尺寸小、精度高、使用方便的方向探针仍是日前测量三维流场的主要手段之一。文中对一种新型方向探针——四孔探针作了初步实验研究。结果表明,四孔探针基本保留了原五孔探针的技术性能。其测角精度与五孔针相当。由于少了一个孔,四孔针具有尺寸更小、制造及标定费用更低、使用更为方便、对流场干扰小等优点,因而更具有实用价值。 Small size, high precision, easy to use directional probe is still one of the main means of measuring three-dimensional flow field. In this paper, a new type of directional probe - four-hole probe made a preliminary experimental study. The results show that the four-hole probe basically retains the original five-hole probe’s technical performance. Its angular accuracy is comparable to that of a five-hole needle. Due to the lack of a hole, four-hole needle with smaller size, lower manufacturing and calibration costs, the use of more convenient, small interference and other advantages of the flow field, which is more practical value.