针对外卡压力传感器存在的测试信号重复性差、信噪比低、安装局限性大的问题,设计了一种新型卡持结构——人字形结构,并从理论上分析了该结构相对于“匚”形夹块和环形夹块的优势。实验数据表明:采用人字形卡持结构的外卡压力传感器具有测试可靠、信噪比高、通用性好的特点。 In view of the problems of poor repeatability, low signal-noise ratio and large installation limitations of the test signal of the external pressure sensor, a new type of clamping structure-herringbone structure is designed and the structure is analyzed theoretically with respect to “匚 ”The advantages of form and ring clamps. Experimental data show that: the use of chevron clamping structure of the card pressure sensor with reliable testing, high signal to noise ratio, good versatility.