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参数资料
| 型号： | AS5030 AB |
| 厂商： | ams |
| 文件页数： | 34/44页 |
| 文件大小： | 0K |
| 描述： | BOARD ADAPTER AS5030 |
| 标准包装： | 1 |
| 传感器类型： | 磁性，旋转位置 |
| 传感范围： | 360° |
| 接口： | 串行 |
| 电源电压： | 5V |
| 嵌入式： | 否 |
| 已供物品： | 板 |
| 已用 IC / 零件： | AS5030 |
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AS5030
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
8.8 Accuracy of the Encoder System
This chapter describes which individual factors influence the accuracy of the encoder system and how to improve them.
Accuracy is defined as the difference between measured angle and actual angle. This is not to be confused with resolution, which is the smallest
step that the system can resolve.
The two parameters are not necessarily linked together. A high resolution encoder may not necessarily be highly accurate as well.
8.8.1
Quantization Error
There is however a direct link between resolution and accuracy, which is the quantization error:
Figure 28. Quantization Error of a Low Resolution and a High Resolution System
Quantization
Error
ideal function
digitized
function
low
resolution
ideal function
digitized
function
high
resolution
+? LSB
-? LSB
error
+? LSB
-? LSB
The resolution of the encoder determines the smallest step size. The angle error caused by quantization cannot get better than ± ? LSB. As
shown in Figure 28 , a higher resolution system (right picture) has a smaller quantization error, as the step size is smaller.
For the AS5030, the quantization error is ± ? LSB = ± 0.7°
Figure 29. Typical INL Error Over 360°
INL including quantization error
1,5
1
0,5
0
-0,5
-1
-1,5
0
45
90
135
180
225
270
315
360
Angle steps
INL
Average (16x)
www.ams.com/AS5030
Revision 2.4
34 - 44
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS5030ATST | 制造商:ams 功能描述:T&R / TSSOP 16 |
| AS5030-ATST | 功能描述:板机接口霍耳效应/磁性传感器 RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23 |
| AS5030ATSU | 制造商:AMS 功能描述:IC MAGNETIC ROTARY ENCODER 8BIT 16-TSSO 制造商:AMS 功能描述:IC, MAGNETIC ROTARY ENCODER 8BIT 16-TSSO 制造商:AMS 功能描述:IC, MAGNETIC ROTARY ENCODER 8BIT 16-TSSOP; IC Function:Encoder IC; Brief Features:360 Contactless Angular Position Encoding, Two Digital 8-bit Absolute Output; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; No. of Pins:16 ;RoHS Compliant: Yes |
| AS5030-ATSU | 功能描述:板机接口霍耳效应/磁性传感器 RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23 |
| AS5030-DB | 功能描述:磁传感器开发工具 AS5030 Demo Board RoHS:否 制造商:Maxim Integrated 工具用于评估: 接口类型: 工作电压: |
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