TW200722710A - Full-frequency modulated laser range finding device and method thereof - Google Patents
Full-frequency modulated laser range finding device and method thereofInfo
- Publication number
- TW200722710A TW200722710A TW094144056A TW94144056A TW200722710A TW 200722710 A TW200722710 A TW 200722710A TW 094144056 A TW094144056 A TW 094144056A TW 94144056 A TW94144056 A TW 94144056A TW 200722710 A TW200722710 A TW 200722710A
- Authority
- TW
- Taiwan
- Prior art keywords
- frequency
- signal
- sampling
- modulation
- full
- Prior art date
Links
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Abstract
This invention provides a full-frequency modulated laser range finding device and a method thereof. A quartz oscillator is used to send out a modulation signal and a sampling signal. Frequencies of the modulation signal and the sampling signal are respectively controlled though two frequency dividers or two frequency multipliers. The modulation signal and the optical signal are coupled and transmitted to an object. The object reflects the coupled signal to be received by an optical detector. In an A/D converter, a sampling frequency is used as a standard to perform sampling on the received signal. The sampling result is transmitted to a microprocessor which performs a computation to obtain the distance to the object. Because the inventive device includes less number of components, and the modulation frequency f0 and the sampling frequency fsp are not restricted by the relationship of f0=(n+1/4)fsp, the selection of modulation frequency is more extensive. In addition, because frequencies are generated by the frequency dividers or the frequency multipliers, the system structure is simple and accurate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW94144056A TWI269025B (en) | 2005-12-13 | 2005-12-13 | Full-frequency modulated laser range finding device and method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW94144056A TWI269025B (en) | 2005-12-13 | 2005-12-13 | Full-frequency modulated laser range finding device and method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
TWI269025B TWI269025B (en) | 2006-12-21 |
TW200722710A true TW200722710A (en) | 2007-06-16 |
Family
ID=38291426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW94144056A TWI269025B (en) | 2005-12-13 | 2005-12-13 | Full-frequency modulated laser range finding device and method thereof |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI269025B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI403720B (en) * | 2009-05-11 | 2013-08-01 | Ind Tech Res Inst | Resilience and displacement measuring device and method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI400430B (en) * | 2008-12-22 | 2013-07-01 | Asia Optical Co | A measuring apparatus and control method thereof |
-
2005
- 2005-12-13 TW TW94144056A patent/TWI269025B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI403720B (en) * | 2009-05-11 | 2013-08-01 | Ind Tech Res Inst | Resilience and displacement measuring device and method |
Also Published As
Publication number | Publication date |
---|---|
TWI269025B (en) | 2006-12-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1574832A3 (en) | Optical phase measurement of target | |
CN201130251Y (en) | Electro-optical distance measurement apparatus | |
CN106992818B (en) | Phase program control-based phase generation carrier demodulation device and method | |
ATE435530T1 (en) | METHOD AND DEVICE FOR CODE PHASE TRACKING | |
JP4464416B2 (en) | Lightwave ranging method and ranging device | |
RU2009104047A (en) | CONCEPT FOR COMBINING A SET OF PARAMETRICALLY CODED AUDIO SOURCES | |
EP2770298A3 (en) | Method and system for detecting optical ring resonator resonance frequencies and free spectral range to reduce the number of lasers in a resonator fiber optic gyroscope | |
EP2007038A3 (en) | Phase monitor apparatus, phase control apparatus and method thereof for optical DPSK receiver | |
SG138489A1 (en) | Frequency coherence within a location network | |
DE502005007980D1 (en) | position measuring system | |
JP2011237359A (en) | Device and method for detecting radio wave arrival angle | |
CN101788671B (en) | Multicycle modulation method applied to laser ranging device using chirp amplitude modulation based on heterodyne detection | |
US20190383907A1 (en) | Acceleration-based fast soi processing | |
EP2759803A3 (en) | Rfog with optical heterodyning for optical signal discrimination | |
WO2013067711A1 (en) | Distance measurement method and system | |
WO2003069286A3 (en) | Method and apparatus to measure fiber optic pickup errors in interferometry systems | |
ATE306653T1 (en) | DEVICE AND METHOD FOR MEASURING ULTRA-SHORT LIGHT PULSE | |
US20160088418A1 (en) | Signal control apparatus | |
TW200722710A (en) | Full-frequency modulated laser range finding device and method thereof | |
RU2013155384A (en) | DEVICE, METHOD AND COMPUTER SOFTWARE FOR GENERATING OUTPUT STEREO SIGNAL FOR PROVIDING ADDITIONAL OUTPUT CHANNELS | |
DK1608999T3 (en) | Radar comprising a transmitting oscillator that can be excited by an analyzer oscillator in a quasi-phase coherent manner | |
JPH07151681A (en) | Gas density measuring apparatus | |
KR101684269B1 (en) | Distance measuring apparatus using real time determination of synthetic wavelength based on free running femtosecond laser | |
US10386466B2 (en) | Distance measuring device and distance measuring method | |
US11105926B2 (en) | Phase difference frequency generating method, phase difference frequency generating device and electronic distance meter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |