How to use an oscilloscope to make measurements on an ultrasonic transducer system
I hosted a webinar on August 25, 2023 on
"How to use an oscilloscope to make measurements on an ultrasonic transducer system"
You can watch the recording on my YouTube Channel here:
Here is a link to the presentation notes.
Topics
In this webinar recording, I demonstrate the most required skill when working with ultrasonic transducers - how to use an oscilloscope. This is practically the only way to measure and interpret ultrasonic transducer performance. Its use is priceless in troubleshooting and design.
Video outline:
- 0:46 - Outline of presentation
- 2:10 - What is an oscilloscope
- 6:48 - Introduction to my consulting work
- 8:20 - USB vs. Bench oscilloscopes
- 15:30 - Overview of probes
- 19:00 - 10x probe options
- 21:00 - 1x probe vs. BNC to clip
- 22:45 - Differential probe options
- 24:50 - Equivalent circuit of a 10x probe
- 26:45 - Compensation capacitor
- 27:00 - Current clamp probe or voltage probe + resistor for current
- 28:30 - Recommended oscilloscopes and probes
- 33:20 - Set up of an oscilloscope
- 35:11 - Measurement set up
- 35:40 - Circuit for resistor current measurement
- 43:15 - Demonstration of the set up of a benchtop oscilloscope
- 49:30 - How to prove an ultrasonic driver circuit
- 54:10 - Set up of Picoscope (4-channel USB oscilloscope) for input DC power and output ultrasonic power measurement for steady state analysis. (RMS voltage, current, and power)
- 59:40 - Set up of Picoscope for transient analysis of ultrasonic signals on a power ultrasonic transducer
***Announcement***
My next webinar will be on Friday, September 29, 2023 at 11AM EST. I will cover
"Preload measurement circuit for bolt-clamped ultrasonic Langevin transducers”
Here is the link to sign up for the upcoming webinar:
https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar