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| 型号： | 12216 |
| 厂商： | NVE Corp/Sensor Products |
| 文件页数： | 123/145页 |
| 文件大小： | 0K |
| 描述： | MAGNET 6MM DIA X 4 MM THICK |
| 标准包装： | 25 |
| 系列： | * |
| 其它名称： | Q7078272B |
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Application Notes
The same analysis was performed on the seven 0.010" wide traces of the same thickness. A voltage of
8.06V was again applied and the resulting graph is shown below in the figure below.
AA003-02 over seven 0.010" wide
0.0023" thick traces
194
192
190
188
186
184
182
180
178
176
174
mV Out = 177.74 ± 0.06(A)
@8.06V
0
0.02
0.04
0.06
0.08
0.1
0.12
Current (A)
Seven traces were run under the part so that the magnetic fields from the seven traces are additive at
the sensor thus getting a much higher output with less applied current. To a first-order approximation,
theory predicts that the field will be increased seven fold from just a single trace. The sensitivity from
the single trace above is 3.7 mV/V/A; seven times this is 25.9 mV/V/A, which is not quite achieved.
This discrepancy is due to the different current distributions. The loss would not be as extreme if seven
times the current went through the single trace.
Resolution
Resolution is a function of environmental noise. By shielding, amplifying, and filtering, the low limit
and usable resolution can be greatly increased. The data for the analysis done here was with a “raw”
setup, no amplification or filtering. In a zero gauss chamber, single microamps were detected but the
measurement equipment limited any in-depth analysis.
Effects of Biasing
For the analysis done above, a small ceramic magnet was used to supply a magnetic bias field in a
direction which is parallel to the sensitive axis of the sensor. This magnetic bias “pushes” the output to
a certain value, which is now a “psuedo zero” field point. The magnetic field from a current carrying
conductor is also directional. If a current flows in such a direction as to add to the biasing field, the
output from the sensor will increase. Likewise, if a current flows in the opposite direction, its resultant
field will subtract from the biasing field, and the output will decrease. This directionality can be seen
by looking at the output slopes of the previous two graphs. In the first graph, the output displayed
shows the current produced a field opposite to the biasing magnetic field. Thus showing as the current
increases, the output of the sensor decreases. In the same respect, the second graph shows that the field
from the current was in the same direction as the biasing field.
- 123 -
www.nve.com phone: 952-829-9217 fax: 952-829-9189
相关PDF资料 |
PDF描述 |
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| 123-5863-12-163 | LED BASE MINI PNL IND OIL TIGHT |
| 1230-100A-3L | SENSOR PRES 100PSIA 0-50MV 8-DIP |
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| 1240-015D-3L | SENSOR PRES 15PSID 0-50MV 8-DIP |
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相关代理商/技术参数 |
参数描述 |
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| 12-216 | 制造商:GC Electronics 功能描述:NEEDLE NOSE PLIERS; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No ;RoHS Compliant: No 制造商:GC Electronics 功能描述:Needle Nose Pliers |
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| 12-2160 | 制造商:GC Electronics 功能描述:REPLACEMENT TIP FOR 12-2157 制造商:GC Electronics 功能描述:TOOLS, DESOLDERING; For Use With:12-2157 Soldering Iron ;RoHS Compliant: Yes 制造商:GC Electronics 功能描述:Replacement Tips For 12-2157 |
| 1221-6001 | 功能描述:RF 连接器 SMP FML FLOAT MNT S/R .047 .093 PNL RoHS:否 制造商:Bomar Interconnect 产品:Connectors 射频系列:BNC 型式:Jack (Female) 极性: 触点电镀:Gold 阻抗: 端接类型:Solder 主体类型:Straight Bulkhead 电缆类型: |
| 122160-11 | 功能描述:TNC Connector Jack, Female Socket 50 Ohm Panel Mount, Bulkhead - Front Side Nut Solder 制造商:amphenol-rf division 系列:- 包装:散装 零件状态:有效 连接器样式:TNC 连接器类型:插孔，母形插口 触头端接:焊接 保护端接:压接 阻抗:50 欧姆 安装类型:面板安装，隔墙式（前端螺母） 电缆组:RG-58， 58A， 58B， 58C， 141， 303， LMR-195， Belden B7806A， 9907 紧固类型:有螺纹 频率 - 最大值:11GHz 特性:热缩管 外壳颜色:银 侵入防护:IP67 - 防尘，防水 基体材料:黄铜 基体表面:镍 中心触头材料:磷青铜 中心触头镀层:金 介电材料:聚四氟乙烯（PTFE） 额定电压:500V 工作温度:-65°C ~ 165°C 标准包装:100 |
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