Hand-held pulse laser distance measuring device
US7548829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2005 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hand-held pulse laser distance measuring device (1) with an algorithm (3) which controls a microcontroller (2) and which serves to calculate the distance (X) to a measurement object (4) by a time difference (τ) between a measurement pulse (6) and a reference pulse (7) and with a superimposition module (5) which calculates the time difference (τ) of a plurality of repeated pulse trains which are periodically superimposed with a trigger frequency fTRIGGER, wherein the trigger frequency fTRIGGER lies in the frequency range ofat an interference frequency fINT=100 Hz . . . 120 Hz; and a measuring method for the pulse laser distance measuring device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.