- By lasernzh
- On 27/11/2018
Recently, the city of Minsk, Belarus, has experienced heavy fog and a large number of flights have been cancelled or delayed. The crew of a Belarusian airline flight, with almost zero visibility, chose to risk the autopilot landing system, so that the aircraft eventually landed safely. At that time, from the perspective of the pilot's cockpit, there was only a white curtain outside the window. The crew risked to believe in the automatic driving landing system. First, the situation was urgent. Second, the aircraft itself believed that the aircraft itself had good safety performance. In order to improve the quality of aircraft, modern scientists have been committed to introducing advanced manufacturing processes into aircraft manufacturing.
Laser cutting technology is one of them, waterproof laser pointer cutting technology has the characteristics of high efficiency, low energy consumption, short process, good performance, digitization and intelligence in the aerospace field. Laser cutting materials in the aerospace industry are titanium alloys, nickel alloys, chromium alloys, aluminum alloys, tantalum oxide, stainless steel, molybdenum titanate, plastics and composites. Laser cutting can be used to process aircraft skins, honeycomb structures, frames, wing bins, tail siding, helicopter main rotors, engine casings and flame tubes. Laser cutting generally uses continuous output laser YAG and CO2 lasers, as well as high-repetition CO2 pulsed lasers.
The distance between the cutting head and the workpiece and the perpendicularity of the nozzle to the surface of the workpiece during the cutting process are two extremely important factors. Directly affect the quality of the processing, so in order to improve the quality of cutting and reduce the production of waste, special sensors need to be installed on the cutting head to ensure stable and consistent cutting quality and increase process safety.
When the usb laser pointer cutting head changes the shape of the workpiece and the surface is uneven, the sensor automatically detects the change and automatically adjusts the height according to the change, so that the distance from the surface of the workpiece is always consistent, the material can be processed faster without continuously monitoring the present. The displacement sensor adopted at home and abroad is basically a capacitive type, and its structure and shape are adapted to the processing head, and is equipped with a detection signal processing unit.
Displacement measurement is one of the most basic measurement tasks. According to whether the sensor is in contact with the workpiece to be tested, the displacement sensor can be divided into contact type and non-contact type. Compared with the contact sensor, the non-contact sensor guarantees high resolution. At the same time, it has a fast dynamic response, low hysteresis error, and even zero.
Non-contact sensors, sometimes called proximity sensors, the earliest application is a proximity switch, that is, when the detected object approaches a sensitive distance to a sensitive probe, a switching signal is given. The current proximity sensor has been developed to detect not only objects. With or without, it gives the distance of the object from the sensitive probe and provides information about the shape and spatial position of the workpiece.
Because military laser pointer can be used to measure the displacement of moving objects, this kind of sensor is also called non-contact displacement sensor. Commonly used displacement sensors include hysteresis telescopic displacement sensor, eddy current displacement sensor, capacitive displacement sensor, inductor displacement sensor and so on.
According to the principle of various sensors, the capacitance sensor has high sensitivity and has the following characteristics: good dynamic response, because the electrostatic attraction between the plates is small, the required energy is very small, and the movable part can be made very small and thin. Therefore, its natural frequency is very high, its dynamic response time is short, and it can work at frequencies of several megahertz, which is especially suitable for dynamic measurement.
The utility model has the advantages of simple structure, strong adaptability, easy manufacture, easy to ensure high precision, and can be made into a small-sized sensor to realize special measurement, and can work in a harsh environment such as high and low temperature, strong radiation and strong magnetic field, and can withstand high pressure and high. Shock, overload, etc. The 488nm laser pointer is small and the temperature coefficient is small. Since the capacitance value of the capacitance sensor is independent of the electrode material, a material with a low temperature coefficient can be selected, and a good stability can be ensured when the external temperature is stable. The larger relative change is limited only by the linear region, and its value can reach 100% or more, which can guarantee the resolution and measurement range of the sensor.
- By lasernzh
- On 02/09/2016
As America's strategic defense began to turn into space, Russia must develop its space industry in response to the challenges of the United States. December 2014, the Russian government passed the 2013 to 2020 the Russian space program draft, plans to build the world's leading aerospace power in 8 years time. In recent years, Russia increases its military expenditure for the development of a new burning laser weapons.
It can be considered that the current Russian air based laser weapon system will be more mature. At present, the Western powers have extended their military reach into space, and Russia's laser weapon system will be used as a weapon against these country's space weapons and equipment. The Russian military laser weapon can destroy the enemy satellite, and the ground-based laser weapon system will be used in actual combat.
Russia and the United States have a long time competition in the field of high powered laser , the Russian "Tatiana" satellite of the sudden suspension of work, it was considered to be related to the United States laser weapons. Since the collapse of the Soviet Union, Russia's comprehensive national strength weakened greatly, however, the peripheral security environment has become increasingly complex, especially the eastward expansion of NATO, the United States continue to plan for the deployment of anti missile system in Eastern Europe, Russian strategic space and deterrence strength suffered a huge threat. In this case, Russia can only rely on more strategic nuclear forces.
