Ultrasonic Transducer Product Development Consulting
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Does "build, test, fix" equal "fail"?
Husain Shekhani • Jul 04, 2021
When should you resort to fast prototype iterations for your ultrasonic transducer development and when should you delve deep into analysis and thoughtful design? If done incorrectly, quick prototypes can lead to “shooting blindly” and deep analysis can lead to “analysis paralysis”.
It’s a complex question, but here is one easy rule of thumb: if you can tell exactly why your prototype did not work as expected, then you are in a good position to do quick iterations. However, if you cannot discern the reasons for low performance and variability, you need to take a structured approach.
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I hosted a webinar on January 26, 2024 on " Everything you need to know about designing and assembling power ultrasonic transducers " You can watch the recording on my YouTube Channel here: https://youtu.be/oAMjCGBXYms Here is a link to the pdf of the presentation notes: Webinar 24 - everything power transducers.pdf Summary In this webinar I gave a "catch-all" presentation on bolt-clamped ultrasonic power transducer. Specifically, I discussed: -How to design a power ultrasonic transducer (bolt-clamped) -How to assembly the transducer - How to test the transducer *** Announcement *** My next webinar will be on Friday, February 23, 2023 at 11AM EST. I will cover "How to determine to determine the requirements of your transducer application using an R&D electrical driver” (Topic will change based on LinkedIn poll to come) Here is the link to sign up for the upcoming webinar: https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar
I hosted a webinar on December 29, 2023 on " What happens to displacement at the antiresonance frequency of an ultrasonic transducer " You can watch the recording on my YouTube Channel here: https://youtu.be/Zj9fXkaEADw Here is a link to the pdf of the whiteboard notes: Webinar 23 antiresonance displacement.pdf Here is a link to the Waveforms workspace file: webinar23_wvforms_displacement.dwf3work Summary Using a laser doppler vibrometer, I demonstrate that the mechanical displacement is not affected by the antiresonance phenomenon of ultrasonic transducers. In this webinar, I show experiments and talk about theory. I also talk about mechanical antiresonance. *** Announcement *** My next webinar will be on Friday, January 5, 2023 at 11AM EST. I will cover "How to measure the accuracy and linearity of an laser doppler vibrometer for ultrasonic transducers” Here is the link to sign up for the upcoming webinar: https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar
How to use multiple transformers to increase voltage and power delivered to an ultrasonic transducer
I hosted a webinar on December 15, 2023 on " How to use multiple transformers to increase voltage and power delivered to an ultrasonic transducer " You can watch the recording on my YouTube Channel here: https://youtu.be/Xb8JaKivXzw Here is a link to the pdf of the whiteboard notes: Webinar22_double_transformers pdf Summary In this webinar, I (1) Describe the use cases of using 2 or more transformers (2) Demonstrate voltage doubling using two off the shelf transformers *** Announcement *** My next webinar will be on Friday, December 29, 2023 at 11AM EST. I will cover "What is the difference in vibrometer measurements of an ultrasonic transducer at anti-resonance and at resonance” Here is the link to sign up for the upcoming webinar: https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar
I hosted a webinar on December 8, 2023 on " How to make Impedance Measurements of Ultrasonic Transducers with the Digilent Analog Discovery " You can watch the recording on my YouTube Channel here: https://youtu.be/B8llEdp1X2o Here is a link to the pdf of the whiteboard notes: webinar21_digilent_impedance.pdf Here is a link to the calculation script: analog_discovery_impedance_script.txt Summary In this webinar, I show how to make impedance measurements of ultrasonic transducer with the Digilent Analog Discovery. I go over the following topics: (1) Overview of hardware (2) Settings overview and measuring the accuracy of the measurements (3) Measure impedance response of ultrasonic transducer – like an expert! *** Announcement *** My next webinar will be on Friday, December 15, 2023 at 11AM EST. I will cover "How to use two transformers to double voltage gain in an ultrasonic transducer drive circuit” Here is the link to sign up for the upcoming webinar: https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar
I hosted a webinar on November 24, 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/xvy5jdbIEQQ Here is a link to the pdf of the whiteboard notes: Webinar 20 notes - custom 10x probe Summary In this webinar, I describe the theory of a 10x probe and practically how to make your own very simple 10x probe that does not require any compensation. This is super useful for ultrasonic and audio work. *** Announcement *** My next webinar will be on Friday, December 1, 2023 at 11AM EST. I will cover "How to make impedance measurements of ultrasonic transducers using the Diligent Analog Discovery” Here is the link to sign up for the upcoming webinar: https://www.ultrasonicadvisors.com/monthly-ultrasonic-webinar