I am looking for piezo transducers with the following specs:
Resonance frequency 10.5khz
Resonant Resistance: 400 Ω
Capacitance 12,000pF@100Hz
Disc diameter:~15mm


I do not have much of an electrical background therefore, I have been having trouble locating those type specs. I have found however, these on eBay:

Resonant Frequency: 6.8 ±0.7kHz
Resonant Resistance: 300Ω Max
Capacitance: 15,000pF ±30%
Disc diameter: 20mm


Also, I found a guy that sells some with the following specs:
Resonant Frequency: 6.5kHz Resonant Resistance: 500 Ω
Capacitance: 14,000pF
External Diameter: 20mm


What do you think, folks ? I'd like to find specs that match the first transducer. If the specs are close, can they be easily tweaked ? Thanks a lot guy ?


Bret

 

You cannot tweak the qualities of the transducer, but maybe you can adapt your application to use the specs of the new transducer.

 

What are you trying to measure and what are you trying to measure it with?