Triangulatie
Hoe werkt een geodimeter?
joyce
Leerling bovenbouw havo-vwo - maandag 10 maart 2003
Antwoord
Op onderstaande website staat: "The instrument transmits a light beam (wavelength 550 nm), to which is applied a modulation of approximately 30 MHz (10 m), i.e. the light is intensity-modulated. The beam is directed onto a reflector at the distant station, from which it is reflected back to the instrument. The incoming light is received by a photo-multiplier (hence converted to an electrical signal) and the difference in phase between the transmitted and received modulations is measured." ...en dat lijkt me nogal natuurkundig.
Zie Geodimeter Model 6A
maandag 10 maart 2003
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