Foreword
1 Scope
2 Normative references
3 Terms and test methods
4 Uncertainty of measurement
5 Requirements for apparatus and other conditions
5.1 General
5.2 Environmental conditions
5.3 Vibration generation equipment
5.3.1 General
5.3.2 Electro-dynamic vibration exciter
5.3.3 Piezo-electric vibration exciter
5.4 Seismic block(s) for vibration exciter and laser
interferometer
5.5 Interferometer system
5.5.1 Common requirements for Methods 1, 2 and 3
5.5.2 Laser
5.5.3 Photodetector
5.5.4 Laser light reflector and adjustment facilities
5.6 Instrumentation for interferometer signal processing
5.6.1 General
5.6.2 Instrumentation for fringe counting (for Method 1)
5.6.3 Instrumentation for zero-point detection
(for Method 2)
5.6.4 Instrumentation for sine-approximation
(for Method 3)
5.7 Applicability of laser vibrometer standards (LVSs)
5.7.1 General consideration
5.7.2 Laser Optical Transducer
5.7.3 Mode of operation
5.7.4 Motion sensing position
5.7.5 Laser
5.7.6 Photodetector
5.7.7 Adaptability of optics
5.7.8 Laser light spot
5.7.9 Doppler signal conditioning
5.7.10 Digital signal processing
5.7.11 Digital Interface
5.7.12 Optional phase measurement
5.7.13 Traceability
5.8 Voltage measuring instrumentation
5.9 Distortion measuring instrumentation
5.10 Oscilloscope
5.11 Reference transducer
5.12 Other requirements
6 Preferred amplitudes and frequencies
7 Common procedure for primary calibration (Methods 1, 2 and 3)
8 Method using fringe counting (Method 1)
8.1 General
8.2 Specific procedure for Method 1
8.3 Expression of results for Method 1
9 Method using minimum-point detection (Method 2)
9.1 General
9.2 Specific procedure for Method 2
9.3 Expression of results for Method 2
10 Methods using sine approximation: Method 3/homodyne
version and Method 3/heterodyne version
10.1 General
10.2 Specific procedure for Method 3
10.3 Data processing
11 Method using comparison to a reference transducer (Method 4)
11.1 Specific procedure for Method 4
11.2 Expression of results for Method 4
12 Report of calibration results
Annex A (normative) - Uncertainty components in the
primary calibration by laser interferometry of
vibration and shock transducers
A.1 Calculation of U[rel](y) for Method 1
A.2 Calculation of U[rel](y) for Method 2
A.3 Calculation of U[rel](y) for Method 3
A.3.1 Calculation of U[rel](y) for Method 3 with
evaluation of uncertainty sources of interferometer
A.3.2 Calculation of U[rel](y) for Method 3 with known
uncertainty of velocity signal from interferometer
(uncertainty of traceability)
A.4 Calculation of U[rel](y) for Method 4
Annex B (informative) - Three versions of Method 3 based on
Laser Doppler Velocimetry
B.1 Sine-approximation method using quadrature signals
B.2 Sine-approximation method using time-interval measurement
Annex C (informative) - Example of calculation of measurement
uncertainty in calibration of a laser vibrometer
Annex D (informative) - Phase shift calibration of laser
vibrometers
D.1 General
D.2 Procedure
D.3 Data processing
Bibliography