Abstract: A measuring method and a distance measuring device for determining an absolute distance to a target moving at a radial movement velocity with respect to the distance measuring device, wherein a modulated transmission radiation is emitted to the target and a measurement signal is detected, such that information regarding the absolute distance to the target is attached to the measurement signal by means of at least one reference point of a frequency-dependent signal profile of the measurement signal, on the basis of a modulation phase of the reception radiation with respect to a set fundamental modulation, wherein for a set fundamental modulation frequency the deviation of said frequency value with respect to a reference point, in particular a minimum point, of the signal profile of the measurement signal is derived, namely the frequency offset and the offset direction with respect to the reference point.

Abstract: A measuring method and a distance measuring device for determining an absolute distance to a target moving at a radial movement velocity with respect to the distance measuring device, wherein a modulated transmission radiation is emitted to the target and a measurement signal is detected, such that information regarding the absolute distance to the target is attached to the measurement signal by means of at least one reference point of a frequency-dependent signal profile of the measurement signal, on the basis of a modulation phase of the reception radiation with respect to a set fundamental modulation, wherein for a set fundamental modulation frequency the deviation of said frequency value with respect to a reference point, in particular a minimum point, of the signal profile of the measurement signal is derived, namely the frequency offset and the offset direction with respect to the reference point.

Abstract: With an electrooptical distance meter impulses of light are transmitted over the distance. The distance is found by counting the duration of gating signals which last between transmission and reception of the light impulses. 10,000 times of travel generated by a first digital circuit (16, 17, 18) are communicated to a second digital circuit (1, 19, 20) for storing and processing. The distance is computed by the second circuit (1, 19, 20) by forming a mean value from the more frequent counts. By evaluation of artificial gating signals of various durations and by generation of gating signals from the light impulses by means of various threshold levels an improved accuracy of distance measurement is achieved, even when measuring on natural, non cooperative objects.