Introduction
The second purpose of the flux concentrators is to vary the sensitivity of the sensor element from
product to product. They work by forming a low reluctance path to the sensor elements placed between
them. NVE uses a “rule of thumb” formula to calculate the effect of the flux concentrators:
Field at sensor elements ? (Applied Field)(60%)(FC length / gap between FCs)
For the sensor shown in the previous photo, the length of each flux concentrator is 400 microns, and
the gap between the flux concentrators is 100 microns. Therefore, if the sensor is exposed to an applied
field of 10 Gauss, the actual field at the sensor element will be about (10 Gauss)(0.6)(400 microns /
100 microns), or 24 Gauss.
NVE uses this technique to provide GMR sensors with varying sensitivity to the applied magnetic
field. The following chart shows sensitivity ranges for some of NVE’s products. Sensitivity to the
magnetic field is indicated by the slope of each line:
400
350
300
250
AA002
200
150
AA004
100
AA005
50
0
-150
-100
-50
0
50
100
150
Applied Magnetic Field (Gauss)
Maximum signal output from such a sensor element is typically 350 mV at 100 Gauss with a 5V power
supply. This compares to an output of 5 mV under the same conditions for a Hall sensor element, and
100 mV for an AMR sensor.
-8-
www.nve.com phone: 952-829-9217 fax: 952-829-9189
相关PDF资料
AGN260S24 RELAY TELECOM DPDT 1A 24V
AGQ260S12 RELAY TELECOM DPDT 2A 12V
AHK22124 RELAY GEN PURPOSE DPDT 10A 24V
AHN210X1 RELAY GEN PURPOSE DPDT 5A 120V
AK-ATA-100-R CABLE ULTRA ATA HDD 100MBPS .46M
AK-AV100-R CABLE STEREO 3.5MM M-M 1.5M
AK-AV201-R CABLE RCA MALE-MALE 2.5M
AK-AV202-R CABLE RCA MALE-FEMALE 2.5M
相关代理商/技术参数
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
AG933-07E 功能描述:AAT009-10E - 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:AAT009-10E 标准包装:1
AG934-07E 功能描述:ATT101 ANGLE SENSOR EVAL KIT 制造商:nve corp/sensor products 系列:* 零件状态:在售 标准包装:1
AG940-07E 功能描述:AA006-00E, AD004-00E, ADL021-14E, ADV001-00E - Magnetic, GMR (Giant Magnetoresistive) 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,GMR(大型磁阻传感) 感应范围:- 接口:模拟和数字 灵敏度:- 电压 - 电源:- 嵌入式:- 所含物品:板,磁铁 使用的 IC/零件:AA006-00E,AD004-00E,ADL021-14E,ADV001-00E 标准包装:1