H-38-11 Bourns Inc., H-38-11 Datasheet - Page 16

• Manufacturer Part Number: H-38-11
• Description: HDWR NUT MOUNTING FOR ECW ENCODR
• Manufacturer: Bourns Inc.
• Type: Mounting Nutr
• Series: Hr

Specifications of H-38-11

• Mounting Hole Size: 9 mm
• Features: Hardware indicated by shaded area is normally supplied with unit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ECW1DB24BC0024 - ENCODER DIGITAL CONT 24 CPRECW1JB24BC0024 - ENCODER DIGITAL CONT 24 CPR
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Encoders
Selecting an Encoder
With Sensors and Controls offering more than 10
different models of encoders, we have one to fit 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.
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:
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.
• Identifying direction of rotation
• Detecting angular position
• Up/down counting
• Sensing speed of rotation
• Pulse generation
• Switching
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
Rotary encoders are physically
Incremental Encoders, Digital Panel
Controls, Bit Switches, Gray Code
Switches and Digital Switches.
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
classifications of encoders: contacting (mechanical)
and non-contacting. Your application will dictate the
type of technology that will be best suited for your
design.
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.
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.
Non-Contacting Technology
Non-contacting encoders can be constructed
from four different types of technologies:
three major components in their
optical, inductive, capacitive and
magnetic. Optical encoders contain
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