| 摘要 |
FIELD: sports. ^ SUBSTANCE: laser exerciser for training sportsmen relates to sports equipment, in particular to devices for training of swimmers. Exerciser comprises deflecting device arranged in the form of semicircular mirror and electric motor, on axis of which there is a semitransparent mirror arranged, and source of laser radiation is coaxially installed. Semitransparent mirror is installed on axis of electric motor at the angle of 45 relative to axis of electric motor. Semicircular mirror is installed perpendicularly to axis of electric motor so that centre of semitransparent mirror is available in point of beam falling onto semitransparent mirror. Control device sends pulse to laser radiator in those moments of time, when laser beam at the moment of connection will be located under requested angle relative to surface of water. Angle is adjusted by time delay between moments of laser radiation connection. ^ EFFECT: control device gradually varies frequency of laser radiation connection, therefore laser point moves along swimming path according to specified parametres along swimming pool bottom. ^ 3 cl, 3 dwg |
