One measurement in the process can provide complete process measurement and analysis. The beam is led to the analysis system, which usually consists of a power measurement system, a beam profile analysis system and a time pulse shape measurement system. All these work together to perform the entire analysis. However, the disadvantage of this method is that to set up and perform the analysis, the technician must stop the Laser pointer from production.
The film structure of OPV makes it unable to withstand high currents, which means that all batteries along the roll must be connected in series. This configuration provides much higher voltage than a typical silicon module (for a 0.305×100 m roll, the voltage is about 10 kV), and is much less sensitive to the performance of a single cell than silicon analogs. Krebs, Espinosa, Hösel, Søndergaard, and Jørgensen (2013) further promoted the use of uncut OPV rollers and built a 1,000 square meter solar park. The solar park is connected to the grid and consists of four inclined wooden platforms (100 m long and 2.5 m high) that can be installed with six rows of one-foot-wide aluminum foil (see Figure 7.23). The laser engraver cells used are based on the previously described infinite process (Sommer-Larsen et al., 2013). Up to now, an unlimited stretch of 1.5-2.2 km has been prepared, which constitutes more than 300,000 single cells connected in series. For efficient use, these rolls only need to be cut once and then placed on the platform. Krebs et al. A simple process has been developed to simultaneously install and remove foils at speeds exceeding 100 m/min. At this rate of current technology, more than 200 Wpeak can be installed per minute, far exceeding the rate of other solar cell technologies.
This arrangement can detect changes in the focus position, which in turn can change the system optical system when the optical system is heated by the beam. For example, in AM, the focus position will move a few millimeters over time, thereby changing the influence of the beam on the metal powder. By measuring this offset in real time, technicians can correct for thermal offset before damage is complete.
Although not as mature as OPV in R2R development, OLEDs still exist in many commercial products. blue laser pointer was the first commercial product to use OLED, and now there are many colors to choose from. OLED has also been used in displays in MP3 players, digital cameras, smart phones and TVs. However, it is reported that none of these OLED devices have been prepared by R2R treatment.