The hardware composition and types of ultrasonic sensors 1

An ultrasonic sensor is a device that measures distance or detects objects based on the properties of ultrasonic waves, widely used in industrial automation, vehicle detection, and robot obstacle avoidance. It operates by emitting ultrasonic pulses and receiving the reflected pulses, calculating the distance by measuring the round-trip time of the ultrasonic waves. This article will provide a detailed introduction to the hardware components and types of ultrasonic sensors.diode

1. Hardware Composition of Ultrasonic Sensors

The main hardware components of an ultrasonic sensor include the transmitter, ATTINY44A-SSFR receiver, control unit, and signal processing circuit.diode

1. Transducer: The transducer section consists of piezoelectric crystals or ceramics, which convert electrical energy into acoustic energy to generate ultrasonic waves. These ultrasonic waves are emitted in pulse form, typically within a frequency range of 20kHz to 400kHz.diode

2. Receiver: The receiver is similar in material to the transmitter and is typically made of piezoelectric material, capable of converting received ultrasonic signals back into electrical signals. In some designs, the transmitter and receiver may be the same physical unit, meaning it can both emit and receive ultrasonic waves.diode