BS 6647:1985
Current
The latest, up-to-date edition.
Guide to oscilloscopes and peak voltmeters for impulse tests
Hardcopy , PDF
English
31-10-1985
National foreword
Committees responsible
Section one - General
1 Scope
2 Object
3 Conditions of use
3.1 Range of operating conditions
3.2 Reference conditions
4 General definitions
4.1 Transfer characteristic
4.2 Scale factor
4.3 Deflection coefficients
4.4 Nominal values of the deflection coefficients
4.5 Non-linearity
4.6 Instability
4.7 Measuring area or scale
4.8 Rated deflection or rated scale
4.9 Effective screen areas or effective scale
4.10 Warm-up time
4.11 Absolute and relative error
4.12 Individual error and overall error
5 Performance characteristics
6 Input characteristics
Section two - Oscilloscopes for impulse tests
7 General
7.1 Writing speed
7.2 Step response and rise time
7.3 Oscilloscope frequency response
8 Accuracy requirements
8.1 General
8.2 Requirements on transfer characteristics
8.3 Requirements on the accuracy of the calibration
8.4 Requirements on linearity
8.5 Requirements on stability
8.6 Requirements on ripple
8.7 Requirements on the accuracy of the reading
process
8.8 Limits on interference
9 Record of performance
10 Recommended procedure for oscilloscope
measurements
Section three - Peak voltmeters for impulse tests
11 General
12 Accuracy requirements
12.1 General
12.2 Requirements on transfer characteristics
12.3 Requirements on accuracy of the calibrators
12.4 Requirements on linearity
12.5 Requirements on stability
12.6 Requirements on storage time
12.7 Limits on interference
13 Record of performance
14 Recommendations for measurements with peak
voltmeters
Appendices
A Special recommendations for oscilloscopes
B Precautions in the use of general purpose
instruments
C Procedure for performance tests
D Interference tests
Figures
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