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By weanich
#198109
I'm new about the hardware project and I want to know about this product (Piezo Vibration Sensor - Large with Mass)
1.What is the operating frequency range of this product and how can I measure the range of operation?
2.What is the voltage spike range that product can generate and Can I protect using A big resistor to reduce voltage?
3.If I want to plot graph of measured data by connected to Arduino. The arduino uno has ADC converter 10 bit I think the measured data
will be plotted only positive value. How can I received positive and negative value to plot on arduino? need more circuit and what component
I have to looking for?
4.If I want to plot displacement graph, I have to find Analog ac from ADC first then find G from voltage sensitivity and calculate displacement from G right?

thank you.
By weanich
#198120
update in case of negative voltage can I apply clamper circuit to shift negative voltage to positive?