Ultrasonic Transducer Product Development Consulting
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Automation, easier than ever!
Husain Shekhani • May 18, 2021
Digitally controlled relay boards make automation easier than ever!
Often times, only one set of expensive test equipment can be purchased. The impedance analyzer is a common piece of equipment that fits this bill (new impedance analyzer ~$30k). This creates a bottleneck in transducer testing.
In order to solve this issue, you should consider writing a script to use an Arduino to trigger a relay board. With simple wiring and some scripting, you can use the 8-channel relay board above to test 8 transducers at one time. There are also readily available 16 relay boards. You can even wire one of the relays to a test device to ensure consistency between measurements.
What would you do with the extra time you save by collecting your data 8x as fast? Testing one transducer not only takes longer, but it involves manual labor and concentration. Do the math and be good to yourself; invest a little time in automation.
Follow the link here to learn about my ultrasonic transducer consulting services and prices
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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
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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