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BS ISO 17123-9:2018

BS ISO 17123-9:2018

$198.66

Optics and optical instruments. Field procedures for testing geodetic and surveying instruments – Terrestrial laser scanners

Published By Publication Date Number of Pages
BSI 2018 52
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This document specifies field procedures for determining and evaluating the precision (repeatability) of terrestrial laser scanners and their ancillary equipment when used in building, civil engineering and surveying measurements. Primarily, these tests are intended to be field verifications of the suitability of a particular instrument for the immediate task at hand, and to satisfy the requirements of other standards. They are not proposed as tests for acceptance or performance evaluations that are more comprehensive in nature.

This document can be thought of as one of the first steps in the process of evaluating the uncertainty of measurements (more specifically of measurands).

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols and subscripts
4.1 Symbols
11 4.2 Subscripts
5 Requirements and recommendations
12 6 Test principle
6.1 General
6.2 Procedure 1: Simplified test procedure
6.3 Procedure 2: Full test procedure
13 7 Simplified test procedure
7.1 Configuration of the test field
15 7.2 Example 1: Target scan by full dome scan
17 7.3 Example 2: Two face target scan
7.4 Measurements
7.5 Calculation
20 7.6 Derivation of a reference quantity for computing permitted deviations
7.6.1 Introduction
7.6.2 Determination of measurement uncertainty of the target centers
21 7.6.3 Derivation of the permitted deviation for the simple test procedure
7.7 Quantification of measurement deviations and judgement of the instrument for the simple test procedure
7.7.1 Analysis of distance measurements
22 7.7.2 Remarks on the scale problem
7.7.3 Analysis of further distance differences
24 8 Full test procedure
8.1 Configuration of the test field
25 8.2 Measurements
26 8.3 Calculation
29 8.4 Statistical tests
8.4.1 General description
30 8.4.2 Question a)
8.4.3 Question b)
31 8.5 Derivation of a reference quantity for computing permitted deviation
8.5.1 Determination of measurement uncertainty of the target centre
8.5.2 Derivation of the permitted deviation for the full test procedure
32 8.6 Quantification of measurement deviations and judgement of the instrument for the full test procedure
34 Annex A (informative) Example for the simplified test procedure
36 Annex B (informative) Example for the full test procedure
44 Annex C (normative) Example for the calculation of an uncertainty budget of Type B
51 Bibliography

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BS ISO 17123-9:2018
$198.66