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参数资料
| 型号： | AS5043 DB V2 |
| 厂商： | ams |
| 文件页数： | 26/37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
Figure 23: Example of Linearity Error over 360°
Linearity Error with Centered Magnet [degrees]
0.5
0.4
0.3
0.2
0.1
0
Err max
transition noise
-0.1
1
55
109 163 217 271 325 379 433 487 541 595 649 703 757 811 865 919 973
Err min
(1 sigma) in fast mode (pin MODE = high) and 0.03 degrees rms (1 sigma) in slow mode (pin MODE = low or open).
: statistically, 1 sigma represents 68.27% of readings,
-0.2
-0.3
-0.4
-0.5
18.3 Transition Noise
Transition noise is defined as the jitter in the transition between two steps.
Due to the nature of the measurement principle (Hall sensors + Preamplifier + ADC), there is always a certain degree of
noise involved.
This transition noise voltage results in an angular transition noise at the outputs. It is specified as 0.06 degrees rms
*1 *1
These values are the repeatability of an indicated angle at a given mechanical position.
The transition noise has different implications on the type of output that is used:
absolute output; SSI interface:
The transition noise of the absolute output can be reduced by the user by applying an averaging of readings. An
averaging of 4 readings will reduce the transition noise by 6dB or 50%, e.g. from 0.03°rms to 0.015°rms (1
sigma) in slow mode
analog output:
Ideally, the analog output should have a jitter that is less than one digit. In 360° mode, both fast or slow mode
may be selected for adequate low jitter.
In 180°, 90° or 45° mode, where the step sizes are smaller, slow mode should be selected to reduce the output
jitter.
*1
3 sigma represents 99.73% of readings.
18.4 High Speed Operation
18.4.1 Sampling Rate
The AS5043 samples the angular value at a rate of 10.42k samples per second (ksps) in fast mode and 2.61ksps in slow
mode.
Consequently, a new reading is performed each 96μs. (fast mode) or 384μs (slow mode).
At a stationary position of the magnet, this sampling rate creates no additional error.
Absolute Mode:
With the given sampling rates, the number of samples (n) per turn for a magnet rotating at high speed can be calculated
by
n =
60
rpm ? 96 μ s
for fast mode
www.austriamicrosystems.com
Revision 1.80
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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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