A stroboscope design for those who'd like to ...

A stroboscope design for those who'd like to assemble it by themselves A stroboscope is a device emitting brief and rapid flashes of light. Modern stroboscopes use gas-discharge flash lamps. Flash lamps used in stroboscopes emit short impulse flashes of high energy light. The frequency of flashes is determined by the control generator. It can be set within the range from 1 to 10 Hz. The stroboscopic effect is based on temporary flash blinding. This is why you should be cautious while using one, especially if you are exposed to bright flashes of light near the device. The do-it-yourself set NF 189 will help you create a stroboscope built with a xenon lamp and producing bright flashes of light. This is a set containing everything necessary to assemble the device on your own. The stroboscope is based on an impulse xenon lamp. It is rather compact and very reliable. Besides it doesn't take long to assemble it on your own. Let's take a look at the design. The generator is built with a transistor, resistors, R1, R2, and R3, a diode, D1, and a transformer. The current runs through the step-up winding of the transformer to the rectifier diode, D2, and the filter, C1. The charge of the capacitor, C2, goes through the resistor, R4. When the charge reaches the value of about 80 Watts the voltage at the diode's cathode, D3, will be equal to 12 Watts. The thyristor will open and the current from the capacitor will run through the transformer to the lamp. As the result the lamp will flash. After that the thyristor is closed and the cycle repeats. The device is built on a compact circuit board. If you want, you can later place it into a small frame. The stroboscope works from a stabilised power supply at voltage of 12 V. The current consumption is no less than 200 milliamperes.

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