Title:
距離測定のための方法および装置
Document Type and Number:
Japanese Patent JP2004507742
Kind Code:
A
Abstract:
The invention relates to a method for measuring distances, based on the phase measurement of an optical measuring beam that is reflected or scattered by an object, on which the beam is sighted. According to said method, the measurement object is exposed to an optical measuring beam of modulated intensity emitted by a measuring device and is converted into electrical measurement signals. The signals are then compared with a reference signal that is generated from the detection and conversion of a portion of measuring light that has been guided on a known reference trajectory, in order to determine the distance between the measuring device and the measurement objet, based on the phase difference that has been determined. The emitted measuring beam is modulated in bursts and the measurement signal of the receiver is only evaluated during the active burst period. The invention also relates to devices for carrying out said method.
Inventors:
Giga, kurt
Application Number:
JP2002522001A
Publication Date:
March 11, 2004
Filing Date:
August 10, 2001
Export Citation:
Assignee:
Giga, kurt
International Classes:
G01S7/48; G01S7/4915; G01S17/36; G01S7/484; G01S7/491; (IPC1-7): G01S17/36; G01S7/48
Domestic Patent References:
| JP2000505901A | 2000-05-16 | |||
| JPH0213878A | 1990-01-18 | |||
| JPH1020036A | 1998-01-23 | |||
| JPS61218979A | 1986-09-29 | |||
| JP2000505901A | 2000-05-16 |
Foreign References:
| US5889490A | 1999-03-30 |
Attorney, Agent or Firm:
Masaki Yamakawa