Stroboscope course Mistakes 

1 flashing strobe frequency is too low: greater or lower due to the printing pattern printing speed, slow movement pattern, this time using a stroboscope inappropriate. When the stroboscope frequency 500 beats / min or less flicker, when viewing patterns, the eyes will feel very dazzling, as if unable to see the relatively static printed pattern. In this case, is not in itself a problem stroboscope, but the human eye is difficult to clearly distinguish the instant flash pattern reflected to the human eye. Direct observation of the human eye for printing patterns of the occasion, require a frequency of 500 beats / min or more. 

2 stroboscope flashing frequency is too high: Xenon lamps have a certain life span of their life in order to represent the number of flashes. When the frequency of the use of excessive flicker, strobe lamp usage time will be shortened. Under normal circumstances, there is a problem when the print pattern, the pattern does not occur only a single bad, but there will be a continuous batch (multiple) patterns are a problem. Therefore, the surface quality of the product in the examination does not need to be tested individually for each printed pattern, can reduce the frequency of use at this time, the frequency is set at 1 / n times the frequency of the pattern of movement, so that patterns can be relatively stationary, it is recommended to select a frequency in 2000f / m-4000f / m or so, which is to ensure a clear pattern of the observed effect, while extending the stroboscope lamp life.

3 strobe flash brightness problem: the maximum power strobe tube is fixed, its brightness with a single flash frequency is inversely proportional. In the high-frequency flash, the brightness would surely be the low-frequency time low. In actual use, not the flash brightness as high as possible, reflecting strong for print material, you need to lower the brightness and soft lighting, and for different users, the brightness of the lights is also inconsistent requirements