scope:

This part of ISO 16063 specifies the instrumentation and procedures for performing primary and secondary calibrations of rectilinear laser vibrometers in the frequency range typically between 0,4 Hz and 50 kHz (see 3.2). It describes the calibration of laser vibrometer standards designated for the calibration of either laser vibrometers or mechanical vibration transducers in accredited or non-accredited calibration laboratories, as well as the calibration of laser vibrometers by a laser vibrometer standard or by comparison to a reference transducer calibrated by laser interferometry. The specification of the instrumentation contains requirements on laser vibrometer standards. Rectilinear laser vibrometers can be calibrated in accordance with this part of ISO 16063 if they are designed as laser optical transducers with or without an indicating instrument to sense the motion quantities displacement or velocity, and to transform them into proportional (i.e., time-dependent) electrical output signals. These output signals are typically digital for laser vibrometer standards and usually analog for laser vibrometers. The output signal or the reading of a laser vibrometer may be the amplitude and, in addition, occasionally the phase shift of the motion quantity (acceleration included). In this part of ISO 16063 the modulus calibration is explicitely specified (phase calibration is provided in an informative Annex)