Cd players , laser printers and speeding guns used by the police are all related to laser 它的应用十分广泛光碟机、镭射打印机和警方用来侦测车速的仪器都与激光有关。
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This instrument is independent of various principles of speed detection and can calibrate radar speed gun on - line 该装置与具体测速原理无关，能够实现对多种雷达测速仪的实时在线检定。
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Aiming at the calibration of traffic radar , this paper analyzed shortcomings of conventional calibration method which be used in radar speed gun calibration regulations ( jjg528 - 2004 ) and put forward two new methods to verify it and developed speed standard instrument 摘要针对公路交通中雷达测速仪的检定问题，分析了《雷达测速仪检定规程》 ( jjg528 - 2004 )中规定的检定方法的不足之处，提出了两种新的雷达测速仪检定方案测试数据记录比对法和测试数据实时比对法，并研制了相应的速度标准装置（测速误差0 . 5 % ） 。
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