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孙勳努

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[问答]

LPS22HB比LPS25HB更精确吗?

嗨,


我可以从LPS25HB ST描述页面上读到它有“高分辨率模式:0.01 hPa RMS”,而在LPS22HB上没有任何关于此的内容。

但是看看这两个数据,我发现:
LPS22HB
PAccT +/- 0.1hPa
Pnoise 0.0075hPa
LPS25HB
PAccT +/- 0.2hPa
Pnoise 0.01hPa

因此,尽管LPS22HB没有添加此描述,但它仍然比LPS25HB更精确。

这是对的还是我错过了什么?

以上来自于谷歌翻译


以下为原文




Hi,


I can read from LPS25HB ST description page that it have ''High-resolution mode: 0.01 hPa RMS'' while on LPS22HB there's nothing about this.

But looking at either datasheed I've found that:
LPS22HB
PAccT +/-0.1hPa
Pnoise 0.0075hPa
LPS25HB  
PAccT +/-0.2hPa
Pnoise 0.01hPa

So, despite LPS22HB doesn't have this description add, it's still more precise than LPS25HB.

It's correct or I'm missing something?

回帖(1)

胡红枚

2018-9-12 10:29:43
两种器件都不提供精度的最小值/最大值,只是数据表中的典型值。两者都没有提供真实设备集合的测量曲线。因此,谈论任何这些设备的精度是没有意义的。

以上来自于谷歌翻译


以下为原文




Both devices do not provide Min/Max values for accuracy, only a typical value in their datasheet. Neither provided are measured curves for an ensemble of real devices,. So it does not make sense to talk about precision for any of these devices.
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