参数资料
型号: AS5311 DB
厂商: ams
文件页数: 23/29页
文件大小: 0K
描述: BOARD EVAL FOR AS5311
标准包装: 1
传感器类型: 磁性,线性位置
接口: USB/串行
电源电压: 3.3V,5V
嵌入式: 是,MCU,8 位
已供物品:
已用 IC / 零件: AS5311
AS5311
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
8.5 AS5311 Off-axis Rotary Applications
The AS5311 can also be used as an off-axis rotary encoder, as shown in Figure 11 . In such applications, the multi-pole magnetic strip is replaced
by a multi-pole magnetic ring. The ring can have radial or axial magnetization.
Figure 16. Angular Resolution and Maximum Speed vs. Ring Diameter
AS5311 off-axis rotary resolution & speed
160000
700
140000
120000
resolution
speed rpm
600
500
100000
400
80000
300
60000
40000
20000
200
100
0
20
40
60
80
100
0
ring diameter [mm]
In off-axis rotary applications, very high angular resolutions are possible with the AS5311.
The number of steps per revolution increases linearly with ring diameter.
Due to the increasing number of pulses per revolution, the maximum speed decreases with increasing ring diameter.
Example: A magnetic ring with 41.7mm diameter has a resolution of 65536 steps per revolution (16-bit) and a maximum speed of 305 rpm.
Res [bit]
15
16
17
www.ams.com/AS5311
Steps per Revolution
32768
65536
131072
Ring Diameter [mm]
20.9
41.7
83.4
Revision 1.12
Maximum Speed [rpm]
609
305
152
23 - 29
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