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冯媛媛

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[问答]

LIS3DSH如何在很大的温差下发生变化?

有谁知道传感器的灵敏度和偏移如何在很大的温差下发生变化?

应用说明说:
''TCSo - 灵敏度随温度变化:此参数定义灵敏度
随温度变化。例如,在 2.0g满量程范围内,灵敏度
变化在 0.01%/ C。因此,如果环境温度发生变化
40°C,从25°C到65°C,灵敏度变化范围为 0.01%* 40
= 0.4%,这意味着超过40 C的灵敏度变化在0.996 mg / LSB之内
1.004 mg / LSB,表明灵敏度相对于温度非常稳定
更改。因此,可以忽略灵敏度的温度补偿。''

这是否意味着如果我将温度提高40 C,他们不知道灵敏度会在哪个方向发生变化?这意味着''灵敏度变化。数据表中的温度'对我来说根本不会帮助我。

#lis3dsh #temperature

以上来自于谷歌翻译


以下为原文




Does anyone knows how the sensors sensitivity and offset changes over a big temperature difference?

Application Note says:

''TCSo - Sensitivity change vs. temperature: This parameter defines how sensitivity

changes with temperature. For example, at a �2.0 g full-scale range, the sensitivity

changes within �0.01%/�C. Therefore, if the environmental temperature changes

40 �C, from 25 �C to 65 �C, then the sensitivity changes within the range of �0.01% * 40

= �0.4%, which means the sensitivity change over 40 �C is within 0.996 mg/LSB and

1.004 mg/LSB, which shows that the sensitivity is very stable versus temperature

change. Thus, temperature compensation for sensitivity can be ignored.''

Does this mean that they didn't know in which direction the Sensitivity will change if i increase the temperature by 40�C? That would mean the ''Sensitivity changevs. temperature'' in the datasheet would't help me at all.
  
#lis3dsh #temperature

回帖(2)

曾玲娟

2018-10-11 17:03:52
灵敏度在内部通过温度补偿,因此传感器TCSo通常非常低±0.01%/°C。
 
你不必做任何其他的温度补偿。
对温度的敏感性依赖不必是单调的,因此不可能只说它有正号或负号。
 
最好的祝福
米罗斯拉夫

以上来自于谷歌翻译


以下为原文





The sensitivity is internally compensated over temperature so the sensor TCSo is typically very low ±0.01%/°C.

You don’t have to do any other temperature compensation.
Sensitivity dependence on temperature doesn’t have to be monotonous so it not possible to say only if it has positive or negative sign.

Best regards
Miroslav
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韩刚龙

2018-10-11 17:21:10
我在论坛和描述中读到每个传感器都有特定的温度依赖性。
 正如我的实验所示,在很宽的温度范围内,加速度计和陀螺仪的读数需要根据温度进行调整

另见主题https://community.st.com/message/205156-lsm6dsl-lsm303agr-lsm9ds1-temperature-dependence

以上来自于谷歌翻译


以下为原文






I read on the forums and in the descriptions that each sensor has a particular temperature dependence.
And as my experiments have shown in a wide temperature range, the readings of the accelerometer and the gyroscope need to be adjusted depending on the temperature
.
See also topic https://community.st.com/message/205156-lsm6dsl-lsm303agr-lsm9ds1-temperature-dependence
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