Is your ultrasonic transducer working at the right frequency?

In this video, I explain different methods to find out if your ultrasonic transducer is working at the right frequency.
** Learn about my ultrasonic transducer consulting offerings, including a free discovery call**
www.ultrasonic...

[@alialshammary7188]

Thank you

[@ultrasonicadvisors]

My pleasure!

[@michaelcostello6991]

Have you a video explaining in basic language of a piezo spec sheet and how to get max loudness in db etc etc

[@ultrasonicadvisors]

Thanks for the suggestion. I'll do that

[@farazamini4388]

Thanks a lot, I wondered if you could share some information (or make a video) for customized ultrasonic generators with wide frequency range (10kHz range) for exciting one transducer with several horns, like the ultrasonic bone surgery devices, which a transducer works with over 90 inserts (horn), how is that possible?

[@ultrasonicadvisors]

That is a really good idea! I am planning to get to this topic, because it is quite important.

[@coucouj2781]

I have a project where I plan using a royer oscillator (ZVS type) to power a langevin transducer.
I understand how to calculate frequecy (LC circuit) of primary, but for secondary winding what would be other considertaion?

[@ultrasonicadvisors]

I have less experience with oscillators than I would like. However, here is my thought. I've seen oscillator driven transducers operated with high voltage at semi-off-resonance conditions. this makes the transducer look like a capacitor. Also, at times the primary side is made to be dominant, so the transducer has little effect on operating frequency. Hope that provides some insight.

[@jimmy_jamesjams_a_lot4171]

How to find whether your ultrasonic transducer is calibrated? Use a calibrated ultrasonic transducer wired as a microphone!!

[@ultrasonicadvisors]

That works!

[@ankitpandey5513]

Hlw ...i need help regarding active vibration control can you make a video on it plz

[@ultrasonicadvisors]

I have not worked in that area, but I might consider researching the topic and making a video.

[@MJavid-qs7sk]

could you please introduce some useful books about power ultrasonics?

[@ultrasonicadvisors]

Thanks for the question. Unfortunately, I don't have a recommendation.

[@UltralydvaskingLillehammer]

Thanks a lot for giving this kind of info, got a question if i might :
i have a watt / frequentiemeter if i put that between the generator and the piezo elements i kan read both values .
The ferq. the generator produces can be tuned by a pot. meter on the bord .
Do i go for that freq. where the power is at its highest ?? Thanks

[@ultrasonicadvisors]

Yes, in general you will go for the frequency at which the power is the largest. However, you should be searching for this frequency in a range that you already expect, for examples for a 40kHz transducer, you will search between 36khz-44kHz

[@UltralydvaskingLillehammer]

@@ultrasonicadvisors thank you , the wattage is the highest on 38.3 khz , while the transducers where on 40 +/_ 0,1 Khz
could it be that the piezo elements are failing? or could for example the cleaning tank design has influence ?? greetings from a cold Norway !!

[@ultrasonicadvisors]

@@UltralydvaskingLillehammer Love the discussion. Is your transducer mounted? The stand alone transducer maybe 40kHz, but mounted it maybe 38kHz.

[@UltralydvaskingLillehammer]

@@ultrasonicadvisors yes the transducers are bonded to the tank , its a 250 ltr tank with 4x10 50watt transducers, every row of 10 piezo"s. Is fed by a 500watt generator which i can adjust.
So i go for that freq. Where the wattage peaks?

[@ultrasonicadvisors]

@@UltralydvaskingLillehammer In general, yes. However, I think 500W may not be powerful enough to drive 40 transducers?

[@michaelcostello6991]

Can listening to these high frequencies cause tinitus which is ringing in the ears and has no cure. I would advise people not to mess with this stuff.

[@ultrasonicadvisors]

Hmm hard to say. Don't know much about that. You can't hear ultrasonic frequencies, but with your ear in the wrong place, you can still get subjected to a significant amount of energy. I would say not to worry about it unless you are putting your head inside an ultrasonic cleaning tank or you are working on high power air transducers.

[@michaelcostello6991]

@@ultrasonicadvisors Thanks for your reply. I still think it's very dangerous based on the fact there is no cure for tinitus and many many people get it worldwide. It could trigger it in some people.

[@indunilprabhath1484]

How to generate frequency for "40khz 35W Ultrasonic Piezoelectric Cleaning Transducer " properly work.

[@ultrasonicadvisors]

Great question. Easiest way is to buy a commercially available circuit. Many of them are based off oscillator circuits (no digital control)

[@indunilprabhath1484]

@@ultrasonicadvisorsthank you sir, i want to made above circuit , plz give me resources, (link or image).

[@tanvirmahmud1048]

Is 40khz ultrasound harmful?

[@ultrasonicadvisors]

40kHz from distance sensors and ultrasonic cleaners are not harmful