Principle of ultrasonic receiving circuit
The ultrasonic receiving circuit is an electronic circuit used to receive ultrasonic signals. It usually includes a transducer (also called an ultrasonic probe), which converts ultrasonic signals into electrical signals, and an amplifier, which amplifies the converted electrical signals.
The working principle of the ultrasonic receiving circuit is based on the principle of the transducer. A transducer is a structure composed of an iron core and a coil that has the ability to convert ultrasonic signals into electrical signals. When the ultrasonic signal passes through the transducer, it produces a dynamic effect on the iron core, which in turn causes the coil to generate an electromotive force. The electromotive force this generates is amplified by an amplifier and further processed through signal processing circuitry, ultimately resulting in a readable signal.
By using ultrasonic receiving circuits, the structure, density, elasticity and other physical properties of objects can be measured and analyzed. It has wide applications in medical imaging, industrial detection, ocean exploration and other fields.