![]() ![]() If single-phase supply is only available, then the connection of two adjacent lamps is made such that the two lamps are connected in parallel with the supply. This ensures that all the three lamps do not flicker due to the zero-crossing at the same time due to 1200 phase angle between the three phases. Fluorescent lamps are installed around the rotating or moving machinery, three lamps powered by three different phases should be used. If the industry is supplied with a three-phase supply, the three lamps are feed with a different phases, so that the zero instants of the three lamps will not be the same. Stroboscopic effect caused by flickering of fluorescent lamp, this is harmful to the vision, causing discomfort, visual fatigue and headache.Ĭreating the healthy environment by eliminating stroboscopic effect by reducing the flickering of fluorescent lamp is to be achieved. These are some examples where the stroboscopic effect in the florescent lamps can prove to be dangerous. Ī sewing machine whose needle moves up and down may appear to be stationary and the operator can prick the fingers. This can result in accidents and highly dangerous. Say a flywheel under the illumination of fluorescent light, the flywheel may appear to be stationary or to be operating at reduced speed. ![]() Stroboscopic effect causes accidents to a worker in a factory while operating with running machine. These effects can be minimized by two methods. With the achievement of technological aspect, the present inventions are relative to stroboscopic effects. When the frequency of the moving machine coincides with the multiple of frequency of the light modulation can potentially cause harmful situation to workers. Stroboscopic effect can alter human visual perceptions of the moving object will appear stationary or moving in different speeds. Stroboscopic effect can alter human perception of the surrounding environment hazardous condition may arise due to the presence of stroboscopic effect, which can increase the occurrence of potential accidents. It is possible that this may, in some instance, give rise to stroboscopic effect that is moving object such as rotating parts of machinery, illuminated by this light, may appear to be rotating more slowly than their actual speed. Although effect is seldom noticeable in normal conditions. The stroboscopic effect is a visual phenomenon caused by aliasing that occurs when continuous rotational or other cyclic motion is represented by a series of short or instantaneous samples (as opposed to a continuous view) at a sampling rate close to the period of the motion.Īt the usual alternating current supply frequency of 50 Hz, A discharge will be extinguished 100 times per sec. ![]()
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