ISO 5348 pdf download

ISO 5348 pdf download.Mechanical vibration and shock — Mechanical mounting of accelerometers 1 Scope This International Standard describes the mounting characteristics of accelerometers to be specified by the manufacturer and makes recommendations to the user for mounting accelerometers. Application of this International Standard is limited to the mounting of accelerometers which are mounted on the surface of the structure in motion, as illustrated in the simplified diagram shown in figure 1 . It is not applicable to other types of transducers, such as relative motion pick-ups. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 2041 :1 990, Vibration and shock — Vocabulary. ISO 2954:1 975, Mechanical vibration of rotating and reciprocating machinery — Requirements for instruments for measuring vibration severity. ISO 5347-1 4:1 993, Methods for the calibration of vibration and shock pick-ups — Part 1 4: Resonance frequency testing of undamped accelerometers on a steel block. ISO 5347-22:1 997, Methods for the calibration of vibration and shock pick-ups — Part 22: Accelerometer resonance testing — General methods. ISO 8042:1 988, Shock and vibration measurements — Characteristics to be specified for seismic pick-ups. 3 Definitions For the purposes of this International Standard, the terms and definitions given in ISO 2041 apply. 4 Characteristics to be specified by manufacturers of accelerometers The manufacturer shall specify the following characteristics: a) mounting-surface characteristics pertinent to the mounting device(s) furnished with the accelerometer, e.g. surface finish roughness, surface flatness, hole perpendicularity and tap class; b) the geometrical dimensions of the accelerometer including — the position of the centre of gravity of the accelerometer as a whole, — the position of the centre of gravity of the seismic mass of the accelerometer; c) the mounting technique used during calibration; d) the recommended and maximum (i.e. for less than 2 % change in the useful frequency range) mounting torque; e) temperature limitations of the accelerometer and fastening device; f) pertinent mechanical characteristics, i.e. — total mass, — material of base, — the lowest unmounted resonance frequency of the accelerometer,...