QTR-HD-11A Reflectance Sensor Array: 11-Channel, 4mm Pitch, Analog Output
|pitch × sensors||size
|4 mm × 11||45.0 × 20.0||analog||30 mA||185 mA||5 mm|
This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9 V to 5.5 V and offers dimmable brightness control independent of the supply voltage and separate controls for the odd and even emitters. In general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 40 mm. This version features the traditional-style QTR sensors without lenses.
Alternatives available with variations in these parameter(s): sensor type sensor count sensor pitch output type
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Documentation and other information
Information about using the Pololu QTR reflectance sensors, including differences between A-type and RC-type sensors and sample oscilloscope screen captures of sensor outputs.
This file contains 3D models (in the step file format) of the QTR and QTRX Reflectance Sensor Arrays.
These DXF drawings show the locations of all of the holes on the QTR and QTRX Reflectance Sensor Arrays.