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参数资料
| 型号： | AS5040 DB V2 |
| 厂商： | ams |
| 文件页数： | 27/34页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO AS5040 |
| 标准包装： | 1 |
| 传感器类型： | 磁性，旋转位置 |
| 传感范围： | 360° |
| 接口： | USB |
| 电源电压： | 5V USB 或 9V |
| 嵌入式： | 是，MCU，8 位 |
| 已供物品： | 板，线缆 |
| 已用 IC / 零件： | AS5040 |
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AS5040
Data Sheet
18 Angular Output Tolerances
Accuracy
Accuracy is defined as the error between measured angle and actual angle. It is influenced by several factors:
the non-linearity of the analog-digital converters,
internal gain and mismatch errors,
non-linearity due to misalignment of the magnet
As a sum of all these errors, the accuracy with centered magnet = (Err max – Err min )/2 is specified as better than ± 0.5
degrees @ 25°C (see Figure 25).
Misalignment of the magnet further reduces the accuracy. Figure 24 shows an example of a 3D-graph displaying non-
linearity over XY-misalignment. The center of the square XY-area corresponds to a centered magnet (see dot in the
center of the graph). The X- and Y- axis extends to a misalignment of ± 1mm in both directions. The total misalignment
area of the graph covers a square of 2x2 mm (79x79mil) with a step size of 100μm.
For each misalignment step, the measurement as shown in Figure 25 is repeated and the accuracy
(Err max – Err min )/2 (e.g. 0.25° in Figure 25) is entered as the Z-axis in the 3D-graph.
Figure 24: Example of Linearity Error over XY Misalignment
Linearity Error over XY-misalignment [°]
6
5
4
°
3
2
1000
800
600
400
1
0
200
0
y
-200
-400
-600
-800
-1000
x
The maximum non-linearity error on this example is better than ± 1 degree (inner circle) over a misalignment radius of
~0.7mm. For volume production, the placement tolerance of the IC within the package ( ± 0.235mm) must also be
taken into account.
The total nonlinearity error over process tolerances, temperature and a misalignment circle radius of 0.25mm is
specified better than ± 1.4 degrees.
The magnet used for this measurement was a cylindrical NdFeB (Bomatec? BMN-35H) magnet with 6mm diameter
and 2.5mm in height.
www.austriamicrosystems.com
Revision 2.10
26 - 33
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相关代理商/技术参数 |
参数描述 |
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| AS5040-PB | 功能描述:磁传感器开发工具 AS5040 Progamming Board RoHS:否 制造商:Maxim Integrated 工具用于评估: 接口类型: 工作电压: |
| AS5040-SS_EK_AB | 功能描述:AS5040 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:串行 灵敏度:- 电压 - 电源:9V 嵌入式:否 所含物品:板 使用的 IC/零件:AS5040 标准包装:1 |
| AS5040-SS_EK_DB | 功能描述:AS5040 - Magnetic, Rotary Position Sensor Evaluation Board 制造商:ams 系列:- 零件状态:有效 传感器类型:磁性，旋转位置 感应范围:360° 接口:USB 灵敏度:- 电压 - 电源:5V USB 或 9V 嵌入式:是，MCU，8 位 所含物品:板，线缆 使用的 IC/零件:AS5040 标准包装:1 |
| AS5040-SS_EK_PB | 功能描述:AS5000 Programmer, AS5040 - ZIF Socket 制造商:ams 系列:- 零件状态:有效 模块/板类型:ZIF 插口 配套使用产品/相关产品:AS5000 编程器，AS5040 标准包装:1 |
| AS-5041 | 制造商:Bud Industries Inc 功能描述: |
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