Colour Mark Sensors

Rajvi Instruments stands as a leading player in Industrial Process Instrumentation and Automation. With decades of experience in manufacturing sensors and process instrumentation, we offer comprehensive end to end automation solutions that are ideal in all aspects. Our range of products includes programmable logic controllers, rotary encoders,bar code scanners, SMPS,relay cards and other associated products.Our purpose is to deliver best quality products to our customers, driven by our dedicated workforce, modern infrastructure and cost effective solutions.

Product Introduction:

Colour mark sensors are a type of sensor used in industrial automation to detect and identify colours on a surface, playing a crucial role in various industries such as packaging, printing and manufacturing, where colour detection is essential for quality control and process automation. They operate on the principle of colour reflection, emitting a specific wavelength of light that is reflected back by the surface, detected by the sensor and analyzed to provide an output signal indicating the presence or absence of a specific colour.

A typical colour mark sensor consists of three primary components: a light source, usually a light-emitting diode (LED), a detector, typically a photodiode or phototransistor and a processing unit, usually a microcontroller or dedicated IC. They can operate in two primary modes: reflective mode, where the sensor is placed on the same side of the surface as the light source and transmissive mode, where the sensor is placed on the opposite side of the surface as the light source. Colour mark sensors can detect colours based on various parameters like shade, saturation and brightness, with their colour detection capabilities determined by their spectral sensitivity. They are designed to provide high accuracy and reliability in colour detection, often equipped with features such as automatic gain control and noise reduction techniques.

Calibration is required to ensure accurate colour detection, involving adjusting the sensitivity of the sensors and gain to match the specific colour detection requirements of the application and regular maintenance such as cleaning the sensor lens and checking the light source, is essential to ensure the accuracy and reliability of the sensor.

Types of colour sensors:

• RGB Color Sensors

• CMYK Color Sensors

• Multispectral Color Sensors

• Color Measurement Sensors

• Reflective Color Sensors

• Colorimetric Sensors

• Digital Color Sensors

• Optical Sensors with Color Filters

• Tri-Color Sensors

• Spectral Sensors

Applications:

• Automated Packaging

• Printing Press Control

• Textile Industry

• Food Processing

• Robotics

• Assembly Line Monitoring

• Quality Control

• Automotive Industry

• Electronics Production

• Recycling Operations