The hardware composition and types of ultrasonic sensors 2

3. Control Unit: The control unit serves as the "brain" of the sensor, responsible for generating ultrasonic pulses from the transmitter and calculating distance based on the reflected waves received by the receiver. It typically includes a microprocessor or microcontroller, executing corresponding algorithms and processing routines.diode

4. Signal Processing Circuit: The signal processing circuit is responsible for amplifying, filtering, and converting the weak electrical signals received, enabling them to be effectively processed by the control unit. This section often includes components such as amplifiers, filters, and analog-to-digital converters (ADCs).diode

II. Types of Ultrasonic Sensors  diode

Ultrasonic sensors can be classified into different types based on their working principles and application fields:

1. Single-Converter Sensor: This type of sensor uses the same physical unit as both the transmitter and receiver. It operates by switching between transmission and reception, making it suitable for distance measurement and simple object detection.

2. Dual transducer sensor: This type of sensor consists of two independent physical units, one for transmitting ultrasonic waves and the other for receiving them. Dual transducer sensors offer more accurate measurements and are suitable for applications requiring high-precision detection.diode