FIELD: physics.
SUBSTANCE: sonar is used for range finding. After sonar staff touches measured point, acoustic pulses are generated in turns by two radiators arranged in staff and spaced apart. Said pulses, on reaching acoustic radiation receiver, start processing and determining time interval between acoustic pulse generation and pulse action of receiver mikes. Obtained data are transmitted to computer for it to determine coordinates of measured point. Note here that, for each measured point, distance between radiators is measured with the help of said sonar and, thereafter, sound velocity is corrected for correction to be incorporated with formulas for determining coordinates of said point.
EFFECT: higher accuracy and reliability.
1 dwg
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