膜面张力是膜结构施工和使用阶段核心的参数。但是，膜面张力测量长期缺少有效工程应用方法，是该领域的一个瓶颈问题。本文基于静力荷载位移法原理，研发了一种主动吸附顶推张力平衡薄膜张力计。薄膜张力计使用吸盘吸附膜面构建法向约束边界的圆形膜面，顶推膜面中心，测量顶推力与膜面变形，计算得到薄膜的双向张力。同时实现了张力计测量、数据采集和传输的自动化控制，远程遥控和数据传输。本文给出了薄膜张力计张力测量的标定公式，并对P类、G类、E类膜材进行了标定试验，得到了相应的拟合参数。对P类、G类类膜材进行了张力测量校验，在膜结构工程合理的双向张力范围1.5~6.0 kN/m，应力比范围为1:1~1:4的张力测量中薄膜张力计最大误差小于10%，具有较高的测量精度，可满足实际工程用途。

Membrane tension is a core parameter in the construction and use stages of membrane structures, However, the long-standing lack of effective engineering application methods of membrane tension measurement has been a bottleneck in this field. This paper develops an active adsorption central pushing tension equilibrated membrane tensiometer based on the principle of static load displacement method. The membrane tensiometer uses a suction cup to adsorb the membrane surface, creating a normal constraint boundary circular membrane surface, applies thrust to the center of the membrane surface, measures the thrust force and membrane surface deformation, and calculates the bidirectional membrane tension. It simultaneously achieves automated control of the tensiometer measurement, data acquisition, and transmission, as well as remote control and data transmission. This paper presents the calibration formula for tension measurement using the membrane tensiometer and conducts calibration tests on P, G, and E type membranes, obtaining corresponding fitting parameters. Tension measurement verification was performed on P and G type membranes, with the membrane tensiometer showing a maximum error of less than 10% in tension measurements across a reasonable biaxial tension range in membrane structure of 1.5 to 6.0 kN/m and a stress ratio range of 1:1 to 1:4, demonstrating high measurement accuracy suitable for practical engineering applications.