电动振动产生设备.性能特性

[中文适用范围]： 本国际标准规定了电动振动发生器系统的性能特性和性能测试条件，并提供了设备制造商可以声明的附加设备特性列表（见附件 A）。 用户或设备规格编写者可以使用该信息来选择这样的系统，同时考虑到其应用。 本国际标准建立了计算系统性能的程序，该系统包括一个来源的放大器和另一个来源的振动器。 这种计算出的系统性能不如在包括实际振动器和放大器的系统上测量的性能精确，并且建议保留计算出的力。 可能需要单独指定所需振动器和/或放大器接口数据的采集，特别是如果要采集振动器或放大器以添加到现有装置中。 还可能需要指定绩效计算的责任。 本国际标准适用于产生正弦、随机和脉冲直线振动的设备。 这意味着所有系统至少在低水平上可用于正弦测试，因为随机和脉冲测试的样本响应评估和传递函数测量需要正弦能力。 当指定随机能力时，意味着某些正弦能力也是可用的。 类似地，当指定脉冲能力时，意味着某些正弦但不一定是随机的能力可用。 注：三类人预计使用本国际标准：设备的供应商、设备的购买者和设备测试组织。 设备供应商声明提供“额定”性能，通常如销售文献中所述。 购买者声明他将接受的设备的“指定”性能，通常小于或等于额定性能。 测试组织通常通过书面报告“提供”其测试和观察的结果，其中可能包括每次测量的条件和准确性，以及波形、性能图和数值表等插图。 [外文原描述]： ISO 5344:2004 specifies the performance characteristics and performance test conditions for electrodynamic vibration generator systems and provides a list of additional equipment characteristics that can be declared by the equipment manufacturer. This information can be used by the user or the writer of specifications for equipment for the selection of such a system, taking into account its application. ISO 5344:2004 establishes procedures for calculating the system performance of a system comprising an amplifier from one source and a vibrator from a different source. Such a calculated system performance is less precise than performance measured on a system comprising the actual vibrator and amplifier, and a reserve of calculated force is recommended. It can be desirable to specify separately the acquisition of needed vibrator and/or amplifier interface data, particularly if a vibrator or amplifier is to be acquired to add to an existing installation. It can also be desirable to specify the responsibility for the calculation of performance. ISO 5344:2004 is applicable to equipment producing sine, random and impulse rectilinear vibration. It is implied that all systems are usable for sine testing at least at a low level, since sine capability is needed for specimen response evaluation and transfer function measurements for random and impulse testing. When random capability is specified, it is implied that some sine capability is also available. Similarly, when impulse capability is specified, it is implied that some sine, but not necessarily random, capability is available.