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參數(shù)資料
| 型號(hào)： | HEDS-9711 |
| 英文描述： | 200 lpi Analog Output Small Optical Encoder Modules |
| 中文描述： | 200低截獲概率模擬輸出小型光學(xué)編碼器模塊 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大小： | 256K |
| 代理商： | HEDS-9711 |
2
The module contains a single
Light Emitting Diode (LED) as its
light source. The light is colli-
mated into a parallel beam by
means of a single lens located
directly over the LED. Opposite
the emitter is the integrated de-
tector circuit. This IC consists of
multiple sets of photodetectors
and the signal processing cir-
cuitry necessary to produce the
analog waveforms.
The codewheel/codestrip moves
between the emitter and detector,
causing the light beam to be in-
terrupted by the pattern of spaces
and bars on the codewheel/
codestrip. The photodiodes which
detect these interruptions are
arranged in a pattern that corre-
sponds 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, which produces the
final outputs for channels A and
B. Due to this integrated phasing
technique, the analog output of
channel A is in quadrature with
channel B (90 degrees out of
phase).
Package Dimensions
See HEDS-9700 datasheet for
package outline drawings.
Definitions
Count (N)
: The number of bar
and window pairs or Counts Per
Revolution (CPR) of the code-
wheel, or the number of Lines Per
Inch (LPI) of the codestrip.
1 Shaft Rotation = 360 mechanical
degrees
= N cycles
1 cycle (c) = 360 electrical
degrees (
°
e)
= 1 bar and window pair
Pulse Width (P)
: The number of
electrical degrees that an output
is high during one cycle. This
value is nominally 180
°
e or 1/2
cycle.
Pulse Width Error (
P)
: The
deviation, in electrical degrees, of
the pulse width from its ideal
value of 180
°
e.
State Width (S)
: The number of
electrical degrees between a
transition in the output of channel
A and the neighboring transition
in the output of channel B. There
are four states per cycle, each
nominally 90
°
e.
State Width Error (
S)
: The
deviation, in electrical degrees, of
each state width from its ideal
value of 90
°
e.
Phase (
Φ
)
: The number of elec-
trical degrees between the center
of the high state of channel A and
the center of the high state of
channel B. This value is nomi-
nally 90
°
e for quadrature output.
Phase Error (
Φ
)
: The devia-
tion of the phase from its ideal
value of 90
°
e.
Direction of Rotation
: When
the codewheel rotates counter-
clockwise, as viewed looking
down on the module (so the
marking is visible), channel A will
lead channel B. If the codewheel
rotates in the opposite direction,
channel B will lead channel A.
Optical Radius (R
OP
)
: The
distance from the codewheel’s
center of rotation to the optical
center (O.C.) of the encoder
module.
Mounting Position (R
M
)
:
Distance from Motor Shaft center
of rotation to center of Alignment
Tab receiving hole.
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Temperature
Supply Voltage
Soldering Temperature
Symbol
T
S
T
A
V
CC
Min.
–40
15
–0.5
Max.
85
45
7
260
Units
°
C
°
C
V
°
C
Notes
t
≤
5 sec.
Recommended Operating Conditions
Parameter
Temperature
Supply Voltage
Count Frequency
Symbol
T
V
CC
Min.
15
4.8
Max.
45
5.2
8
Units
Notes
V
kHz
Ripple < 100 mV
p-p
(Velocity (rpm) x N) 60
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| HEDS-9711#R50 | 功能描述:編碼器 2 Channel 200CPR 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-9711#R51 | 功能描述:編碼器 2 Channel 200CPR 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-9711-150 | 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 |
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