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TeraRanger’s long range IR LED-based time-of-flight sensor

TeraRanger's long range IR LED-based time-of-flight sensor

Nov 7, 2017: TeraRanger Evo is the long range time-of-flight distance sensor of the TeraRanger product family. It provides calibrated distance readings in millimetres and has a range up to 60m, whilst remaining lightweight and small!

Instead of laser, TeraRanger Evo uses LED technology. One advantage of this is that it enables the sensor to have a “Field of View” so that, rather than measuring distance based on a very small point of light, the sensor measures over an area. At 1m distance the area is approximately 3cm by 3cm. At 10m it is approximately 30cm by 30cm, increasing linearly with range. For many applications, this is a significant advantage and provides a more appropriate and stable datastream. Examples include drone flight over vegetation, a robot navigating close to a slatted fence, or irregular shaped objects being detected at high speed.

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The sensor has a field of view of approximately 2º, which means it measures distance over an area. At on meter of distance the area is approximately 3x3cm, at 10m it is approximately 30cm by 30cm, increasing linearly with range. For many applications this is a significant advantage and provides a more appropriate and stable data stream. Examples include drone flight over vegetation, a robot navigating close to a slatted fence, or irregular shaped objects being detected at high speed. The 29x29x22mm unit (sensor + backboard) has a range resolution of 0.5cm below 14m and 2cm from 14m, with an accuracy of ±6cm or better in the first 14m and 1.5% beyond 14m. It operates from a 5V DC supply, drawing from 90mA to 330mA.

Each sensors ships with one backboard of your choice (select below). Additional backboards can be purchased in USB or I2C/UART options from the Sensor Accessories section.

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