土体刚度仪是一种路基压实质量检测新仪器，介绍了土体刚度仪的构造和原理。
The organization and principle of geogauge who is new measurement instrument for compacted quality of roadbed are introduced.
理论分析与实测结果表明，该测力仪同时具有很高的刚度和灵敏度，并且有安装方便、不影响机床原有特性的特点。
Theoretical analyses and calibration results show that it has both high sensitivity and high rigidity. Besides, it is easy to mount and has no influence on the machine performance.
试验结果表明：在对电感测微仪测头的设计中，合理增加刚度和预压量、减少活动部分的质量可以提高测头的动态响应性能。
The test results indicate that increasing reasonably the probe's stiffness and pre-compression capacity and reducing the mass of movable part may enhance its dynamic response performance.
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