I hosted a webinar on November 17, 2023 on

"How to measure the d33 coefficient of a piezo ceramic by applying a force and measuring a voltage"

You can watch the recording on my YouTube Channel here: 

https://youtu.be/iOslucScEik

Here is a link to the pdf of the whiteboard notes: Webinar 19 d33 notes

Here is a link to the finalized code, which measures voltage and converts it into MPa with the needed inputs: Webinar18_ads1115_20231110122622.zip

Summary

In this webinar, I show how to use an Arduino and the ADS1115 ADC to measure preload voltage of a transducer with high impedance impedance. I have a long discussion about using the ADS1115.

I talk about theory, using the ADS1115, and show live demo and the Arduino code.

***Announcement***

My next webinar will be on Friday, November 17, 2023 at 11AM EST. I will cover

"How to measure the d33 coefficient of a piezo crystal using a known applied force”

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