Power Supply Voltage Ripple Effect on the Imaging in Laser Monitor

The paper presents the research results of the influence of power supply voltage ripple on imaging parameters in the laser monitor. The decreasing in power supply voltage ripple is shown to lead to decreasing in the fluctuation of the image brightness and the laser monitor field of view. The average values of the gas discharge tube voltage and the radiation pulse amplitudes were determined. The deviations of each pulse amplitude from these values were determined as a percentage. The gas discharge tube excitation pulse ripple without voltage stabilization and with voltage stabilization was 5% and 1% respectively. The radiation pulse ripple was 10% and 2% similarly. Pixel brightness distributions in the chosen image region are presented. The level of image brightness fluctuation without voltage stabilization and with voltage stabilization are also shown. The jitter of the radiation pulses was estimated. The maximal jitter of the radiation pulses was 5.2 ns without voltage stabilization. The minimal jitter of the radiation pulses was 3.6 ns with voltage stabilization.