The avalanche photodiode is an internal amplification of the optical sensor

The avalanche photodiode is an internal amplification of the optical sensor.
The advent of the world's first laser in June 1960, the first laser in China in September 1961. From the first laser in 1961, China announced the successful development so far, China has formed a complete range of advanced level, and a wide range of applications of laser science and technology, and industrialization have made gratifying progress, we can say, in the initial stage of development of laser technology rapidly , both in quantity and quality, and international level was close to an innovative technology can so quickly catch up with the world's advanced ranks in the history of modern scientific and technological development in China are rare. These achievements, in particular, to physical vision, technical solutions smoothly into the actual laser devices.
Change the situation, our laser technology over the years the closure operation began to the world. Has set up a number of national key laboratories, open laboratories, national engineering research centers and research organizations. In a number of national strategic technology plan, the laser technology to be taken seriously. "863" Project in seven areas of laser technology and photonics technologies (including laser used in the field of information technology), inertial confinement fusion "theme was added in 1995. Defense Advance Research photonics technology officially approved as a cross-sector projects, including laser technology. National Plan "and" Plan "research program, laser technology has been classified as major projects. The efficient working relationship of  cell phone jammers  is asked for.
Of the laser process can be summarized as follows: incentive → active medium (ie, the working substance) inversion; other particles of the substances are motivated by chance issued the spontaneous radiation → Stimulated emission photon → zoom → photon oscillations and photon amplification → laser to produce. Based on the above, can not be missing a factor in the principle of laser-produced. From the principle of laser formation process is very important for the specific use of the laser scalpel. And may be handy to work to master laser. Can try to maintain a large extent to the laser, and to prevent the harm arising from the use. Laser lasers there are many types, but nothing less than a necessary part of: cavity, the gain medium, pump source.
The solution: increase the delay of the car, the car detected signal to increase the turning time, so that the laser back to the black line area, and continue tracking traffic. 26 based on the intelligent design of the laser detection Smart car control system design conclusions tracking the car, including single-chip module, laser tracking module, the servo drive module, motor driver module. The MCU module the use MC9S12XS128 chip microcontroller module is responsible for sending and receiving instruction, and logical calculations. The laser tracking module uses 16 laser head and seven receiver to take the way of "a"-shaped arrangement, two-row arrangement of two adjacent photoelectric tube interval of 18cm. The laser tracking module is responsible for the road test.