本文件规定了一种用于确定压电声发射传感器的接收灵敏度谱的方法，以每个运动输入的伏特输出为绝对单位，其中运动可以是在用于声发射测试的频率范围内的粒子位移（例如，以纳米为单位）或粒子速度（例如，毫米每秒），从20kHz至约1.5由此传感器受到来自直接耦合的压电发射器的垂直于传感器表面的运动脉冲的刺激。 本文件还规定了一种方法，通过使用扫描激光测振仪测量发射器有效面上的粒子位移脉冲和发射器输入电压谱，以绝对单位（例如，每伏输入的纳米输出）确定压电发射器的发射灵敏度谱。 当入射角不同于正常（90°）或当穿过传感器敏感面的波长小于约10°时，本文件不包括对传感器响应的已知抵消效应乘以传感器敏感面的尺寸。 本文件未规定测量不同材料对传感器灵敏度影响的方法，但附件F 注意事项本文件中描述的方法可考虑与压电传感器以外的其他传感器一起使用，压电传感器检测平面上的运动并在相同的频率范围内工作。

This document specifies a method for the determination of the receiving sensitivity spectra of a piezoelectric acoustic emission sensor, in absolute units of volts output per motion input, whereby the motion can be particle displacement (e.g. in nanometres) or particle velocity (e.g. in millimetres per second) over a frequency range used for acoustic emission testing, from 20 kHz to about 1,5 MHz, whereby the sensor is stimulated by a motion pulse in normal direction to the sensor’s face from a directly coupled piezoelectric transmitter. This document also specifies a method for the determination of the transmitting sensitivity spectrum of a piezoelectric transmitter in absolute units, for example, in nanometres output per volt input, by measuring both the particle displacement pulse over the transmitter’s active face and the transmitter’s input voltage spectrum, using a scanning laser vibrometer. This document does not include the known cancellation effects on a sensor’s response, when the angle of incidence differs from normal (90°) or when the length of the wave passing across the sensor’s sensitive face is shorter than about 10 times the dimension of the sensor’s sensitive face. This document does not specify a method to measure the influence of different materials on a sensor’s sensitivity, but this effect is addressed in Annex F. NOTE      The methods described in this document can be considered for use with other than piezoelectric sensors, which detect motion at a flat face and work in the same frequency range.