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BS ISO 6760-2:2024

BS ISO 6760-2:2024

$167.15

Optics and photonics. Test method for temperature coefficient of refractive index of optical glasses – Interferometric method

Published By Publication Date Number of Pages
BSI 2024 36
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Principle
5 Measuring apparatus
5.1 General
11 5.2 Light sources
12 5.3 Thermal chamber
5.4 Flat plates
13 5.5 Interferometer for optical path length change measurement
5.6 Interferometer for expansion measurement
5.7 Detectors
14 5.8 Temperature sensor
5.9 Barometer
6 Measurement specimen
7 Measurement procedure
15 8 Calculation
8.1 Temperature coefficient of absolute refractive index
16 8.2 Linear expansion coefficient of specimen
8.3 Temperature coefficient of relative refractive index
17 9 How to express the temperature coefficient of refractive index
18 10 Test report
19 Annex A (informative) Formula for calculating the refractive index of air
21 Annex B (normative) Calculation of absolute refractive index of specimen at a given temperature using the temperature coefficient of refractive index
25 Annex C (informative) Temperature coefficient of refractive index under continuous temperature change
27 Annex D (informative) Sensor specifications
29 Annex E (informative) How to find the deviation of interference fringes between two temperatures
31 Annex F (normative) Flat plate requirements
33 Annex G (normative) Heating rate and temperature distribution
34 Bibliography

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BS ISO 6760-2:2024
$167.15