电压稳定性测试（Voltage Stability Test） ꘖ七、 满载纹波测试（Ripple and Noise Test） .
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效率及电压稳定性测试 Efficiency & Voltage Stability Test
目的：通过测试数字成像设备的X线机管电压和曝光时间稳定性，探讨数字成像摄影条件的选择原则。
Objective:To obtain suitable digital radiologic exposure factors of CR and DR by measuring stability of their X-ray tube voltage and exposure time.
针对实验中由测试系统对应变敏感元件的压力所产生的电压不稳定性及时进行分析，并对常见的几种影响系统稳定性的因素做了介绍，重点对如何改善与提高系统稳定性的方法进行了分析。
This article analyzes a kind of improved elastic sensitive unit, which has the property of not being affected by the point of acting force and the property that the straingage can be easily fixed.
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