三维声强技术的发展对于声学测量领域具有重要的意义，三维声强标定技术是 保证三维声强测量精度的前提条件． 采用传递函数法标定三维声强测量系统，并在全消声 室中采用经标定后的三维声强测量系统测量正四面体传声器的幅值误差和方向性误差． 为了简化计算，在保证精度的前提下将测量环境近似为平面波声场． 由全消声室实测结果 可知: 采用文中所述三维声强校准系统可保证声强探头具备较高的测量精度，在 f =1000 Hz 时，幅值误差仿真和实测的差值小于 1. 4 dB，方向性误差仿真和实测的差值小于 10°

The development of Three-dimension sound intensity technology is of significance to the field of acoustic measurement． The three-dimension sound intensity calibration technology is to ensure the accuracy of three-dimension sound intensity measurement． This paper is mainly about the transfer function method to calibrate the three-dimension sound intensity measurement system，and to measure the amplitude error and directional error of the system in the whole anechoic chamber． Under the premise of ensuring accuracy，the measurement environment can be approximated as a planar sound field to simplify the calculation． It can be known from the actual measurement results that the adoption of the three-dimension sound intensity calibration system described in the text can ensure that the sound intensity probe has a high measurement accuracy． when f = 1 000 Hz，the difference between the amplitude error simulation and the value measured is less than 1. 4dB，and the difference between the directional error simulation and the value measured is less than 10°． Three-dimension sound intensity calibration system is to ensure that the sound intensity probe with a high accuracy．