Hi, I'm a physics student from Nigeria and I'm interested in doing a project involving piezoelectric transducers.
The project will deal with how a piezoelectric material can produce voltage from the mechanical stress of a human footstep,
so my first question would be how and where can I find (buy) a piezoelectric transducer (plate) that can withstand the weight
of a footstep and is not so sensitive to vibration that any little disturbance will produce voltage. Or how can I dampen the
voltage response produced from ordinary vibrations/sounds/disturbances?
Please suggest which of the following products on Aliexpress.com will be best suitable for this purpose (that's basically
the only place I can easily get these piezoelectric materials shipped to Nigeria)
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www.aliexpress.com]
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www.aliexpress.com]
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www.aliexpress.com]
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www.aliexpress.com]
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www.aliexpress.com]
If none of these piezoelectric products can do the job, can you please suggest where I can get the right materials.
Secondly, I need the piezoelectric transducer to act as a sort of trigger/sensor such that the voltage is maintained for as long
as the foot is on the device, as soon as the foot is removed, the voltage should be cut-off. Can the circuit described in this
thread (using IC 555) be used for this specific purpose?
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forum.allaboutcircuits.com]
Can you give me any TESTED circuit where a piezo trigger (or sensor) is made to produce constant voltage when pressed (or strained
in one direction) and voltage is cut-off when pressure is released.
Will be expecting your informative replies. Thanks.
