties, covering resonance modes, experimental setups, and analysis techniques. Highlights 📊 Impedance measurements reveal material properties. 🛠️ Care in sample holder design is crucial for accuracy. 📏 Distinguishing between planar and thickness resonance is essential. 🔍 Experimental methods for impedance analysis are discussed. 🌐 Pi Ceramic is highlighted as a reputable supplier. 📈 Effective coupling factors can help analyze material properties. ⚙️ Finite element analysis (FEA) aids in property verification. Key Insights 📌 Impedance Analysis : Impedance measurements are key to determining material properties, but require careful setup and analysis to ensure accuracy. Understanding the nuances of the impedance response is critical for valid results. 📌 Resonance Modes : Differentiating between planar and thickness resonance modes is vital, as they influence the analysis of piezoelectric properties differently. Each mode has unique characteristics that affect how data is interpreted. 📌 Sample Holder Importance : The design of the sample holder significantly impacts measurement repeatability and accuracy, emphasizing the need for precision engineering in experimental setups. 📌 Material vs. Disk Properties : It’s essential to distinguish between properties of the piezoelectric disk and the underlying material properties, as they can lead to different conclusions if conflated. 📌 Finite Element Analysis (FEA) : Utilizing FEA can provide more accurate simulations and help verify experimental results, particularly when dealing with complex geometries or small samples. 📌 Supplier Quality : Choosing high-quality suppliers like Pi Ceramic ensures reliable materials that can withstand rigorous testing, contributing to overall system performance. 📌 Capacitance Measurement : Capacitance comparisons can be utilized across different geometries, providing a versatile method for evaluating piezoelectric materials regardless of shape or size. Sponsor information This webinar was sponsored by PI Ceramic Technology. Learn more about their piezo ceramic products at this link: https://www.piceramic.com/?utm_medium=web&utm_source=UltrasonicAdvisors&utm_campaign=ONLB_700x200_UltrasonicAdvisors_2024-0101-D181_PIC-HP *** Announcement *** My next webinar will be on Friday, October 18, 2024 at 11AM EST. I will cover Ultrasonic Advisors' Transducer Simulation Software Here is the link to sign up for the upcoming webinar: https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar