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Question:

How do ceramic transducers work?

What are the theories and principles behind ceramic transducers, and what are its applications?

Answer:

very confusing situation. check out in yahoo or google. that will might help!
It can be tough now that there is water in the pipe. You will have to eliminate the water in the pipe by draining that area. Then, open the faucet it feeds to releave the pressure you will create during soldering. Now that that is accomplished, you will have to resolder the pipe. If all this sounds confusing, and you don't know how to properly solder, I suggest you bring in a professional to do the job. It isn't a difficult fix, but it does take some skill and experience to properly solder a copper pipe.
Not much to it. Id say its leaking at the connection to an elbow, or T , not in a seam on the copper pipe. Either way, get yourself a map gas torch and a can of map gas plus solder and flux. If its leaking in seam, cut section out with a tubing cutter, then slip a coupling over each end and a piece of new tubing in there Clean the joints with steel wool. Then flux the copper joints. Then take that map gas torch and heat the fitting, not the tubing. Soon as it gets hot put the solder to it. Thats it. It is then done. Wet or not that Map gas torch will heat the thing hot enough to solder. You dont weld copper, you solder it. Go to Lowes and get the stuff, cost is about $30 for all ive mentioned including th Map gas torch. Enough for a lifetime of repairs on copper tubing.
Ceramic transducers exhibit the property of crystals called the piezoelectric effect, where the solid produces a voltage (potential difference) in response to mechanical stress and vice-versa. Piezo elements can be used indicate pressure or deflection, such as in strain gauges or scales. They can also pick up mechanical vibration, such as in a microphone. A high impact on a crystal can produce a high voltage - an effect exploited in some butane lighters. Used as drivers, they can be used to make sound (piezo tweeters) or as mechanical actuators (micro-steppers, inkjet printers.) Links o' rama below.

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