What is the order in which the signal travels in the ultrasound system?

What is the order in which the signal travels in the ultrasound system?

• A. Transducer, receiver, display, scan converter
• B. Scan converter, transducer, receiver, display
• C. Scan converter, receiver, transducer, display
• D. Transducer, receiver, scan converter, display

Answer: (D)

The signal path starts with the transducer, which both sends the acoustic pulses and receives the echoes from tissues. Those echoes are converted into electrical signals by the transducer and then sent to the receiver, where they are amplified, filtered, and demodulated to produce a usable, processed signal. After the receiver has conditioned the data, it moves to the scan converter, which transforms the processed signals into a displayable image by organizing the data into image pixels along the scan lines. Finally, the display shows the image to the operator. This order makes sense because you must first generate and capture data, then amplify and process it, then convert it into a visual format, before it can be shown. Putting any later stage before data acquisition or processing would leave you with no usable information to display.

The signal path starts with the transducer, which both sends the acoustic pulses and receives the echoes from tissues. Those echoes are converted into electrical signals by the transducer and then sent to the receiver, where they are amplified, filtered, and demodulated to produce a usable, processed signal. After the receiver has conditioned the data, it moves to the scan converter, which transforms the processed signals into a displayable image by organizing the data into image pixels along the scan lines. Finally, the display shows the image to the operator.

This order makes sense because you must first generate and capture data, then amplify and process it, then convert it into a visual format, before it can be shown. Putting any later stage before data acquisition or processing would leave you with no usable information to display.