Strong Nuclear Laser Weapon
There is a strong Russian nuclear deterrent, make NATO crisis in Ukraine several times in the conflict to direct military confrontation with the russian. In view of this "thorn in the eye", the United States led by the western countries try their best to weaken Russia's nuclear deterrent capability. With the increasing maturity of military space technology, western countries have put the 200mw Laser Pointer into space. The current U.S. reconnaissance satellites can detect any corner of the territory of Russia, and with the accelerated construction of anti missile network, according to Russia's strategic nuclear missile detection sensitivity and response speed increasing, which effectively inhibits the advantages of mobility of land-based nuclear power in russia.
Once there is a huge imbalance in the space and military forces, it is bound to break the balance of the global strategy, a huge threat will come out to the security of russia. So, the development of 100mw Laser Pointer weapon system in outer space will be a success strategy.
- By lasernzh
- On 16/08/2016
At the same time, the United States is still developing ground-based burning laser weapons for anti satellite test. 1997, the U.S. military hit a laser beam successfully for the first time with the mid infrared advanced chemical laser which emitted by the United States Air Force Meteorological satellite. Since then, the United States has repeatedly conducted a similar test. On March 7, 2007, Russia tower season Maria satellite suddenly stop working, Russian space experts doubt, it is damaged by the US at the time of the laser test .
Laser weapon to protect small target
In addition to the heavyweight strategic objectives, the United States has developed a variety of relatively small high energy 30000mw Laser weapons for air defense, base defense and even anti roadside bombs. In air defense and base defense operations, in order to shoot down the aircraft, missiles and shells, the defense side often have to use a more expensive missiles to intercept. And the energy as a "ammunition" of the laser weapon is no such problem. Raytheon developed the solid laser in 2006 and had shoot down incoming 60 mm shells successfully, the United States and Israel jointly developed the mobile theater high energy laser weapon repeatedly in the trial shot down "card Katyusha rocket. In addition, the U.S. Navy worried that terrorists use small vessels to launch attacks on warships. To this end, the company also specializes the ship borne laser weapon, and demonstrates how to use it to attack small vessels.
In recent years, the American war, repeatedly condemned because of harming civilians. The Pentagon believes that the high accuracy of the 200mw Green Laser weapon is expected to allow the United States to get rid of this dilemma. America experts Jeremy Singh said that the NATO air strikes on television Belgrade in 1999, the missile explosion caused 16 people died, but if used laser weapons, it would destroy precise antenna and transmitting equipment to make television paralysis without causing any casualties. Even against tanks so heavily armored targets, tactical laser weapons can also destroy its antennas and other communications and observation system, let the tank becomes "deaf" or "blind". In 2009, Boeing took advantage of a C-130H aircraft carrying high energy chemical lasers to destroy the engine of a ground car to make it break down. Boeing says such an attack would not damage the personnel in the vehicle.
Laser weapons will not be absolutely invincible
Liu Jiangping said that any advanced weapons have their own limitations, although 50mw Laser weapons have a variety of advantages, it will not be absolutely invincible. Because the laser propagation will be affected by the atmospheric disturbance, clouds and other weather conditions, also equipped with laser weapons satellites, aircraft and ship is not perfect, such as aircraft are vulnerable to attack, after these carrying platform are destroyed, laser weapons also cannot play a role. In addition, the existing laser weapons can not work long hours, several times after the launch of a continuous need to re-add energy or cooling, which provides an opportunity for the opponent to attack.
- By lasernzh
- On 04/08/2016
Routh was born
In 2010, the U. S. Navy Surface Warfare Research Center and Cottus company signed a contract worth $11 million, for the development of the solid fiber burning laser weapon system. Cottus company put forward the technical route before various studies funded by the U. S. Navy.
The laser can produce beam source, current laser divided into several major categories of solid state laser device, liquid laser, gas laser, free electron laser. Routh uses the simplest and most inexpensive and reliable fiber laser
There is a strong Russian laser weapon. In view of this laser weapon , the western countries try their best to weaken Russia's nuclear deterrent capability. With the increasing maturity of military space technology, western countries have put the military 100mw Laser Pointer into space. Currently, U.S. spy satellites can detect any corner of the territory of Russia, and with anti missile network construction accelerated,Russia's strategic nuclear missile detection sensitivity and response speed continues to increase, which effectively inhibits the advantage of Russian mobile land-based nuclear power.
Optical fiber laser
In 1988, Shinizi invented the double cladding layer 5000mw Laser laser, this fiber laser has the advantages of small volume, high energy conversion efficiency,(up to 70%) The biggest advantage is that it doesn't need a cooling system.Cottus company using six 5 kW fiber laser, total output power comes to 32 kW, this fiber laser has the advantages of small volume.During 1987 to 1988, the United States Navy conduct a series of shooting test at White Sands test field.They destroyed a supersonic anti-ship missile successfully. At the age of 2000, the United States Navy has developed the "target -1" and "target -2" carrier lasers.
With low energy laser to achieve stable tracking, and then launch high energy laser, about 2 seconds to achieve the time to shoot down.Routh laser short-range defense system has entered the mature stage of developmentThe free electron laser weapon developed by the United States Navy is more complicated, but the prospect is more extensive.
During 1987 to 1988, the United States Navy conduct a series of shooting test at White Sands test field with the world's most powerful laser pointer .They destroyed a supersonic anti-ship missile successfully with a powerful laser weapon . At the age of 2000, the United States Navy has developed the "target -1" and "target -2" carrier lasers.
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