handy and portable device for determining distances to the ultraschallimpulslaufzeitmessprinzip

摘要

apparatus and procedure for the purpose of auffindens (positioning) of the position of any point in space and for determining distances on the basis of the laufzeitmessung continuously diffuse signals of electromagnetic or acoustic nature,but as both the reflex of the signal as a signal caused by frequenzumgesetztes kunstsignal and can be used for evaluation. the invention describes various related schaltungsdetails.