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    • 8. 发明授权
    • Mechanical amplification of small dimensional changes using bowing
    • 使用弯曲的小尺寸变化的机械放大
    • US07707896B2
    • 2010-05-04
    • US12014153
    • 2008-01-15
    • James A. Kuzdrall
    • James A. Kuzdrall
    • G01N3/20
    • G01B11/161G01J5/061G01J5/38G01K5/58G01R33/04G05D23/27541
    • The method and apparatus employ a resilient element having end definition points that are constrained between stops spaced apart at a separation S. The separation S is less than a free length L between the end definition points when not constrained, causing the resilient element to bow and resulting in a displacement m of a central region of the resilient element. The displacement m changes responsive to the net change in the separation S and the free length L. When the geometry is set such that the displacement m is very small, a relatively large change in displacement m results from small net changes. The change in the displacement m can be monitored to provide a micro strain gauge. The stops can be mounted to a substrate which differs from the resilient element in its response to a selected environmental stimulus to provide a sensor for the environmental stimulus.
    • 该方法和装置采用弹性元件,该弹性元件具有约束在间隔S间隔开的止挡件之间的端部定义点。当不限制时,分离部分S小于端部定义点之间的自由长度L,导致弹性元件弓形 导致弹性元件的中心区域的位移m。 位移m响应于分离S和自由长度L的净变化而变化。当设置几何形状使得位移m非常小时,位移m的相对较大的变化是由于净变化的小。 可以监测位移m的变化以提供微应变计。 止动件可以安装到与弹性元件不同的基板,其响应于所选择的环境刺激,以提供用于环境刺激的传感器。