LSM330DLC陀螺仪回流焊问题

tify;text-indent: 40px;">我们用了
LSM330DLC陀螺仪电动自平衡独轮车。有一个问题
LSM330DLC
后

回流焊料。
该
LSM330DLC
有偏移来检测
从垂直方向的角度。偏移可能是0-7度，但它们仍然处于良好的工作状态。我制造了1000个单位
LSM330DLC
基于控制器两次使用
回流焊料
。
该比例约为15％，这已经抵消了问题。其他人都很好。
如何解决这个问题呢？
你觉得吗？
LSM330DLC
是
受潮湿？

谨慎
LSM330DLC如下。
1.密封袋打开后，必须进行回流焊接的设备

a）安装在：工厂条件下的168小时以下为原文

We used
LSM330DLC Gyroscopes in electric self-balancing unicycle. There is one problem of
LSM330DLC
after

reflow solder.

The
LSM330DLC
has offset to detect
the angle from the vertical direction. The offset may be 0-7 degree, but they are still in good working condition.I made 1000 units of
LSM330DLC
based controller two times using
reflow solder
.
The ratio is about 15% that has offset problem. Others are good.

How to solve this problem?
Do you think the
LSM330DLC
are
affected by damp?

The caution about
LSM330DLC is as follows.

1.After sealed bag is opened, devices that subjected to reflow solder must

a) mounted within: 168 hours at factory conditions <30
℃/60%RH

b) stored at <10
℃/60%RH

The
LSM330DLC
is not stored with above condition
I really didn't bake them befor

reflow solder.

Do you think the offset problem can be solved if I baked the
LSM330DLC
before
reflow solder?
Thanks

my email is: xmgatech@gmail.com

问答对人有帮助，内容完整，我也想知道答案 0 tify;text-indent: 40px;">我们用了 LSM330DLC陀螺仪电动自平衡独轮车。有一个问题 LSM330DLC 后回流焊料。该 LSM330DLC 有偏移来检测从垂直方向的角度。偏移可能是0-7度，但它们仍然处于良好的工作状态。我制造了1000个单位 LSM330DLC 基于控制器两次使用回流焊料。该比例约为15％，这已经抵消了问题。其他人都很好。如何解决这个问题呢？你觉得吗？ LSM330DLC 是受潮湿？谨慎 LSM330DLC如下。 1.密封袋打开后，必须进行回流焊接的设备 a）安装在：工厂条件下的168小时以下为原文 We used LSM330DLC Gyroscopes in electric self-balancing unicycle. There is one problem of LSM330DLC after reflow solder. The LSM330DLC has offset to detect the angle from the vertical direction. The offset may be 0-7 degree, but they are still in good working condition.I made 1000 units of LSM330DLC based controller two times using reflow solder . The ratio is about 15% that has offset problem. Others are good. How to solve this problem? Do you think the LSM330DLC are affected by damp? The caution about LSM330DLC is as follows. 1.After sealed bag is opened, devices that subjected to reflow solder must a) mounted within: 168 hours at factory conditions <30 ℃/60%RH b) stored at <10 ℃/60%RH The LSM330DLC is not stored with above condition I really didn't bake them befor reflow solder. Do you think the offset problem can be solved if I baked the LSM330DLC before reflow solder? Thanks my email is: xmgatech@gmail.com 0
2018-11-23 10:33:03　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × wang21cj 该类别下有 47 个回答。邀请回答 chm5 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 42 个回答。邀请回答 hgimtk 该类别下有 36 个回答。邀请回答 HengDu 该类别下有 31 个回答。邀请回答 hwp0415229 该类别下有 30 个回答。邀请回答可口可甜该类别下有 30 个回答。邀请回答 jghgfdssas 该类别下有 28 个回答。邀请回答 jiangwenwen 该类别下有 28 个回答。邀请回答 kingnet6688 该类别下有 28 个回答。邀请回答麻酱该类别下有 28 个回答。邀请回答 andyfly7 该类别下有 28 个回答。邀请回答 bluepink 该类别下有 27 个回答。邀请回答法规处发该类别下有 27 个回答。邀请回答 ldliu 该类别下有 27 个回答。邀请回答成长的小师弟该类别下有 27 个回答。邀请回答云汉007 该类别下有 27 个回答。邀请回答颜刚YanG 该类别下有 27 个回答。邀请回答柱子图宁该类别下有 27 个回答。邀请回答 uuwyfsdfsf 该类别下有 26 个回答。邀请回答举报杨逊咏相关推荐 • LSM330DLC使用什么加速度计？ 1324 • LSM330DLC自测试位在哪个寄存器中 1557 • LSM330对比LSM330DLC有什么区别？ 4100 • LSM330DLC是0V且I2C工作正常 898 • ISM330DLC读到陀螺仪在没有运动时会返回一些偏移值怎么处理？ 397 • ISM330DLC的数据采样会受到噪声干扰怎么解决？ 412 • 在LSM330TR陀螺仪采样序列中从power_down模式启动到正常模式需要多长时间？ 1433 • 如何才能确定Altium回流焊板子方向？ 2147 • 回流焊炉温测试仪 2381 • SP-WROOM-02模组可以通过回流焊炉送两次吗？ 465 1个回答

答案对人有帮助，有参考价值 0 我可能错了，但它可能是正常的零g偏移分布。它在数据表中表示为60mg典型值，这通常意味着这是1-sigma值。换句话说，只有68％的设备适合这个数字。大约95％将适合+/- 120mg，其余的可以达到+/- 180mg（如果我们假设ST不允许超出生产的设备偏差超过3-sigma）。可能你应该为每块电路板做一些零克校准并将其存储在NV存储器中。还要注意，它会随着温度而变化，从上电到上电循环可能无法完全重复。以上来自于谷歌翻译以下为原文 I may be wrong but it could be a normal zero-g offset distribution. It is stated as 60mg typical value in the datasheet, which usually means that this is 1-sigma value. In other words only 68% of devices will fit in this number. About 95% will fit within +/-120mg and the rest could go up to +/-180mg (if we assume that ST is not allowing more than 3-sigma deviation of the devices out of the production). Probably you shall do some zero-g calibration for each board and store it in a NV memory. Be aware also that it will change with the temperature and might be not fully repeatable from power on to power on cycle.

2018-11-23 10:47:14 评论举报王静

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