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参数资料
| 型号： | H-38-11 |
| 厂商： | Bourns Inc. |
| 文件页数： | 16/73页 |
| 文件大小： | 0K |
| 描述： | HDWR NUT MOUNTING FOR ECW ENCODR |
| 产品变化通告： | H-38-11 Hardware Change 26/Jul/2010 |
| 标准包装： | 1,000 |
| 产品目录页面： | 2575 (CN2011-ZH PDF) |
| 配用： | ECW1DB24BC0024-ND - ENCODER DIGITAL CONT 24 CPR ECW1JB24BC0024-ND - ENCODER DIGITAL CONT 24 CPR |
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Encoders
Selecting an Encoder
With Sensors and Controls offering more than 10
different models of encoders, we have one to ?t your
applications needs. Providing the industry with both
contacting and non-contacting encoders, Bourns is
recognized worldwide for supplying standard and
custom encoder solutions and providing excellent
technical support.
Important Characteristics
In selecting an encoder for your application, the
most important characteristics to consider are the
type of technology, type of output signal, speed of
rotation, expected cycle life and switching capability
of the product. There are two basic technology
classi?cations of encoders: contacting (mechanical)
and non-contacting. Your application will dictate the
type of technology that will be best suited for your
design.
An encoder is a rotary or linear device that
detects or senses a change in position
resulting in a digital signal output.
These devices are also known as
Incremental Encoders, Digital Panel
Controls, Bit Switches, Gray Code
Switches and Digital Switches.
Rotary encoders are physically
similar in appearance to a potentiometer. However,
the electrical function of an encoder is different than
a potentiometer. Encoders are used in applications
from car radios to automatic door openers as
position sensing digital switches. Some of the
functions that the Bourns? encoders can be used for
are:
? Identifying direction of rotation
? Detecting angular position
? Up/down counting
? Sensing speed of rotation
? Pulse generation
? Switching
An advantage of using encoders over potentiometers
in a digital circuit is that the signal produced by an
encoder eliminates the analog-to-digital (A/D)
conversion process. This approach can reduce
memory overhead, wiring and wiring interconnects,
and can provide greater MPU program speed.
Contacting Technology
Contacting encoders have two major
components in their construction:
the coded element and a
contacting sensor or wiper.
Movement of the wiper over a
coded element emulates a
mechanical switching action, producing a
digital output signal. This type of technology offers
the most cost-effective solution for your application.
However, resolution and rotational life are
limitations of contacting designs. Bourns offers a
variety of contacting encoder models suited for low
cost applications.
Non-Contacting Technology
Non-contacting encoders can be constructed
from four different types of technologies:
optical, inductive, capacitive and
magnetic. Optical encoders contain
three major components in their
construction: a light source, a code disk, and a
detector. Resolution and life are much higher than
the contacting technology. Optical encoders can be
used in both static and dynamic applications. This
type of encoder offers a midrange priced solution for
your application. Magnetic encoders contain three
major components in their construction: a coil, a
magnet, and a sensor. Magnetic encoders can operate
in very high-speed and high temperature
applications. However, resolution is limited for an
equivalent sized optical encoder package. This type
of encoder is used in dynamic applications only and
is a high priced component. Bourns offers optical
encoders suitable for your applications.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| H-381-14 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0330 |
| H-381-38 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0331 制造商:Molex 功能描述:Ring Tongue Terminal (1/0)AWG 48.77mm 21.34mm Electro-Tin Bag |
| H-38-14 | 功能描述:电位计工具及硬件 H-038 HARDWARE RoHS:否 制造商:Vishay/Spectrol 产品:Adapter Kit |
| H-38-15 | 功能描述:电位计工具及硬件 HARDWARE - NUT RoHS:否 制造商:Vishay/Spectrol 产品:Adapter Kit |
| H-381-56 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0333 |
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