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参数资料
| 型号： | AS5043 DB V2 |
| 厂商： | ams |
| 文件页数： | 25/37页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO AS5043 |
| 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： | AS5043 |
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AS5043
Data Sheet – Angular Output Tolerances
18 Angular Output Tolerances
18.1 Accuracy; Digital Outputs
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 23).
Misalignment of the magnet further reduces the accuracy. Figure 22 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 23 is repeated and the accuracy
(Err max – Err min )/2 (e.g. 0.25° in Figure 23) is entered as the Z-axis in the 3D-graph.
18.2 Accuracy; Analog Output
The analog output has the same accuracy as the digital output with the addition of the nonlinearities of the DAC and the
OPAMP (+/-1LSB; see Table 5 and 0).
Figure 22: Example of Linearity Error over XY Misalignment
Linearity Error over XY-misalignment [°]
6
5
4
°
3
2
1
800
500
200
0
y
-100
-400
-700
-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 1.80
24 – 36
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相关代理商/技术参数 |
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|---|---|
| AS5043TR | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:PROGRAMMABLE 360° MAGNETIC ANGLE ENCODER WITH ABSOLUTE SSI AND ANALOG OUTPUTS |
| AS5045 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:12 BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER |
| AS5045 AB | 功能描述:BOARD ADAPTER AS5045 RoHS:否 类别:编程器，开发系统 >> 评估板 - 传感器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| AS5045 DB | 制造商:ams 功能描述:Demoboard for AS5045 Rotary Encoder, Bulk |
| AS5045 DB V2 | 功能描述:BOARD DEMO AS5045 RoHS:否 类别:编程器，开发系统 >> 评估板 - 传感器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
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