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參數資料
| 型號： | ATS643LSHTN-I1-T |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update |
| 中文描述： | 自校準，零的高速連續(xù)更新差動齒輪齒傳感器 |
| 文件頁數： | 10/16頁 |
| 文件大?。?/td> | 400K |
| 代理商： | ATS643LSHTN-I1-T |
Self-Calibrating, Zero-Speed Differential
Gear Tooth Sensor with Continuous Update
ATS643LSH
10
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
V
PROC
is directly proportional to the magnetic flux density, B,
induced by the target and sensed by the Hall elements. When
V
PROC
transitions through a switchpoint from the appropriate
higher or lower level, it triggers sensor switch turn-on and turn-
off. As shown in figure 3, when the switch is in the off state, as
V
PROC
rises through a certain limit, referred to as the
operate
point
, B
OP
, the switch toggles from off to on. When the switch is
in the on state, as V
PROC
falls below B
OP
to a certain limit, the
B
HYS(#1)
Pk
(#4)
Pk
(#5)
Pk
(#7)
Pk
(#9)
Pk
(#2)
Pk
(#3)
Pk
(#1)
Pk
(#6)
Pk
(#8)
V
P
(
B
RP(#1)
B
OP(#1)
B
RP(#2)
B
RP(#3)
B
OP(#3)
B
RP(#4)
B
OP(#4)
B
HYS(#4)
B
HYS(#3)
B
HYS(#2)
t+
V+
B
OP(#2)
(A) TEAG varying; cases such as
eccentric mount, out-of-round region,
normal operation position shift
(B) Internal analog signal, V
,
typically resulting in the sensor
0
360
Target Rotation (°)
Hysteresis Band
(Delimited by switchpoints)
V
P
V+
Larger
TEAG
Smaller
TEAG
Sensor
Target
Larger
TEAG
Target
Sensor
Smaller
TEAG
Smaller
TEAG
release point
, B
RP
, the switch toggles from on to off.
As shown in panel C of figure 4, threshold levels for the ATS643
switchpoints are established dynamically as function of the
peak input signal levels. The ATS643 incorporates an algorithm
that continuously monitors the system and updates the switch-
ing thresholds accordingly. The switchpoint for each edge is
determined by the detection of the previous two edges. In this
manner, variations are tracked in real time.
Figure 4. The Continuous Update algorithm allows the Allegro sensor to immediately interpret and adapt to significant variances in the magnetic field
generated by the target as a result of eccentric mounting of the target, out-of-round target shape, elevation due to lubricant build-up in journal gears, and
similar dynamic application problems that affect the TEAG (Total Effective Air Gap). The algorithm is used to dynamically establish and subsequently
update the device switchpoints (B
OP
and B
RP
). The hysteresis, B
HYS(#x)
, at each target feature configuration results from this recalibration, ensuring that
it remains properly proportioned and centered within the peak-to-peak range of the internal analog signal, V
PROC
.
As shown in panel A, the variance in the target position results in a change in the TEAG. This affects the sensor as a varying magnetic field, which
results in proportional changes in the internal analog signal, V
PROC
, shown in panel B. The Continuous Update algorithm is used to establish accurate
switchpoints based on the fluctuation of V
PROC
, as shown in panel C.
(C) Referencing the internal analog signal, V
PROC
, to continuously update device response
B
HYS
Switchpoint
Determinant
Peak Values
Pk
(#1)
, Pk
(#2)
Pk
(#2)
, Pk
(#3)
Pk
(#3)
, Pk
(#4)
Pk
(#4)
, Pk
(#5)
Pk
(#5)
, Pk
(#6)
Pk
(#6)
, Pk
(#7)
Pk
(#7)
, Pk
(#8)
Pk
(#8)
, Pk
(#9)
1
B
OP(#1)
B
RP(#1)
B
OP(#2)
B
RP(#2)
B
OP(#3)
B
RP(#3)
B
OP(#4)
B
RP(#4)
2
3
4
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PDF描述 |
|---|---|
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ATS643LSHTN-I2-T | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數字式開關，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| ATS645 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:True Zero Speed Miniature Gear-Tooth Sensor |
| ATS645LSH | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:True Zero Speed Miniature Gear Tooth Sensor |
| ATS645LSH-I2 | 制造商:Allegro MicroSystems LLC 功能描述: |
| ATS645LSH-I2TN | 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:否 類別:傳感器，轉換器 >> 磁性 - 霍爾效應，數字式開關，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
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