A Time-of-Flight (ToF) sensor is a non-contact sensor which measures the time it takes for a light pulse to travel to an object and back, allowing it to determine distance with high precision. It works by emitting infrared light, which reflects off objects and returns to the sensor. By calculating the time difference, the sensor can map depth and distance.
ToF sensors are widely used in:
Smartphones & Cameras – For facial recognition and depth sensing.
Robotics & Drones – To detect obstacles and navigate environments.
Automotive Applications – In advanced driver-assistance systems (ADAS).
Industrial Automation – For object detection and measurement.
Agriculture
Logistics
Access Control
The distance measured by a Time-of-Flight (ToF) sensor depends on the specific model and its capabilities. Generally, ToF sensors can measure distances ranging from a few centimeters to several meters with high accuracy.
For example:
The VL53L1X ToF sensor can measure distances between 4 cm and 400 cm (4 meters) with a resolution of 1 mm.
ToF sensors used in industrial applications can measure distances beyond 10 meters, depending on the optics and signal processing.
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