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激光转速测量仪与其它非接触式转速测量仪(如普通光源光电转速仪,闪光式转速仪等)相比较,有其独特的优点。激光转速测量仪工作距离可达10米;测量范围从100～100000γpm;测量精度为±2%～0.1%。当工作环境存在干扰光源或背景杂光噪声时,普通光源光电式与闪光式转速仪就难以正常工作,而激光转速仪则不受此影响。甚至旋转目标在振动或迴转进动时,如风扇在摇头时也能正常测量转速。由于激光器是一种具有高亮度、低发散角和单色性好的光源,因此可以用来测量玻璃罩内的马达转速,各种风洞里面吹风模型的转速,甚至有可能测量正在水中旋转的螺旋桨的转速。在激光转速测量仪中,还利用了定向反射材料定向返回的特性,采用发射、接收系统合二为
Laser speed measuring instrument and other non-contact speed measuring instrument (such as ordinary light source tachometer, flash tachometer, etc.) compared to its unique advantages. Laser speed measuring instrument working distance up to 10 meters; measuring range from 100 ~ 100000γpm; measurement accuracy of ± 2% to 0.1%. When the working environment has interference light source or background noise, normal light source photoelectric and flash speed gauge difficult to work properly, but the laser speed gauge is not affected by this. Even rotating targets can vibrate or slew precession, such as the fan can shake when the normal measurement of speed. Because the laser is a light source with high brightness, low divergence angle and good monochromaticity, it can be used to measure the speed of the motor in the cover glass, the speed of the blowing model in the various wind tunnels, and possibly even measure the amount of light Propeller speed. In the laser speed measuring instrument, but also the use of directional reflective material directional return characteristics, the use of transmitting and receiving systems combined