What is an ultrasonic sensor, and a comparison between optical and ultrasonic sensors 2

Optical sensor: It is greatly affected by lighting conditions, such as strong light or reflection, which may interfere with the measurement results. In low visibility environments such as fog, smoke, and dust, the performance of optical sensors will decrease.diode

2. Detection range and accuracy:

Ultrasonic sensor: suitable for measurements at close to medium distances, typically ranging from a few centimeters to a few meters. Ultrasonic sensors have relatively high accuracy, but their resolution is usually lower compared to optical sensors.

Optical sensors, especially laser sensors, can achieve longer detection distances and higher measurement accuracy. Optical sensors can capture finer details and are suitable for precise measurements.diode

3. The influence of surface characteristics of objects:

Ultrasonic sensor: It is not very sensitive to the reflectivity of object surfaces and can detect objects made of various materials. However, very smooth or curved surfaces may cause ultrasonic reflections to deviate from the sensor, thereby affecting the accuracy of measurements.diode