An ultrasound machine would require an ultrasound transducer. These are required as they are the part of the machine that delivers the image to the machine.
You can't produce ultra-sound from a normal speaker. There would be no current to drive the coil due to the high frequency. It would have to be an ultrasound transducer.
They use an ultrasound machine.
I don't know many people who have purchased a portable ultrasound machine that aren't in a medical field. I'm not sure a person can just buy one, but if you could it would be from www.absolutemed.com. They have them on there.
this would depend on what transducer you are asking about. a transducer is an electronic device that convers things like sound, light, heat, ect. into an electric signal.
Same reason as why pregnant women are ultrasounded - to check on the progress of the pregnancy, and the health of the fetus.
Then the machine would have a greater output power, or alternately, require less input power.
The question here has been framed wrongly. There is nothing like a general circuit for a transducer. Depending on a transducer you may have many circuits. For eg. a Piezoelectric crystal is a transducer, it can convert both ways; mechanical vibrations to electrical and electrical to mechanical. So you see, there is nothing like a general circuit for a transducer. Another better example would include an Antenna which converts electro-magnetic waves into a electric signal. All that you can say at max is that a transducer is a device that converts one form of energy to another. And that is either due to the virtue of the property of a material or due to a certain circuitry which will vary from transducer to transducer.
A transducer converts a form of energy to another form (usually voltage). e.g. A Current Transducer would read a current, and output a range of voltage that's related to the current. A voltage transducer is used when the voltage is too high or too low to be detected. A voltage transducer essentially transforms the voltage signal to something readable (e.g. Transforming 0~1000V to 0~5V)
There are numerous types of pharmaceutical equipment. This can range from something such as a stethoscope to large machinery such as an ultrasound machine or a CT Scanning machine. This covers just about anything that would be present and used in a medical or hospital environment.
A machine like that would require twice as much power and would prove to be ineffective.
A transducer converts a form of energy to another form (usually voltage). e.g. A Current Transducer would read a current, and output a range of voltage that's related to the current. A voltage transducer is used when the voltage is too high or too low to be detected. A voltage transducer essentially transforms the voltage signal to something readable (e.g. Transforming 0~1000V to 0~5V)
No, by that stage in a pregnancy, the baby would be ready to be delievered and would definitely show up on an ultrasound.