ToF sensor enables multi-object ranging from 2.5cm to 3m

ToF sensor enables multi-object ranging from 2.5cm to 3m
New Products |
STMicroelectronics has extended the capabilities of its FlightSense ToF ranging sensors with the VL53L3CX, leveraging patented histogram algorithms that allow measuring distances to multiple objects as well as increasing accuracy.
By Julien Happich

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The VL53L3CX measures object ranges from 2.5cm to 3m, unaffected by the target color or reflectance, unlike conventional infrared sensors. This allows designers to introduce powerful new features to their products, such as enabling occupancy detectors to provide error-free sensing by ignoring unwanted background or foreground objects, or reporting the exact distances to multiple targets within the sensor’s field-of-view. The ST patented histogram algorithms increase cover-glass crosstalk immunity and allow real-time smudge compensation preventing external contamination from adversely affecting the ranging accuracy of, for example, vacuum cleaners or equipment that may be used in a dusty industrial environment. Ranging under ambient lighting is also improved.

In addition, the VL53L3CX has superior linearity that increases short-distance measurement accuracy enhancing wall tracking, faster cliff detection, and obstacle avoidance in equipment such as service robots and vacuum cleaners, markets in which ST has already enjoyed considerable commercial success. Like all FlightSense sensors, the VL53L3CX features a compact, all-in-one package design that eases integration in customer devices, as well as low power consumption that helps extend battery runtime.

STMicroelectronics – www.st.com

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