In modern information warfare,the testing technology is very important to the development,use and maintenance of the optoelectronic reconnaissance and tracking pointing equipment.The development status of optoelectronic reconnaissance and tracking pointing equipment testing technology at home and broad was discussed from four aspects.At present,the comprehensive digital measurement of visible light and low light level imaging performance parameters has been achieved.The measurement uncertainty of image surface uniformity and distortion calibration performance parameters achieves 1% and 0.2% respectively,the infrared thermal imaging system performance parameters such as minimum resolvable temperature difference(MRTD) have began to be measured by the means of objective evaluation,the maximum range allowable measuring error limit of laser ranging system performance parameters such as maximum range is less than 1%.In addition,the measurement uncertainty of the multi-axis consistency can achieve 2″.Our future research in this field will be focused on the development of a variety of calibration means which run fast and accurately and the promotion of the shimmering,white,infrared and ultraviolet optoelectronic imaging testing technology,as well as establishing and improving appropriate testing standards and securing systems.
The utility model discloses a light evening device that consists of a front receiving board, a light evening cylinder and a rear baffle board, all of which are sealed. With the light evening device, not only the front receiving board and the rear baffle board can play the effect of diffusion, but also the light evening cylinder has a favorable effect of diffusion evening and perfect-reflection evening, so that the energy of the incoming laser beam can be uniformly distributed. The utility model also discloses a laser detector which comprises a sensor and the light evening device; adopting the light evening device, not only the anti-laser-damage capacity of the detector can be improved and the measuring and application range of the detector can be enlarged, but also the detector is not sensitive to the shining point of the incoming laser, thereby greatly improving the uniformity property of the detector, so that the sensor with small photosensitive sensor can be applied to the large diameter high power/energy laser measurement without influencing the measuring precision of the sensor.
A method to measure the pulse laser peak power based on the pulse stretch and peak hold functions is introduced.It can be used to measure the peak power of diode laser directly,with the characteristics of digital display,high accuracy(5 %),large power range(1-200 W),wide pulse(50 ns) width and output port of waveform monitor.