Handheld laser distance measuring device, with a pulse the rear of the mixing process

摘要

A handheld laser distance measuring device (1) and a pulse of the rear of the mixing process with a a microcontroller (2) controlling algorithm (3) for calculating the distance (x) to a measurement object (4) via at least two different, each with a pulse repetition frequency (f₁, f₂) measured time differences (t₁, T₂) between a measuring signal (6) and a reference pulse (7) with a pulse duration (δt), wherein a selection module (5) is provided, which at least the first pulse repetition frequency (f₁) in such a manner from at least a first frequency amount ({f}₁) with at least a further pulse repetition frequency (f_1i) selects in that the amount of the to the period (1 / f₁) related relative time difference between the reference pulse (7) and the measuring signal (6) is greater than a lower barrier (a), the at least is greater than twice the to the period (1 / f₁) related relative pulse width