频闪仪是指控制光源发光，以特定频率快速闪动的光学测量仪器。美国Checkline QB-LED频闪仪本身可以发出短暂又频密的闪光,当调节频闪灯的闪动频率,使其与被测物的转动或运动速度接近或同步时,被测物虽然高速运动着,但看上去却是缓慢运动或相对静止,这种视觉暂留现象使人目测就能轻易观测到高速运动物体的表面质量与运行状况 ,而频闪仪的闪光速度即为被检测物体(例如:马达 )转速和运动频率 (印刷袋 ) ,亦可以利用频闪仪分析物体振动情况、 高速移动物体的动作以及高速摄影等。利用频闪仪观测检验技术在欧美已广泛使用 ,随着我国经济的高速发展,越来越多的行业开始使用频闪仪来帮助解决产品质量检验问题。

Check-Line QB-LED频闪仪也叫频闪静像仪或转速计 ,是能够使作振动、 高速旋转或周期运动构件变成“ 静止不动 ” 构件的一种光学测量装置。

Flash range of 30 - 300,000 fpm (0.5-5000 Hz)

闪光范围：30-300000FPM（0.5-500Hz）

The Check-Line QB-LED is a hand-held, battery-powered stroboscope featuring forty (40) extremely bright LEDs for the highest light output in its class. Designed for machinery observation, visual inspection and motion analysis, its robust design is suitable for use in the toughest industrial environments.

美国Checkline的QB-LED手持式频闪仪集成了40颗高亮度输出的LED灯，在同级别中性能优异。QB-LED是靠电池供电，为机械观测，肉眼检测和运动分析而设计，外壳坚硬，适应于苛刻的工业使用环境。

The QB-LED features a robust aluminum housing fitted with forty long-life, high performance LEDs providing a peak brightness of 5000 Lux and convenient adjustment of flash duration to easily select the optimal balance of brightness and image sharpness. A built-in Lithium Ion battery provides up to seven hours of continuous use on a single charge. It is supplied with a universal battery charger (100-240VAC) with USA, Euro and UK plug adapters.

QB-LED的外壳材质为铝，装载着40颗寿命长，性能好的LED灯，其亮度达5000 Lux，并且方便对持续闪光时间进行调整，轻松选择平衡亮度和图像清晰度。内置的锂离子电池，充电一次可不间断使用7小时，还提供通用充电器（100-240VAC），有美标，欧标和英标可供选择。

The strobe is extremely easy-to-use, as functions such as flash rate and brightness adjustments are separated from the special functions that are found a separate menu. The special functions include phase shift, internal/external trigger selection, flash delay, divider and "Slow Motion" mode. "Slow Motion" Mode allows the user to offset the flash rate to put the "frozen" image into virtual "slow-motion".

QB-LED频闪仪操作非常简单，用户可以在菜单上寻找特殊键，直接闪光频率和亮度进行调整。这些特殊按键分别控制相移，内外触发器选择，闪光延迟，分配器和慢动作模式。

The QB-LED uses the "strobe effect" whereby when the flash rate is equal to the rotational speed, the target will appear "frozen". Typical applications include: motion and vibration analysis, balancing of rotating shafts, fans, cams, high speed motion analysis of speakers or ink-jet printing and more. Ideal for use in the textile, paper making, sheet metal production, automotive and printing industries.

QB-LED运用了闪光效应，当闪光频率等同于旋转速度时，被测物呈现出冻结状态。经典应用有：运动与振动分析，转轴平衡，风扇，相机，扬声器和喷墨式打印机的高速移动分析。是纺织行业，造纸行业，钣金生产加工，汽车和印刷行业的理想之选。