LIS3DH Z输出噪音很大

我正在尝试使用LIS3DH传感器测量机器的振动。
我将LIS3DH设置为低功耗模式和5.376 kHz采样频率，输出8位输出。我使用spi从传感器获取数据。我使用数据表中给出的灵敏度值将此原始输出更改为 g'。
我的问题是：即使没有施加振动并且传感器安装在水平表面上，传感器也会显示Z轴输出的波动。这种波动的范围大约为0.6g至1.2g。我附上了一张显示这种输出的图像。 （X轴是时间，Y轴是以g为单位的振动）
有人可以帮我解释为什么会这样吗？有没有办法以某种方式从输出中消除这种噪音？
请帮忙。

＃lis3dh-spi #lis3dh #mems-accelerometer



以下为原文




I am trying to measure a machine's vibration using LIS3DH sensor.
I set the LIS3DH in low power mode and 5.376 kHz sampling frequency which outputs 8 bit output. I use spi to get the data from the sensor. I changed this raw output into �g' using the sensitivity value given in the datasheet.
My problem is: The sensor shows a fluctuation in its output of Z axis even when there is no vibration applied and the sensor is fitted on a horizontal surface. The range of this fluctuation is approximately from 0.6g to 1.2g. I have attached a image that shows such output. (X axis is time and Y axis is vibration in terms of g)
Can someone please help me to interpret why this is happening ? Is there a method to somehow remove this noise from the output ?
Please help.

#lis3dh-spi #lis3dh #mems-accelerometer