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Night linear measuring benchmarking circuit

2017-03-06 18:45  
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Night linear measuring benchmarking circuit
This benchmarking's night visual range is not less than 500m, with four 2-type batteries, this device can continuously works more than 30 hours, and it can be used in the night linear measurement applications or used as the signal marking equipment. The interval oscillator is composed of the BG4 and L, this interval oscillator changes the 6V DC current into the 200V AC current and turns on the 3W cold cathode fluorescent tube as the night vision benchmarking's light source. The lamp tube can use three colors: red, white and green. BG3 is the switch tube, it is controlled by the oscillator to make the lamp tube produces flash. K2 is the work changing switch, if you need the lamp tube always turns on, you should cut off it.