HJMAG803 three-axis high-precision weak magnetic measurement module
隐藏域元素占位
- Product Description
-
- Commodity name: HJMAG803 three-axis high-precision weak magnetic measurement module
- Commodity ID: 1311257992422379520
- 型号: HJMAG803
- 产品概述: HJMAG803 is a three-axis high-precision weak magnetic measurement module.
- 测量磁场范围 （B/gauss）: 1~4
- 基准电压输出（Vbias/V）: 2.495~2.505
- 分辨率（Vid/nT）: ±0.8
- 输出电压幅度[(OUTX/OUTY/OUTZ）/V)]: 8
- 静态电流 IS/mA: 30
- 尺寸[mm]: 42*20*9
- 工作温度[℃]: -55 to 150
HJMAG803 is a three-axis high-precision weak magnetic measurement module. This circuit consists of a constant current source, oscillation source, acceleration network, driving network, voltage doubling network, amplification network, synchronous demodulation network, integration network, feedback network, bias circuit, and temperature measurement circuit. It uses a magnetoresistive sensor circuit method to measure the geomagnetic field of the surrounding environment. The presence of the feedback network in the circuit makes it a closed-loop system. Therefore, compared to traditional magnetoresistive sensors, the HJMAG803 circuit has advantages such as high detection accuracy, high reliability, good stability, and high sensitivity. It has been widely used in navigation systems, orientation and magnetic strength measurement circuits, etc. It achieves mutual conversion between geomagnetic signals and voltage signals.
电特性
除非另有说明，VDD=+5V，TA=+25℃（屏蔽桶内的噪声±2nT，1nT≈0.033mV）
参数名称
符号
测试条件
规范值
单位
最小值
典型值
最大值
测量磁场范围
B
-0.8
+0.8
gauss
基准电压输出
Vbias
TA=+25℃
2.495
2.500
2.505
V
输出电压幅度
OUTX/OUTY/OUTZ
1
4
V
静态电流
IS
30
mA
线性度误
（±0.8gauss）
αVID
±0.8gauss
0.05
%满量程
分辨率
VID
8
nT
Key words:- HJMAG803
- 三轴高精度弱磁测量模块
- 地磁信号
- 电压信号
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