完善资料让更多小伙伴认识你,还能领取20积分哦, 立即完善>
我们正在使用LSM9DS1的加速度计进行滚动测量(atan2(ay,az))。我们看到极小的错误,只是一个程度的一小部分。由于这符合我们要求的精度,我们认为我们不需要进行任何校准来进行滚动测量。这是真的?我们对数据表感到困惑,这似乎表明可能存在高达90毫克的误差。如果在Y轴上发生90毫克的误差,单独这将在我们的滚动测量中产生5度误差,但我们几乎看不到任何误差。这是在工厂校准的吗?我们是否应该进行自己的校准以确保误差小于1度?谢谢!
以上来自于谷歌翻译 以下为原文 We are making roll measurements (atan2(ay,az)) using the LSM9DS1's accelerometer. We see extremely little error, just fractions of a degree. Since this is within our required accuracy, we are thinking that we don't need to do any calibration to get our roll measurement. Is this true? We are confused by the datasheet which seems to suggest that errors as high as 90 mg are possible. If a 90 mg error occurred in the Y axis, this alone would generate a 5 degree error in our roll measurement, yet we are seeing almost no error. Is this calibrated in the factory? Should we do our own calibration to ensure that we have errors less than 1 degree? Thanks! |
|
相关推荐
3个回答
|
|
是的,要进行精确的倾斜测量,您必须自己对每个设备进行校准。
数据表中提到的90mg零g电平偏移是典型值,因此可能更糟。 以上来自于谷歌翻译 以下为原文 Yes, for accurate tilt measurement you have to to you own calibration for each device. The mentioned 90mg zero-g level offset in datasheet is typical value, so it can be even worse. |
|
|
|
|
|
|
|
您可以使用MotionAC库来提供实时加速度计校准。图书馆有
http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32cube-expansion-software/x-cube-mems1.html 软件包。或者您可以根据设计技巧进行6点校准 http://www.st.com/content/ccc/resource/technical/document/design_tip/group0/28/fa/7d/ed/6a/41/4f/c1/DM00253745/files/DM00253745.pdf/jcr:内容/翻译/ en.DM00253745.pdf 。 以上来自于谷歌翻译 以下为原文 You can use MotionAC library which provides real-time accelerometer calibration. The library is available in http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32cube-expansion-software/x-cube-mems1.html software package.Or you can perform 6-point calibration according to for example design tip http://www.st.com/content/ccc/resource/technical/document/design_tip/group0/28/fa/7d/ed/6a/41/4f/c1/DM00253745/files/DM00253745.pdf/jcr:content/translations/en.DM00253745.pdf . |
|
|
|
只有小组成员才能发言,加入小组>>
请教:在使用UDE STK时,单片机使用SPC560D30L1,在配置文件怎么设置或选择?里面只有SPC560D40的选项
2741 浏览 1 评论
3244 浏览 1 评论
请问是否有通过UART连接的两个微处理器之间实现双向值交换的方法?
1813 浏览 1 评论
3653 浏览 6 评论
6044 浏览 21 评论
1342浏览 4评论
203浏览 3评论
对H747I-DISCO写程序时将CN2的st-link复用为usart1,再次烧录时无法检测到stlink怎么解决?
356浏览 2评论
STM32G474RE芯片只是串口发个数据就发烫严重是怎么回事?
446浏览 2评论
STM32处理增量式编码器Z信号如何判断中断是正转的还是反向转的?
275浏览 2评论
小黑屋| 手机版| Archiver| 电子发烧友 ( 湘ICP备2023018690号 )
GMT+8, 2024-12-27 02:18 , Processed in 1.201147 second(s), Total 82, Slave 66 queries .
Powered by 电子发烧友网
© 2015 bbs.elecfans.com
关注我们的微信
下载发烧友APP
电子发烧友观察
版权所有 © 湖南华秋数字科技有限公司
电子发烧友 (电路图) 湘公网安备 43011202000918 号 电信与信息服务业务经营许可证:合字B2-20210191 工商网监 湘ICP备2023018690号