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BS EN IEC 61757-7-3:2024

BS EN IEC 61757-7-3:2024

$189.07

Fibre optic sensors – Voltage measurement. Polarimetric method

Published By Publication Date Number of Pages
BSI 2024 48
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IEC 61757-7-3:2024 defines the terminology, structure, and performance characteristics of fibre optic voltage sensors using a polarimetric measurement method. The document specifies test methods and procedures for measuring key performance parameters of these sensors. It addresses only the voltage sensing element and not the additional devices that are unique to each application. The document does not specify the required performance values of optical polarimetric fibre optic voltage sensors, because these specifications depend on the designated application of the sensor and are typically defined by the user of the sensor. The required performance values are usually defined when designing a sensor for a specific application.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
6 English
CONTENTS
8 FOREWORD
10 INTRODUCTION
11 1 Scope
2 Normative references
3 Terms and definitions
13 4 Components of optical voltage sensor using polarimetric method
4.1 General description
14 4.2 Classification of Pockels cells
Figures
Figure 1 – Measurement system using optical voltage sensor
15 5 Characteristic tests
5.1 General information
5.2 Input-to-output characteristics
5.2.1 General
Tables
Table 1 – List of parameters to be obtained
16 5.2.2 Test methods
Figure 2 – I/O characteristics of a fibre optic voltage sensor
17 Figure 3 – Measurement setup for the waveform comparison method
Table 2 – Test methods
18 5.2.3 Test procedure
Figure 4 – Measurement setup for the AC bridge method
20 5.2.4 Evaluation
21 5.3 Warm-up time
5.3.1 General
5.3.2 Test method
5.3.3 Evaluation
5.4 Voltage conditions for obtaining characteristic parameters
22 5.5 Input parameter dependency
5.5.1 Frequency characteristics
Table 3 – Voltage conditions for obtaining characteristic parameters
23 5.5.2 Transient characteristics
24 Figure 5 – Transient characteristics of sensors for AC measurements
25 5.6 External environment dependency
5.6.1 Test of the steady state temperature characteristics
Figure 6 – Transient characteristics of sensors for AC/DC measurements
26 Figure 7 – Configuration example for evaluating the steady temperatureand transient temperature characteristics of the sensor part
27 5.6.2 Test of the transient temperature characteristics
Figure 8 – Example of a temperature profile
28 Figure 9 – Birefringence change during temperature change
29 Figure 10 – Example of temperature program
30 5.6.3 Shock and vibration test
31 Annex A (informative)Principle of optical voltage sensor
A.1 Outline
A.2 Pockels effect
32 Figure A.1 – Pockels effect
33 A.3 Voltage detection method
A.3.1 General
Figure A.2 – Configuration of a voltage detection system using the Pockels effect
Table A.1 – Direction of electric field with sensitivity
34 A.3.2 Examples of voltage detection method
Figure A.3 – Basic configuration of an optical voltage sensorusing the intensity modulation method
35 Figure A.4 – Basic configuration of an opticalvoltage sensor using the interferometric method
36 Annex B (informative)Features of optical voltage sensor technology
37 Annex C (informative)Design considerations
C.1 General information
C.2 Performance restricting factors
38 C.3 Procedure for determining the specifications of the equipment
40 Annex D (informative)Measurement parameter performance table
D.1 General
D.2 I/O characteristics
Table D.1 – I/O characteristics
41 D.3 Frequency characteristics
Table D.2 – Frequency characteristics
42 D.4 Transient characteristics
Figure D.1 – Example of the transient characteristic
43 D.5 Steady state temperature characteristics
Figure D.2 – Example of the temperature characteristics at voltage 0
Figure D.3 – Example of the temperature characteristics at rated voltage
44 D.6 Transient temperature characteristics
Figure D.4 – Example of the transient temperature characteristics at input voltage 0
Figure D.5 – Example of the transient temperature characteristics at rated voltage
45 D.7 Shock test
Figure D.6 – Example of the shock test at voltage 0
Figure D.7 – Example of the shock test at rated voltage
46 Bibliography

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BS EN IEC 61757-7-3:2024
$189.07