參數(shù)資料
型號(hào)： HEDS-9741Q50
廠商： AGILENT TECHNOLOGIES INC
元件分類： 編、解碼器及復(fù)用、解復(fù)用
英文描述： SINGLE, 2 CHANNELS, ROTARY/LINEAR OPTICAL POSITION ENCODER
文件頁數(shù)： 1/7頁
文件大?。?/td> 261K
代理商： HEDS-9741Q50
Features
Small size
Low cost
Multiple mounting options
Wide resolution range
Linear and rotary options available
No signal adjustment required
Insensitive to radial and axial play
–40
°C to +85°C operating
temperature
High resolution version of the
HEDS-970x
Two-channel quadrature output
TTL or 5.0 V CMOS compatible
Single 5 V supply
Wave solderable
Integrated 2.5 K
pullup on outputs
Description
The HEDS-974x series is a high
performance, low cost, optical
incremental encoder module. When
operated in conjunction with either
a codewheel or codestrip, this
module detects rotary or linear
position. The module consists of a
lensed LED source and a detector
IC enclosed in a small C-shaped
plastic package. Due to a highly
collimated light source and a
unique photodetector array, the
module is extremely tolerant to
mounting misalignment.
The two-channel digital outputs and
5 V supply input are accessed
through four solder-plated leads
located on 2.54 mm (0.1 inch)
centers.
The standard HEDS-974x is
designed for use with an 11 mm
optical radius codewheel, or linear
codestrip. Other options are
available. Please contact factory for
more information.
Applications
The HEDS-974x provides
sophisticated motion detection at a
low cost, making close-loop control
very cost-competitive! Typical
Agilent HEDS-974x Series
for 180, 300, 360 LPI Small Optical
Encoder Modules
Data Sheet
applications include printers,
plotters, copiers, and office
automation equipment.
Theory of Operation
The HEDS-974x is a C-shaped
emitter/detector module. Coupled
with a codewheel, it translates
rotary motion into a two-channel
digital output. Coupled with a
codestrip, it translates linear
motion into digital outputs.
As seen in the block diagram, the
module contains a single Light
Emitting Diode (LED) as its light
source. The light is collimated
into a parallel beam by means of
a single lens located directly over
the LED. Opposite the emitter is
the integrated detector circuit.
This IC consists of multiple sets
of photodetectors and the signal
processing circuitry necessary to
produce the digital waveforms.
The codewheel/codestrip moves
between the emitter and detector,
causing the light beam to be
interrupted by the pattern of
spaces and bars on the codewheel/
codestrip. The photodiodes which
detect these interruptions are
arranged in a pattern that
corresponds to the radius and
count density of the codewheel/
codestrip. These detectors are also
spaced such that a light period on
one pair of detectors corresponds
to a dark period on the adjacent
pair of detectors. The photodiode
outputs are fed through the signal
processing circuitry. Two
comparators receive these signals
and produce the final outputs for
channels A and B. Due to this
integrated phasing technique, the
digital output of channel A is in
quadrature with channel B (90
degrees out of phase).
ESD WARNING: NORMAL PRECAUTIONS SHOULD BE TAKEN TO AVOID STATIC DISCHARGE.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HEDS-9780#A50 功能描述:編碼器 2 Channel 500CPR RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動(dòng)器數(shù)量: 通道數(shù)量:2 安裝風(fēng)格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
HEDS-9780#G50 功能描述:編碼器 2 Channel 360CPR RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動(dòng)器數(shù)量: 通道數(shù)量:2 安裝風(fēng)格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
HEDS-9780#G54 功能描述:編碼器 2 Channel 360CPR RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動(dòng)器數(shù)量: 通道數(shù)量:2 安裝風(fēng)格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
HEDS-9780#H50 功能描述:編碼器 2 Channel 400CPR RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動(dòng)器數(shù)量: 通道數(shù)量:2 安裝風(fēng)格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
HEDS-9781#H50 功能描述:編碼器 2 Channel 400CPR RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動(dòng)器數(shù)量: 通道數(shù)量:2 安裝風(fēng)格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
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