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李叱镡

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[问答]

LIS3MDL磁力计数据读数错误

大家好,

我正在我的电路板上工作LIS3MDL寄存器。但是当我尝试测量电机产生的磁场时,我的偏差非常大。
我对LIS3MDL的设置如下。
0x22 - 0x00(也尝试使用0x22 - 0x03)
0x21 - 0x00
0x23 - 0x0C
0x24 - 0x00
0x30 - 0x00
0x32 - 0x00
0x33 - 0x00

我正在设置300 ODR(HP模式)。
(从每个轴读取1个样本后延迟100毫秒)。
(在para下面供参考,你也可以忽略)。
所以我在这里说的偏差是,当我收集样本/时间,并且转换频率时,我得到大约30-35hz,但是当我用其他传感器(bosch sensortech)测量时,我得到了磁读数的精确匹配。 (通过应用字段验证并且如上所述进行转换(相同转换))完全匹配将是50hz。

传感器通过SPI(4线)模式连接。
在这里我想知道,如果我在寄存器中进行了正确的设置,还有其他任何设置/过程。

所以,如果有人能指出我正确的方向,那将是非常有帮助的。

提前致谢。

(还包含x,y,z原始样本文件)

以上来自于谷歌翻译


以下为原文

Hi All,

I am working on the LIS3MDL register on my board. But When I try to measure the Magnetic field Produced by motors, I am getting very high deviation.
My settings for the LIS3MDL are as below.
0x22 -- 0x00 (also tried with 0x22 -- 0x03)
0x21 -- 0x00
0x23 -- 0x0C
0x24 -- 0x00
0x30 -- 0x00
0x32 -- 0x00
0x33 -- 0x00

And I am setting 300 ODR (HP Mode).
(delay of 100 ms after reading 1 sample from each axis).
(Below para is for reference , you can also neglect).
So The deviation Which I am talking here is, when I collect samples/time, and convert frequency I get somewhere around 30-35hz but when I measured with other sensor(bosch sensortech) I am getting exact match of magnetic readings. (verified with field applied and also converting as above (same conversion) ) the exact match would be 50hz.

Sensor is connected over SPI (4 wires) mode.
Here I wanted to know, If I am doing correct settings in the register and also Is there any other settings/process.

So , Please if any one can point me out in right direction, that would be very helpful.

Thanks in advance.

(also enclosing the x,y,z raw samples file)

回帖(2)

曾玲娟

2019-2-13 16:36:57
注册CTRL_REG1(20h)中的设置是什么?
你怎么看数据?你在使用DRDY中断吗?

以上来自于谷歌翻译


以下为原文

What is your settings in register CTRL_REG1 (20h)?
How do you read the data? Are you using DRDY interrupt?
举报

stephen2022

2022-8-3 17:45:05
I now have the same question ,so who can tell me how to solve this issue?
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