Laser Sensor Working and Its Applications

The applications of an industrialized inspection need detection of presence and absence of an object. This can be solved by using a laser sensor to solve quality control tasks. Attaining stable & accurate measurements is essential to ensure reliable product values & error-free production. This sensor can be used on reflective surfaces, numerous materials, & colors. These sensors include a rough, independent housing, a linear imager, a pinpoint laser emitter. For adjusting of these sensors, any external controller is not required and it can be placed on any location of the machine. The configurations and adjustments for these sensors can be done through different software tools.

What is a Laser Sensor?

The definition of a laser sensor is, it is an electrical device used to sense minute objects and precise positions. This sensor uses a laser to produce light within a straight line. Its visible ray mark of the laser makes arrangement very simple. Laser light includes light waves with similar wavelengths. Because of this reason, the beam travels in a parallel direction.

The laser light beam is very hazardous for human eyes when you look into the light beam when it is activated, and it can cause loss of sight too. This light can be used to transmit the information over long distances.


Pin Configuration and Working Principle

Basically, this sensor has two pins which are named as power pins. This sensor has basically two pins, usually known as power pins. We should know the basic functionality of these pins in order to utilize this sensor properly.

  • VCC Pin is a voltage supply pin
  • NC pin is not connected pin
  • GND pin is a ground pin

When the laser emits the light beam in the transmitter and it receives the light beam by the receiving element within the receiver.

Types of Laser Sensor

These sensors are classified into different types based on the necessities of an exact application which includes CCD (charge coupled devices), CMOS (complementary metal oxide semiconductor), PSD ( positive sensitive detectors), and photoelectric sensors.


Laser Sensor Ratings

Ratings of any electronic components provide us the specifications which are discussed below.

  • The supply voltage is 5V (DC)
  • Current is 30 Ma
  • Wavelength is 650 nm
  • Wavelength color is red

Advantages and Disadvantages

The advantages of this sensor include the following

  • The range of measurement is large
  • Operating distance is large
  • Resolve capacity less than one micron at a decreased price

The disadvantages of this sensor include the following

  • The accuracy of the sensor can be affected by dust or other materials
  • Damages eyesight

Laser Sensor Applications

The uses of this sensor mainly include the following.

  • Location of the robot
  • Track alignment of the railroad
  • Quality controlling
  • The thickness of the brake rotor
  • Welding head position
  • Process checking of wood thickness

Thus, this is all about laser sensor, working principle, and its applications. Laser sensor technology gives several benefits over usual mechanical devices which are used for measurement, that includes measurement of the non-contact, tiny measurement area, data collection with high-speed, flexible operation, and solid-state design. Here is a question for you what are the examples of laser sensor?