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| 型号： | HMC2003 |
| 厂商： | Honeywell Microelectronics & Precision Sensors |
| 文件页数： | 3/4页 |
| 文件大小： | 0K |
| 描述： | SENSOR HYBRID MAGN 3 AXIS 20-DIP |
| 产品培训模块： | Magnetic Sensors |
| 标准包装： | 1 |
| 系列： | HMC |
| 轴： | X，Y，Z |
| 测量范围： | ±2 高斯 |
| 用于测量： | 磁场强度，方向 |
| 分辨率： | 40 µ高斯 |
| 类型： | 数字磁力计 |
| 封装/外壳： | 20-DIP 模块 |
| 接口： | 模拟 |
| 产品目录页面： | 2814 (CN2011-ZH PDF) |
| 其它名称： | 342-1011 |
HMC2003
GENERAL DESCRIPTION
Honeywell’s three axis magnetic sensor hybrid uses three permalloy magneto -resistive sensors and custom interface
electronics to measure the strength and direction of an incident magnetic field. These sensors are sensitive to magnetic
fields along the length, width, and height (X, Y, Z axis) of the 20-pin dual-in-line hybrid. Fields can be detected less than
40 microgauss and up to
2 gauss. Analog outputs are available for each X, Y and Z axis from the hybrid. With the
sensitivity and linearity of this hybrid, changes can be detected in the earth’s magnetic field to provide compass headings
or attitude sensing. The high bandwidth of this hybrid allows for anomaly detection of vehicles, planes, and other ferrous
objects at high speeds.
The hybrid is packaged on a small printed circuit board (1” by 0.75”) and has an on -chip +2.5 voltage reference that
operates from a single 6 to 15V supply. The hybrid is ideal for applications that require two- or three-axis magnetic
sensing and have size constraints and need a magnetic transducer (magnetometer) front- end. Note that the hybrid’s
resistor values will vary, or an abscense of some resistor components, is likely due to individual factory calibration.
Integrated with the sensor elements composed of wheatstone bridge circuits, are magnetically coupled straps that replace
the need for external field coils and provide various modes of operation. The Honeywell patented integrated field offset
straps (Xoff+ and Xoff-, etc.) can be used electrically to apply local magnetic fields to the bridges to buck, or offset an
applied incident field. This technique can be used to cancel unwanted ambient magnetic fields (e.g. hard-iron magnetism)
or in a closed loop field nulling measurement circuit. The offset straps nominally provide 1 gauss fields along the sensitive
axis per 48mA of offset current through each strap.
The HMC2 003’s magnetic sensors can be affected by high momentary magnetic fields that may lead to output signal
degradation. In order to eliminate this effect, and maximize the signal output, a magnetic switching technique can be
applied to the bridge using set/reset pins (SR+ and SR-) that eliminates the effect of past magnetic history. Refer to the
application notes that provide information on set/reset circuits and operation.
PINOUT DIAGRAM AND PACKAGE DRAWING
Symbol
Millimeters
Inches
Min
Max
Min
Max
A
A1
D
e
H
10.92
2.92
25.91
2.41
18.03
11.94
3.42
27.30
2.67
19.69
0.43
0.115
1.02
0.095
0.71
0.47
0.135
1.075
0.105
0.775
ORDER INFORMATION
Ordering Number
HMC2003
www.honeywell.com
Product
Three-Axis Magnetic Sensor Hybrid
3
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