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| 型号： | AG920-07 |
| 厂商： | NVE Corp/Sensor Products |
| 文件页数： | 121/145页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION GT SENSOR |
| 标准包装： | 1 |
| 传感器类型： | 磁性 GMR（大型磁阻传感） |
| 接口： | 模拟 |
| 嵌入式： | 否 |
| 已供物品： | 9 个板，CD，磁体，样品，焊膏 |
| 已用 IC / 零件： | ABL 和 AKL 系列 GT 传感器 |
| 相关产品： | 391-1058-5-ND - SENSOR GEAR TOOTH DUAL 8MSOP 391-1057-5-ND - SENSOR GEAR TOOTH DUAL 8MSOP 391-1056-5-ND - SENSOR GEAR TOOTH SINGLE 8MSOP 391-1055-5-ND - SENSOR GEAR TOOTH SINGLE 8MSOP 391-1036-5-ND - SENSOR GEAR TOOTH DUAL 8MSOP 391-1035-5-ND - SENSOR GEAR TOOTH DUAL 8MSOP 391-1034-5-ND - SENSOR GEAR TOOTH SINGLE 8MSOP 391-1033-5-ND - SENSOR GEAR TOOTH SINGLE 8MSOP |
| 其它名称： | 391-1022 |
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Application Notes
Another magnetic contribution to the error can be overcome by an initialization current. Often,
depending on the magnetic history (hysteresis) of the sensor, the initial outputs are different from
subsequent outputs as seen in the figure below:
Initialization of AA003-02
300
250
200
150
100
50
Initial sweep
Series2
Series3
Series4
Series5
Series6
0
0
2
4
6
8
10
Current (A)
The initial sweep data has deviated from the other series of current sweeps. After the first sweep was
completed, the subsequent five sweeps fell right on each other. This shows that a lower error can be
obtained by “initializing” the sensor. After initialization, the error will be much lower until the
working current range is exceeded in either direction. Saturation of the device (currents in the 20A
range) as well as changing the applied current direction will increase the hysteresis/error.
For currents of approximately 2 Amps and smaller, the output repeatability is nominally 2% while
higher currents produce output repeatability errors of less than 1%. Low current measurements of an
initial current sweep may exceed 15% error in repeatability.
DATA ANALYSIS- Low Current Sensing
The low current analysis is handled here separately from the higher current analysis due to special
considerations that must be made, although much of the same hysteresis and resolution considerations
from high field sensing apply here. For low current sensing, two configurations of 0.010" wide traces
were used. The first analysis will be with an AA003-02 sensor over a single 10-mil trace and the
second analysis will consist of an AA003-02 sensor over seven 10-mil traces. With these traces,
milliamp and sub-milliamp currents are of interest. Due to the hysteresis at low currents as discussed
above, a biasing magnet was used to set the parts to approximately half of their linear range, or
approximately 20 mV/V. This bias point can be seen as the Y intercept in the figures below. In this
way, the output will not be near the natural zero current range, and thus, repeatability is increased.
With this configuration an alternating sense current will produce a bipolar output with a DC offset in
an AC application.
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www.nve.com phone: 952-829-9217 fax: 952-829-9189
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相关代理商/技术参数 |
参数描述 |
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| AG920-07E | 功能描述:KIT EVALUATION GT SENSOR RoHS:是 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:- |
| AG921-07E | 功能描述:AKL002-12E - Magnetic, GMR (Giant Magnetoresistive) Sensor Evaluation Board 制造商:nve corp/sensor products 系列:- 零件状态:有效 传感器类型:磁性，GMR（大型磁阻传感） 感应范围:- 接口:模拟 灵敏度:- 电压 - 电源:- 嵌入式:- 所含物品:板 使用的 IC/零件:AKL002-12E 标准包装:1 |
| AG930-07E | 制造商:NVE Corporation 功能描述:TMR ANGLE SENSOR EVAL BOARD 制造商:NVE Corporation 功能描述:EVAL BOARD, AAT001-10E ANGLE SENSOR; Silicon Manufacturer:NVE; Silicon Core Number:AAT001-10E; Kit Application Type:Sensing - Magnetic, Compass; Application Sub Type:Magnetic Sensor; Kit Contents:Eval Board AAT001-10E |
| AG931-07E | 功能描述:AAT003-10E - Magnetic, Rotary Position Sensor Evaluation Board 制造商:nve corp/sensor products 系列:- 零件状态:新产品 传感器类型:磁性，旋转位置 感应范围:- 接口:模拟 灵敏度:- 电压 - 电源:1.5 V ~ 5.5 V 嵌入式:- 所含物品:板 使用的 IC/零件:AAT003-10E 标准包装:1 |
| AG932-07E | 功能描述:ADT001-10E, ADT002-10E - Magnetic, Rotary Position Sensor Evaluation Board 制造商:nve corp/sensor products 系列:- 零件状态:在售 传感器类型:磁性，旋转位置 感应范围:- 接口:模拟 灵敏度:- 电压 - 电源:2.4 V ~ 5.5 V 嵌入式:- 所含物品:板，磁铁 使用的 IC/零件:ADT001-10E，ADT002-10E 标准包装:1 |
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