Thank you very much! It helps me a lot in my research! I have a question. Since you are measuring d33 in the video, do the applied force have to be in the same direction of the polarization of the PZT?
Thanks for the video, it is really helpful. Something is not very clear to me Why u use a capacitor?, the PTZ don't have capacitance?, I am new in this and is a bit confusing. Greetings
I add a capacitor to reduce the voltage being measured and also increase the time constant between the piezo and the oscilloscope. Also, if we use a capacitor of known value, we can assume that the charge generated is Q=CV
I haven’t designed a low frequency d33 meter. That’s how the commercial meters work, though. With AC, it hard to figure out the applied force. Perhaps if I use a quartz crystal for force measurement.
Please Is there a difference in the performance of the piezo ceramic disc used in Milk analysis sensor between the PZT-5A type and the PZT-5H type, or are they the same performance?
Another way to apply a force is to lay the ceramic between two conductive plates, connect some leads to the plates and apply a weight to the top. Repeat as many times as you need to get a reliable measurement. If you use a pulley system the weight will come down nice and straight.
Please,Is Silver electrode material better nickel electrode in performance with ultrasonic sensor of milk analysis machine or the same at same specification ?
Please we need your help and support to know name of the best adhesive transparent glue which used to install the piezo ceramic disc on plastic Base without affecting on performance. *Application :Ultrasonic sensor for milk analyser , * idea is copper tupe and two piezo discs one is transmitter and another is receiver *Spesfication of piezo : Size : OD 5mm, thickness 0.5mm, 4Mhz
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Thank you for your videos! They help me in my research very much!
Thank you very much! It helps me a lot in my research!
I have a question. Since you are measuring d33 in the video, do the applied force have to be in the same direction of the polarization of the PZT?
Thanks for the video, it is really helpful.
Something is not very clear to me
Why u use a capacitor?, the PTZ don't have capacitance?, I am new in this and is a bit confusing.
Greetings
I add a capacitor to reduce the voltage being measured and also increase the time constant between the piezo and the oscilloscope. Also, if we use a capacitor of known value, we can assume that the charge generated is Q=CV
@@ultrasonicadvisors Thank you! this helps me in my research :)
I don't know if static measurement is realable. Have you tried to use selonoid vibrator and a load cell for d33 measurements?
I haven’t designed a low frequency d33 meter. That’s how the commercial meters work, though. With AC, it hard to figure out the applied force. Perhaps if I use a quartz crystal for force measurement.
Please Is there a difference in the performance of the piezo ceramic disc used in Milk analysis sensor between the PZT-5A type and the PZT-5H type, or are they the same performance?
PZT5a is better for an environment with wide temperature changes. PZT5h is better for a stable temperature.
@@ultrasonicadvisors many thanks,
Another way to apply a force is to lay the ceramic between two conductive plates, connect some leads to the plates and apply a weight to the top. Repeat as many times as you need to get a reliable measurement. If you use a pulley system the weight will come down nice and straight.
Great suggestion! The weight will make an exact force as long as the earth’s gravity stays the same :)
Please,Is Silver electrode material better nickel electrode in performance with ultrasonic sensor of milk analysis machine or the same at same specification ?
Hello, where are you located?
Michigan, USA
Please we need your help and support to know name of the best adhesive transparent glue which used to install the piezo ceramic disc on plastic Base without affecting on performance.
*Application :Ultrasonic sensor for milk analyser , * idea is copper tupe and two piezo discs one is transmitter and another is receiver
*Spesfication of piezo : Size : OD 5mm, thickness 0.5mm, 4Mhz