In this article, we present a novel concept of inertial sensor, based on a linear encoder. Compared to other interferometric sensors, the encoder is much more easy to mount, and the calibration more stable. A prototype has been built and validated experimentally by comparison with a commercial seismometer. It has a resolution of about 10 pm/√Hz. In order to further improve the resolution, two concepts of mechanical amplifiers have been studied and compared. One of them is shown to be extremely promising, provided that the amplifier does not stiffen the sensor.

中文翻译：

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基于线性编码器的低频惯性传感器

在本文中，我们提出了一种基于线性编码器的惯性传感器的新颖概念。与其他干涉式传感器相比，编码器更易于安装，并且校准更加稳定。通过与商用地震仪进行比较，已构建了原型并通过实验进行了验证。其分辨率约为10 pm /√Hz。为了进一步提高分辨率，对机械放大器的两个概念进行了研究和比较。如果放大器不使传感器变硬，则其中之一是非常有前途的。