Capacitance analysis of ultrasonic transducers

Husain Shekhani • November 23, 2022

I hosted a webinar on November 18, 2022 on

"Parameters to measure in ultrasonic transducer impedance analysis"

You can watch the recording on my YouTube Channel here: 

https://youtu.be/4qUYmYwpCBQ

Here is a link to the presentation notes: Link


Topics

In this webinar, I gave a general description of capacitance. Then, I gave an explaination of how capacitance relates to the electromechancial performance of an ultrasonic/piezoelectric transducer. I provided many tip for measurement, including how to practically use capacitance measurements for important analysis.

Here is the outline of the webinar.

  • 0:16 - Outline
  • 1:20 - Blurb about my consulting work
  • 2:39 - Detailed outline
  • 4:00 - What is capacitance?
  • 6:51 - Capacitance with AC voltage
  • 10:20 - How do you measure capacitance?
  • 12:56 - What frequency to use for measuring capacitance?
  • 16:56 - Electromechanical analysis of capacitance for piezoelectric transducers
  • 29:40 - Misc. expert tips to measure capacitance
  • 32:46 - Several ways to use capacitance measurements


***Announcement***

My next webinar will be December 9, 11AM ET "Relationship between voltage, current, power, and displacement in an ultrasonic transduce [Topic may change based on feedback]"

Here is the link to sign up for the upcoming webinar: https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar

Follow the link here to learn about my ultrasonic transducer consulting services and prices

Services and Prices