Laser and sinusoidal waves
The purpose of this project is to learn a little bit about laser waves, the frecuency of the wave, its equation, and other interesting facts. To have a better idea of this topic and how it works lets guide ourselves with the following essential questions.
Essencial questions:
1. background information about laser waves and laser code readers, curious facts about them.
2. What are the main components in a laser code reader
3. how laser waves act in the process of code reading
4. How laser waves act on the code itself? Why does the barcodes are constructed in bars.
5. How is a sinusoidal wave similar to a magnetic laser wave.
2. What are the main components in a laser code reader
3. how laser waves act in the process of code reading
4. How laser waves act on the code itself? Why does the barcodes are constructed in bars.
5. How is a sinusoidal wave similar to a magnetic laser wave.
Question # 1
background information about laser waves and laser code readers, curious facts about them?
- A bar code consists on black and white lines. Data is obtained when the bar code scanner shine a light at a bar code, it captures the reflected light, and replaces the black and white bars with digital shine. The reflections are strong on white areas and weak in black areas. The data is achieved when the code system is known from the digital signal that is obtained
- A bar code consists on black and white lines. Data is obtained when the bar code scanner shine a light at a bar code, it captures the reflected light, and replaces the black and white bars with digital shine. The reflections are strong on white areas and weak in black areas. The data is achieved when the code system is known from the digital signal that is obtained
Question # 2
How laser waves act in the process of code reading?
-The sequence in which the laser is projected in order to read a code is the following. The laser light is actioned to the articulated mirror that articulates in a straight line for about 40 degrees from side to side of the code, the laser is projected between the bars of the code from point A to point B of the code, ultimately the laser photo detector captures the reflection of the laser light based on the bars to read the code properly.
-The sequence in which the laser is projected in order to read a code is the following. The laser light is actioned to the articulated mirror that articulates in a straight line for about 40 degrees from side to side of the code, the laser is projected between the bars of the code from point A to point B of the code, ultimately the laser photo detector captures the reflection of the laser light based on the bars to read the code properly.
Question # 3
How laser waves act in the process of code reading?
-The sequence in which the laser is projected in order to read a code is the following. The laser light is actioned to the articulated mirror that articulates in a straight line for about 40 degrees from side to side of the code, the laser is projected between the bars of the code from point A to point B of the code, ultimately the laser photo detector captures the reflection of the laser light based on the bars to read the code properly.
-The sequence in which the laser is projected in order to read a code is the following. The laser light is actioned to the articulated mirror that articulates in a straight line for about 40 degrees from side to side of the code, the laser is projected between the bars of the code from point A to point B of the code, ultimately the laser photo detector captures the reflection of the laser light based on the bars to read the code properly.
Question # 4
How laser waves act on the code itself? Why does the barcodes are constructed in bars?
The main process of laser waves on a scanner consists of laser light hitting the white and black bars of a code. Data retrieval is achieved when bar code scanners shines laser light at a bar code, the scanner captures the reflected light and replaces the black and white bars with binary digital signals. The reflection of the black and white bars differs in the fact that the reflection of the white bars is much more strong than the black bars (black bars barely have some reflection). A sensor receives the digital signals from reflections to obtain analog waveforms. The analog signal waves are converted into a digital signal via an A/D converter ( example is showed in the stage 3 of the code reading process picture below.
The main process of laser waves on a scanner consists of laser light hitting the white and black bars of a code. Data retrieval is achieved when bar code scanners shines laser light at a bar code, the scanner captures the reflected light and replaces the black and white bars with binary digital signals. The reflection of the black and white bars differs in the fact that the reflection of the white bars is much more strong than the black bars (black bars barely have some reflection). A sensor receives the digital signals from reflections to obtain analog waveforms. The analog signal waves are converted into a digital signal via an A/D converter ( example is showed in the stage 3 of the code reading process picture below.
Question # 5
5. How is a sinusoidal wave similar to a magnetic laser wave.
This two types of waves are similar in one thing, both of them need to pass through a magnetic field, the wave usually moves in right angles to get more power and if they move in right angles they will be abel to get a maximun power, and the wave will be more effective.
This two types of waves are similar in one thing, both of them need to pass through a magnetic field, the wave usually moves in right angles to get more power and if they move in right angles they will be abel to get a maximun power, and the wave will be more effective.