PkW = 0.85 (230 V) (10 amps) / 1000 = 1.96 kW. Php = 0.85 (230 V) (10 amps) / 746 = 2.62 hp. Electrical power is in general rated in watt (W) or horsepower (HP). A horsepower is a unit of power equal to 746 watts or 33,000 lb.ft per minute (or 550 lb.ft per second). A watt is equal to the power produced by a current of 1 amp across the potential difference of 1 volt. A watt is 1/746 of 1 horsepower. Even if the watt is the base unit of electrical power, it is common to rate motor power in either horsepower or kilowatts.
Also, ultrasound is used for real-time imaging of the location of the tip of a catheter as it is inserted in a blood vessel and guided along the length of the vessel. It can also be used for minimally invasive surgery to guide the surgeon with real-time images of the inside of the body.
In general, ultrasounds (or sonograms) are technically used in medicine to detect changes in appearance of organs, tissues, and vessels or to detect abnormal masses. Most people think of them as what pregnant women get to see the fetus inside their body. However, they have many, many other important uses. Ultrasound scanning is noninvasive and is usually painless. It is widely available, easy-to-use and less expensive than other imaging methods. It can be a safer option since it does not use any x-ray radiation and provides a clear picture of soft tissues that do not show up well on x-ray images. Ultrasounds can provide real-time imaging. Physicians may use ultrasound as a diagnostic tool but itâs not limited to diagnosis.