I am very new to this discussion, so please "speak slowly" ;)
I need to measure the vibrations of hundreds of widgets in parallel and need:
- low cost
- low physical profile
- easy application of the device
- no worries about batteries failing
It seems piezoelectric vibration sensors may be for me. But these devices simply generate electricity, true?
Would I use a piezoelectric vibration sensors in unison with an active RFID chip which transmits the vibration via wireless for that widget?
Or, does the piezoelectric vibration sensors already contain some form of wireless transmission?