Recently, the University of Science and Technology of China implemented the dual-frequency Doppler wind lidar based on superconducting nanowire single-photon detectors for the first time in the world, which significantly improves its practicability and reliability. It can be used in airborne, on-board platforms run.
Wind laser radar has extensive social benefits. For example, accurate atmospheric wind field data can be applied to air pollution traceability and diffusion prediction, aviation weather protection, meteorological climatology, wind power system management and military applications. However, when using shorter laser pulses to improve the range resolution of Doppler Lidar, the coherence efficiency of the traditional coherent Lidar will decrease, and both real-time data acquisition and processing are facing great challenges.
The new dual-frequency Doppler wind lidar, the use of streamlined optical structure, to achieve high stability of the system and improve the practicality and reliability. In the laboratory, the system 10-day repeated measurement error is less than 0.2 m / s. In comparison experiments, the average wind speed and wind direction errors were less than 0.1 m / s and 1 degree, respectively. The radar operates at 1548.1 nm, which allows the human eye with infrared wavelengths to maximize exposure power, optimal atmospheric transmittance, and low sun and sky radiation backgrounds. At the same time photoelectric integrated devices mature, do not need repeated calibration, the module can be installed separately. Therefore, suitable for airborne, shipborne, spaceborne and other large temperature difference, strong vibration platform to run.
Heavy-duty hydraulic sheet metal shears are suitable for compressing and cutting thin & light materials, production and living scrap steel, light metal structural parts, scrap car body, wheel hub, old home alliances, plastic non-ferrous metals(stainless steel, aluminum alloy, copper, etc), or used to compress and bale the above mentioned materials.
The machine is able to:
A) Prepressing and cut scrap
B) Cut bars
C) Packages light scrap
D) Squeeze and cut car bodies
E) We updated the pump to HY type, which has more novel and reasonable structure, with low noise, flow is larger with same motor power.
Aluminum Sheets Shear, Steel Sheets Shear, Iron Sheets Shear, Metal Sheets Shear, Copper Sheets Shear
Jiangyin Metallurgy Hydraulic Machinery Factory , https://www.ecobalingmachine.com