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參數(shù)資料
| 型號： | ATS610LSA |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | DYNAMIC, PEAK-DETECTING, DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSORS |
| 中文描述： | 動態(tài)，峰值檢測，差分霍爾效應(yīng)齒輪齒傳感器 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 182K |
| 代理商： | ATS610LSA |
ATS610LSA
AND
ATS611LSB
DYNAMIC, PEAK-DETECTING,
DIFFERENTIAL HALL-EFFECT
GEAR-TOOTH SENSORS
11
www.allegromicro.com
APPLICATIONS INFORMATION
Gear Diameter and Pitch.
Signal frequency is a direct
function of gear pitch and rotational speed (RPM). The
width of the magnetic signal in degrees and, hence, the
signal slope created by the tooth is directly proportional to
the circumference of the gear (
π
Do). Smaller diameters
limit the low-speed operation due to the slower rate of
change of the magnetic signal per degree of gear rotation
(here the limitation is the droop of the capacitor versus the
signal change). Larger diameters limit high-speed opera-
tion due to the higher rate of change of magnetic signal
per degree of rotation (here the limitation is the maximum
charge rate of the capacitor versus the rate of signal
change). These devices are optimized for a 50 mm gear
diameter (signal not limited by tooth width), 0.33
μ
F
capacitor, and speeds of 10 RPM to 8000 RPM. For very
large diameter gears (diameter >200 mm), the devices
must be configured with a lower value capacitor, but not
less than 0.1
μ
F. This allows for a range of 5:1 in gear
diameters.
NOTE — In application, the terms “gear” and “target” are
often interchanged. However, “gear” is preferred when
motion is transferred.
Air Gap and Tooth Geometry.
Operating
specifications
are impacted by tooth width (T), valley width (pc - T) and
depth (ht), gear material, and gear face thickness (F). The
target can be a gear or a specially cut shaft-mounted tone
wheel made of stamped ferrous metal. In general, the
following gear or target guidelines must be followed to
achieve greater than 2 mm air gap from the face of unit:
Tooth width, T.............................. >2 mm
Valley width, pc - T ...................... >2 mm
(Whole) depth, ht......................... >3 mm
Gear material............................... low-carbon steel
Gear face width (thickness), F .... >3 mm
Deviation from these guidelines will result in a reduc-
tion of air gap and a deterioration in timing accuracy. For
applications that require the sensing of large-tooth targets,
the optimal sensor choice is the ATS610LSA. Here, the
higher switching thresholds provide increased immunity to
false switching caused by magnetic overshoot and other
non-uniformities in the gear or target. For applications
that require the sensing of a target with a repetitive target
structure
(valley width less than 5 mm), the optimal sensor
choice is the ATS611LSB. Here, the lower switching
thresholds make the device more sensitive to magnetic
field changes and will provide larger operating air gaps.
Operation with Fine-Pitch Gears.
For targets with a
circular pitch of less than 4 mm, a performance improve-
ment can be observed by rotating the front face of the
sensor module. This sensor rotation decreases the
effective sensor-to-sensor spacing and increases the
capability of detecting fine tooth or valley configurations,
provided that the Hall elements are not rotated beyond the
width of the target.
A
Dwg. MH-018-1 mm
A
2.235
α
TARGET FACE WIDTH, F
>2.235 SIN
α
2
α
continued next page…
Signal Timing Accuracy.
The magnetic field profile
width is defined by the sensor element spacing and
narrows in degrees as the target diameter increases. This
results in improved timing accuracy performance for larger
gear diameters (for the same number of gear teeth). The
slope of this magnetic profile also changes with air gap,
resulting in timing accuracy shift with air gap (refer to
typical operating characteristic curves). Valley-to-tooth
transitions will generally provide better accuracy than
tooth-to-valley transitions for large-tooth or large-valley
configurations. For highest accuracy, targets greater than
100 mm in diameter should be used.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ATS610LSC | DYNAMIC, PEAK-DETECTING, DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR |
| ATS611LSB | Dynamic, Peak-Detecting,Differential Hall-Effect Gear-Tooth Sensor(動態(tài)，峰值檢測，差分霍爾效應(yīng)齒輪嚙合傳感器) |
| ATS611 | TRUE ZERO-SPEED, HALL-EFFECT ADAPTIVE GEAR-TOOTH SENSOR |
| ATS660LSB | TRUE ZERO-SPEED, HALL-EFFECT ADAPTIVE GEAR-TOOTH SENSOR |
| ATS612LSB | DYNAMIC, SELF-CALIBRATING, PEAK-DETECTING, DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATS610LSC | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:ZERO-SPEED, SELF-CALIBRATING, NON-ORIENTED, HALL-EFFECT GEAR-TOOTH SENSOR |
| ATS611 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:TRUE ZERO-SPEED, HALL-EFFECT ADAPTIVE GEAR-TOOTH SENSOR |
| ATS611LSB | 制造商:Allegro MicroSystems LLC 功能描述:Hall Effect Sensor 25mA 4-Pin SIP Module(SB) |
| ATS-61270D-C1-R0 | 功能描述:散熱片 FANSINK ASSY 26.25X26.25X9.5 (MM) RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長度: 寬度: 高度: 設(shè)計目的:Express-HRR |
| ATS-61270K-C1-R0 | 功能描述:散熱片 FANSINK ASSY 26.25 X 26.25 X 14.5 (MM) RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長度: 寬度: 高度: 設(shè)計目的:Express-HRR |
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