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Electronic Distance Measurement : an Introduction /
Electronic Distance Measurement This text gives an up-to-date introduction into electronic distance measurement (EDM) with a comprehensive review of modern equipment and procedures. It is excellently suited as a text for undergraduate and graduate students and an invaluable reference for practicing...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Berlin, Heidelberg :
Springer Berlin Heidelberg,
1996.
|
| Edición: | 4. |
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- 1 History
- 2 Physical Laws and Units Related to EDM
- 2.1 Definitions
- 2.2 Frequency Spectrum
- 2.3 Velocity of Light in a Vacuum
- 2.4 Units and Their Definitions
- 3 Principles and Applications of EDM
- 3.1 Pulse Method
- 3.2 Phase Difference Method
- 3.3 Doppler Methods
- 3.4 Interferometry
- 4 Basic Working Principles of Electronic Distance Meters
- 4.1 Electro-Optical Instruments
- 4.2 Microwave Instruments
- 5 Propagation of Electromagnetic Waves Through the Atmosphere
- 5.1 Atmospheric Transmittance
- 5.2 Range of EDM Instruments
- 5.3 Phase Refractive Index
- 5.4 Group Refractive Index of Light and NIR Waves for Standard Conditions
- 5.5 Group Refractive Index of Light and NIR Waves at Ambient Conditions
- 5.6 Refractive Index of Microwaves
- 5.7 Coefficient of Refraction
- 5.8 Measurement of Atmospheric Parameters
- 5.9 Determination of the Refractive Index
- 6 Velocity Corrections to Measured Distances
- 6.1 Reference Refractive Index
- 6.2 First Velocity Correction
- 6.3 Real-Time Application of First Velocity Correction by EDM Instrument
- 6.4 Second Velocity Correction
- 6.5 Refined Method of Reduction of Measured Distance to Wave Path Chord
- 7 Geometrical Corrections
- 7.1 Reduction to the Spheroid Using Station Heights
- 7.2 Reduction to the Spheroid, Using Measured Zenith Angles
- 8 Miscellaneous Corrections, Computations and Numerical Examples
- 8.1 Correction of Measured Distance to Zenith Angle Ray Path
- 8.2 Eye-to-Object Corrections for Zenith Angles and Distances
- 8.3 Height Difference from Measured Zenith Angle(s) and Slope Distance
- 8.4 Determination of the Coefficient of Refraction from Reciprocal Zenith Angle Measurements
- 8.5 Reduction to Centre of Distances
- 8.6 Numerical Examples
- 9 Electro-Optical Distance Meters
- 9.1 Classification of Electro-Optical Distance Meters
- 9.2 Design of Some Electro-Optical Distance Meters
- 10 Reflectors
- 10.1 Introduction
- 10.2 Glass Prism Reflectors
- 11 Batteries and Other Power Sources
- 11.1 Review of Power Sources
- 11.2 Batteries Used in EDM
- 11.3 Sealed Nickel-Cadmium Batteries
- 12 Errors of Electro-Optical Distance Meters
- 12.1 Additive Constant
- 12.2 Short Periodic Errors
- 12.3 Scale Errors
- 12.4 Non-Linear Distance-Dependent Errors
- 12.5 Summary and Mathematical Model of Errors
- 13 Calibration of Electro-Optical Distance Meters
- 13.1 Introduction
- 13.2 Calibration on EDM Baselines
- 13.3 Calibration on Cyclic Error Testlines
- 13.4 Calibration of Modulation Frequency
- 13.5 Accuracy Specifications of EDM Instruments
- Appendices
- A. First Velocity Correction for Precise Electro-Optical Distance Measurement
- B. Tables of Saturation Water Vapour Pressures
- C. Parameters of the ICAO Standard Atmosphere
- D. Data of a Selection of Electro-Optical Distance Meters as Required for the Derivation of the First Velocity Correction and for Calibration Purposes
- E. Technical Data of a Selection of Short Range Distance Meters
- F. Technical Data of a Selection of Pulse Distance Meters
- G. Technical Data of a Selection of Long Range Distance Meters
- H. Critical Dimensions of a Selection of Reflectors
- References.