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| 型號： | ort233 |
| 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)） |
| 文件頁數(shù)： | 13/145頁 |
| 文件大?。?/td> | 729K |
| 代理商： | ORT233 |
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11
REED SWITCH
1
GENERAL DESCRIPTION
to organic contamination. Thus, it became pos-
sible to manufacture reed switches with stabi-
lized contact resistance. This original technol-
ogy was awarded the highest award (Schneider
Award) at the 21st Annual National Relay
Conference.
Furthermore, we received the Schneider
Awards at the 36th and 38th Annual National
Relay Conferences for research into reed switch
contact phenomena. Our engineering and tech-
nology capabilities are evaluated highly.
1.
Reed Switch Characteristics
Reed switch characteristics are discussed
below.
(1) Reed switches are hermetically sealed
within a glass tube with inert gas and
do not receive any influence from the
external atmospheric environment.
(2) Quick response because of small mass
of moving parts
(3) The structure comprises the operat-
ing parts and electrical circuits ar-
ranged coaxially. Reed switches are
suited to applications in radio fre-
quency operation.
(4) Reed switches are compact and light
weight.
(5) Superior corrosion resistance and wear
resistance of the contacts assures stable
switching operation and long life.
(6) With a permanent magnet installed,
reed switches economically and eas-
ily become proximity switches.
GENERAL DESCRIPTION
The reed switch was invented by Dr. W. B.
Ellwood at Bell Telephone Laboratories in 1936.
The first application was made during 1938
when the reed switch was used as a selector
switch in a coaxial carrier equipment. Later,
improvements of the reed switches were made
in parallel with the development of the tele-
communications technology. At the same time,
the advantages of reed switches such as the
speedy response time, hermetically sealed con-
tacts, compact size and long mechanical life
have contributed greatly to the development
of telecommunications technology.
From 1956, when research and development
on reed switches began in Japan, innovations
have been made in improving contact perfor-
mance, reducing overall size, improving manu-
facturing methods and reducing manufactur-
ing cost. In addition to applications in switch-
ing systems, broad applications have been
developed as sensors and controllers in auto-
mobile electrical devices, reed relays, and other
instruments of various types.
Our reed switches of extremely superior qual-
ity are manufactured based on our own origi-
nal technology for deactivating contact sur-
faces, high performance automatic sealing
equipment and contact resistance measure-
ment technology which uses magnetic flux
scaninng tests (FS method).
In particular, our process for deactivating con-
tact surfaces takes the fatal problem of the
conventional rhodium contact reed switch and
suppresses increases in contact resistance due
2.
Applications
Various rotation detectors
Temperature detector
Hydraulic pressure equipment
Data terminal equipment
Answer phone
Ordinary control system
Various types of digital equipment
Digital circuit
Radio frequency relay
Reed switch
Rotation detector
Proximity switch
Key switch
Switching system
Automation
Inspection
Others
Others
Permanent magnet
Energized coil
Reed relay
Toys
Float switch
Facsimile
Consumer electronics equipment
Automatic balance
Electronic switching system
Automatic measuring instruments
E2R0006-37-21
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