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| 型號(hào)： | ord234 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Reed Switch(舌簧開關(guān)) |
| 中文描述： | 干簧（舌簧開關(guān)） |
| 文件頁(yè)數(shù)： | 14/145頁(yè) |
| 文件大?。?/td> | 729K |
| 代理商： | ORD234 |
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12
REED SWITCH
1
3.
As shown in Figure 3.1, the reed switches
comprise two ferromagnetic reeds placed with
a gap in between and hermetically sealed in a
glass tube. The glass tube is filled with inert gas
to prevent the activation of the contacts. The
surfaces of the reed contacts are plated with
rhodium.
Structure and Operating Principles
Basic reed switch structure
As shown in Figure 3.2, the reed switch is
operated by the magnetic field of an energized
coil or a permanent magnet which induces
north (N) and south (S) poles on the reeds. The
reed contacts are closed by this magnetic at-
tractive force. When the magnetic field is re-
moved, the reed elasticity causes the contacts
to open the circuit.
Glass tube
Inert gas
Lead
Reed contact
Make type
Magnetic flux
Energized coil
S
N
S
N
Normally closed
(N.C) reed
Common
(COM) reed
Normally open
(N.O) reed
N
S
Magnetic flux
S
N
(N)
N
S
S
N
N
S
Permanent magnet
Figure 3.1
The changeover type reed switch is normally
ON, due to mechanical bias of the common
(COM) reed, which is between the normally
closed (N.C) reed contact and the normally
open (N.O) reed contact.
When an external magnetic field is induced,
the N.C blade is not affected because it is non-
magnetic but the COM reed is attracted by the
N.O reed and moves. When the magnetic field
is removed, COM reed again moves to the N.C
reed by mechanical bias.
GENERAL DESCRIPTION
Figure 3.2
Glass tube
Normally closed
(N.C) reed
Common (COM) reed
reed contact
Normally open
(N.O) reed
Inert gas
Changeover type
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ORT82G5 | ORCA ORT82G5 1.0.1-25/2.0-2.5/3.125 Gbits/s Backplane Interface FPSC |
| ORT8850 | Field-Programmable System Chip (FPSC) Eight-Channel x 850 Mbits/s Backplane Transceiver |
| ORT8850H | Field-Programmable System Chip (FPSC) Eight-Channel x 850 Mbits/s Backplane Transceiver |
| ORT8850L | Field-Programmable System Chip (FPSC) Eight-Channel x 850 Mbits/s Backplane Transceiver |
| OS1001 | Interface IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ORD234/20-30 AT | 功能描述:磁性/簧片開關(guān) 1 Form A 21mm AT 2030 OKI RoHS:否 制造商:MEDER electronic (Standex) 開關(guān)類型:Reed 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)額定值:10 VA 操作范圍:10 At to 50 At 工作間隙: 磁鐵類型: 顏色: 端接類型:Axial 封裝:Bulk |
| ORD311 | 制造商:OKI Semiconductor 功能描述: |
| ORD311/10-15 AT | 功能描述:磁性/簧片開關(guān) 1 Form A 7mm AT1015 OKI RoHS:否 制造商:MEDER electronic (Standex) 開關(guān)類型:Reed 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)額定值:10 VA 操作范圍:10 At to 50 At 工作間隙: 磁鐵類型: 顏色: 端接類型:Axial 封裝:Bulk |
| ORD311-1015 | 功能描述:磁性/簧片開關(guān) Reed Switch, 1 Form A, SPST-NO, 7mm, Iridium Contacts, AT1015 OKI RoHS:否 制造商:MEDER electronic (Standex) 開關(guān)類型:Reed 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)額定值:10 VA 操作范圍:10 At to 50 At 工作間隙: 磁鐵類型: 顏色: 端接類型:Axial 封裝:Bulk |
| ORD312 | 制造商:MEDER 制造商全稱:Meder Electronic 功能描述:REED SWITCH |
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