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參數(shù)資料
| 型號(hào)： | ATS610LSC |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | DYNAMIC, PEAK-DETECTING, DIFFERENTIAL HALL-EFFECT GEAR-TOOTH SENSOR |
| 中文描述： | 動(dòng)態(tài)，峰值檢測(cè)，差分霍爾效應(yīng)齒輪齒傳感器 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大小： | 182K |
| 代理商： | ATS610LSC |
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ATS610LSA
AND
ATS611LSB
DYNAMIC, PEAK-DETECTING,
DIFFERENTIAL HALL-EFFECT
GEAR-TOOTH SENSORS
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
10
DEVICE DESCRIPTION — Continued
Differential vs. Single-Element Sensing.
The differen-
tial Hall-element configuration is superior in most applica-
tions to the classical single-element gear-tooth sensor.
The single-element configuration commonly used
(Hall-effect sensor mounted on the face of a simple
permanent magnet) requires the detection of a small
signal (often <100 G) that is superimposed on a large
back-biased field, often 1500 G to 3500 G. For most
gear/target configurations, the back-biased field values
change due to concentration effects, resulting in a varying
baseline with air gap, with valley widths, with eccentrici-
ties, and with vibration. The differential configuration
cancels the effects of the back-biased field and avoids
many of the issues presented by the single Hall element.
NOTE — 10 G = 1 mT, exactly.
Peak-Detecting vs. AC-Coupled Filters.
High-pass
filtering (normal ac coupling) is a commonly used tech-
nique for eliminating circuit offsets. AC coupling has
errors at power up because the filter circuit needs to hold
the circuit zero value even though the circuit may power
up over a large signal. Such filter techniques can only
perform properly after the filter has been allowed to settle,
which is typically greater than one second. Also, high-
pass filter solutions cannot easily track rapidly changing
baselines such as those caused by eccentricities. Peak
detection switches on the change in slope of the signal
and is baseline independent at power up and during
running.
Track-and-Hold Peak Detecting vs. Zero-Crossing
Reference.
The usual differential zero-crossing sensors
are susceptible to false switching due to off-center and
tilted installations, which result in a shift in baseline that
changes with air gap. The track-and-hold peak-detection
technique ignores baseline shifts versus air gaps and
provides increased immunity to false switching. In addi-
tion, using track-and-hold peak-detecting techniques,
increased air gap capabilities can be expected because a
peak detector utilizes the entire peak-to-peak signal range
as compared to zero-crossing detectors that switch on
fixed thresholds.
NOTE — “Baseline” refers to the zero-gauss differen-
tial where each Hall-effect element is subject to the
same magnetic field strength.
Differential flux maps vs. air gaps
Single-element flux maps
showing the impact of varying valley widths
10
20
30
60
1500
-1500
ANGLE OF TARGET ROTATION IN DEGREES
1000
-500
-1000
0
Dwg. GH-061
D
0
500
T A
°
C
50
40
TARGET
AIR GAP = 2.5 mm
AIR GAP = 2.0 mm
AIR GAP = 1.5 mm
AIR GAP = 0.5 mm
AIR GAP = 1.0 mm
10
20
30
60
-2000
-5000
ANGLE OF TARGET ROTATION IN DEGREES
-2500
-4000
-4500
0
Dwg. GH-061-1
S
-3500
-3000
T A
°
C
50
40
TARGET
AIR GAP = 0.5 mm
AIR GAP = 1.0 mm
AIR GAP = 1.5 mm
AIR GAP = 2.5 mm
AIR GAP = 2.0 mm
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ATS611LSB | Dynamic, Peak-Detecting,Differential Hall-Effect Gear-Tooth Sensor(動(dòng)態(tài)，峰值檢測(cè)，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 |
| ATS612LSG | 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 |
|---|---|
| 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(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)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(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)目的:Express-HRR |
| ATS-61270R-C1-R0 | 功能描述:散熱片 FANSINK ASSY 26.25 X 26.25 X 19.5 (MM) RoHS:否 制造商:Ampro By ADLINK 產(chǎn)品:Heat Sink Accessories 安裝風(fēng)格:Through Hole 散熱片材料: 散熱片樣式: 熱阻: 長(zhǎng)度: 寬度: 高度: 設(shè)計(jì)目的:Express-HRR |
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