DESCRIPTION

El sensor de reflectancia QTR-1RC lleva un solo par de LED infrarrojo y un fototransistor. El fototransistor utiliza un capacitor de descarga que permite un linea digital I/O en un microcontrolador para tomar una lectura analógica de la reflectancia IR para la medición del tiempo de descarga del capacitor. Un menor tiempo de descarga del condensador es una indicación de una mayor reflexión.

La resistencia de limitación de corriente del LED está configurado para entregar aproximadamente 20-25 mA para el LED cuando VIN es de 5 V. La corriente requerida pueden ser satisfechas por algunas líneas de un microcontrolador I / O, lo que permite que el sensor se encienda y se apague a través de una línea de I/O para ahorrar energía.

Debido a su pequeño tamaño, pueden ser fácilmente colocado para adaptarse a diversas aplicaciones tales como detección de línea y detección de proximidad.

NOTA: Para seguidores de línea, tenemos un arreglo con ocho de estos sensores en una linea, consulte nuestro producto 1250.

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SENSOR DE LINEA QTR-1A Free 3D model

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