| 摘要 |
An electronic distance measuring apparatus using a laser and supersonic waves is provided to precisely measure a distance pointed by the laser using a resistance value corresponding to a rotational angle of a laser pointer. An electronic distance measuring apparatus using a laser and supersonic waves includes a supersonic wave transmission/reception part, a laser generating part(130), a variable resistor, a voltage booster, an A/D converter, a plurality of buttons(170), a display part(180), a memory, and a controller. The supersonic wave transmission/reception part transmits a supersonic wave according to a control signal and receives the reflected supersonic wave. The laser generating part generates a laser according to a control signal. The variable resistor varies a resistance according to a rotation amount of the laser generating part. The voltage booster boosts a static voltage several times when the static voltage is lower than a predetermined level. The A/D converter converts an analog signal input from the voltage booster into a digital signal. The display part displays the measured distance. The memory stores the distance data.
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