Makes sense. Seems the case. Ill try to remember you are one of the good ones on here.

Sometimes the most helpful thing members of this forum can do is recommend a good article, website or book. Far better to recommend a comprehensive article than try to paraphrase or compress it down to a few sentences than can be typed here.
Also, anyone can learn, but understanding is more difficult - unless the new knowledge links to your existing knowledge, you don't understand. It just takes patience to find an explanation that achieves that. It doesn't mean that other explanations are bad, they just don't make that link with your existing knowledge.

 

How long do we need to put up with this guy? Telling every mod he comes into contact with not to post in his threads!

 

I got some piezo discs, hook one up to my multimeter, apply pressure to disc, get voltage, switch over to measure current, get nothing. I repeat same process with a second and third disc, and get same results. Ive seen people use these, not mine, but these same piezo discs to power an led hooked strait up and applying a little pressure. So, i should be getting at least some milliamps, but the meter never goes above or below zero. Its just zero. Not even a flash of a negative sign. What confuses me even more is that i get over 20 volts aka the disc seems to be generating electricity. Is it possible for a piezo disc to generate only voltage and zero current, or are they defective? And no, i did not try them all, only three. All three had same results. Voltage up to 20 some volts and zero current.

In the best interest of keeping this simple. The below is an image of me tapping the same piezo elements you have.


The vertical range is -5V to 5V, the compression is 1.0 and the time / div is 0.0097 sec. The piezo transducer was merely being tapped and recorded using a data acquisition unit. The DAQ input impedance is 10 Meg. Ohm. Placing any load on the piezo crystal will result in zero output. When you bang the crystal and measure with your voltmeter the meter input impedance is likely 10 Meg Ohm. However when you try to measure current the meter is measuring across a shunt of likely a very low resistance. The specification sheet for your meter will cover that.

A piezo transducer like you have is not a current producing device, their ability to produce current is negligent. You are not going to drive a LED directly from a piezo transducer like you have. Simply not going to happen. The output of a piezo transducer would be suited, for example, to drive a MOSFET or high input impedance amplifier but not a LED. Simply not going to happen.

As to your comments to date? You will find that you can attract more flies with honey than vinegar and learning to swim in the deep end of the pool is not a good idea. Read the basics on Piezo Transducers and get familiar with their capabilities.

Ron

 

I am not sure the others here have caught on that you are a free energy fanatic. There is no sense in arguing with or trying to educate such people.

And I did answer your question. I told you that piezo discs do not act like the faked YouTube videos say they do. They will not put out continuous power when under pressure, only when the pressure changes. But you don’t like my answer so you attack me instead of trying to understand. Others have told you that, even when the pressure is changing, the power output is tiny, but you don’t believe them either. I will not waste any more than me with you, bye bye.

Bob

 

5V in the 10M input of your multimeter is a current of 5V/10M= 5uA which is 1000 times less than the 5mA current in a fairly dim LED.
The duration of the voltage is much shorter than your vision can see a blink if it is amplified.

 

I am not sure the others here have caught on that you are a free energy fanatic. There is no sense in arguing with or trying to educate such people.

And I did answer your question. I told you that piezo discs do not act like the faked YouTube videos say they do. They will not put out continuous power when under pressure, only when the pressure changes. But you don’t like my answer so you attack me instead of trying to understand. Others have told you that, even when the pressure is changing, the power output is tiny, but you don’t believe them either. I will not waste any more than me with you, bye bye.

Bob

I figured that. When I was a kid I played that game. Before automotive alternators came about I was playing with automotive generators and car batteries. I had an epiphany when I discovered that applying voltage to a generator it turned backwards. This was a big discovery for a 10 or 12 year old. Why had nobody before me picked up on this. So I managed to nail down two car generators using a V belt twisted like a figure 8. One to be my motor and the other to charge my battery. With my father's words echoing in my head "Ronald you can't get something for nothing" I persisted. Eventually my father explained it all to me in terms a 12 year old could understand. He was also big on handing me books when I asked questions. Eventually I figured things out and discovered learning to swim in the deep end of the pool was not a good idea.

It's worth noting that people seeking anything over unity gain have no understanding of what they are trying to achieve and place stock in nonsense they see on the Internet. I am likely fortunate the internet did not exist during my formative years. My mom could not understand why after washing my trousers they had holes till my father told me to stop playing with battery acid. Many of us learn the hard way. The thread starter, like many of his prior post will keep asking the same line of questions till either he gets an answer he likes or figures out there is no free ride.

Ron