| 摘要 |
<p>PURPOSE:To transmit information with sounds and light without an influence of wind by oscillating an arc flame to generate an audible acoustic wave and supplying reproduced sounds to an information means and mixing a light color reacting agent in surrounding gas to emit the flame color light. CONSTITUTION:A copper arc nozzle 5 having an arc flame jet nozzle 4 and a tungsten electrode 6 arranged on the axial line of the nozzle 5 are electrically insulated and are connected and fixed, and inert gas 10a is supplied into the arc nozzle 5, and surrounding gas 12a is supplied to a gas nozzle 9 on the outside of the nozzle 5. Since this arc flame torch 1 is used to generate an arc flame 16, information transmission dependent upon sounds and light is maintained without an influence of wind. The arc flame 16 large pulsates by a control signal of sounds or the like and the frequency characteristic of the audible acoustic wave is improved by surrounding gas 12a, and a flame color reacting agent is mixed in the gas 12a to enjoy the change of color light.</p> |
