Ultrasonic receivers are electronic devices that are designed to detect and convert ultrasonic signals into electrical signals. They are commonly used in applications such as distance measurement, object detection, and non-destructive testing.Ultrasonic transmitters, on the other hand, are electronic devices that generate and emit ultrasonic signals. They are used in various applications including medical imaging, industrial cleaning, and animal deterrent systems. These transmitters typically operate at frequencies above the range of human hearing and can be used for both short-range and long-range communication.